WorldWideScience

Sample records for animal identification systems

  1. System Identification

    NARCIS (Netherlands)

    Keesman, K.J.

    2011-01-01

    Summary System Identification Introduction.- Part I: Data-based Identification.- System Response Methods.- Frequency Response Methods.- Correlation Methods.- Part II: Time-invariant Systems Identification.- Static Systems Identification.- Dynamic Systems Identification.- Part III: Time-varying Syste

  2. Evaluation of API 20E System and Encise Enterotube for the identification of Enterobacteriaceae of animal origin.

    OpenAIRE

    Devenish, J A; Barnum, D A

    1980-01-01

    The API 20E System and the Encise Enterotube were evaluated for the identification of the Enterobacteriaceae isolated from clinical specimens of animal origin at a veterinary diagnostic laboratory. Compared to conventional tubed media, the API 20E System identified 235 of 240 isolates (97.9%) correctly. The Encise Enterotube correctly identified 229 of the 240 isolates (95.4%). Thus, both these identification systems could be used to replace conventional methods for identifying members of thi...

  3. Evidence of consumers' willingness to pay for the national animal identification system of the United States

    Directory of Open Access Journals (Sweden)

    Moises A. Resende Filho

    2011-03-01

    Full Text Available With the United States National Animal Identification System (NAIS in place, consumers' concerns about Bovine Spongiform Encephalopathy (BSE are mitigated and, by inference, consumers will be willing to pay for the NAIS. We estimated twelve alternative specifications of the generalized almost ideal demand system for beef, pork, and poultry, including indexes of news coverage of BSE in the U.S. as proxies for consumers' risk perception on BSE. Using the preferred model, we constructed scenarios on the basis of hypothesized impacts of the NAIS on consumers' risk perception on BSE inmeat. We found that the impact of BSE on consumer demand for meat was in itself sufficient to cover previously estimated costs of implementing the NAIS.Com a implantação do sistema de rastreamento animal (NAIS dos EUA, as preocupações dos consumidores com respeito ao mal da vaca louca (BSE serão atenuadas e, por conseguinte, os consumidores estariam dispostos a pagar pelo NAIS. Foram estimadas doze especificações alternativas do sistema de equações de demanda generalizado quase ideal para as carnes bovina, suína e de frango, incorporando índices com o número de notícias sobre BSE nos EUA como proxies da percepção de risco dos consumidores. O modelo preferido serviu para construir cenários considerando impactos hipotéticos do NAIS sobre a percepção de risco dos consumidores. Conclui-se que o impacto da BSE sobre a demanda por carnes seria suficiente para cobrir estimativas prévias dos custos com a implantação do NAIS.

  4. The benefits of animal identification for food safety.

    Science.gov (United States)

    Augsburg, J K

    1990-03-01

    The Center for Veterinary Medicine supports the effort to have a practical, workable form of mandatory animal identification. An animal identification system will make tracing of the source of animals with drug or chemical residues quicker and more effective. One of the best means of addressing and solving the problem of residues is through mandatory livestock identification. A successful traceback benefits both the producer and the industry. The U.S. Department of Agriculture (USDA) has proposed a mandatory nationwide system to require that all swine in interstate commerce be identified. Under the proposal several means of identification are listed and could be used. Additional methods or devices could be requested in writing to USDA. Persons required to keep records under the system would maintain the documents at their place of business for 2 yr. Records would be available to authorized USDA employees during ordinary business hours. FDA has had difficulty tracing tissue residue violations, particularly those involving sulfamethazine residues in swine. Investigations involving culled dairy cows and veal calves also have been closed due to lack of producer identification. The ability for FDA to determine the source of residues is vitally important in a coordinated government program to eliminate illegal tissue residues. PMID:2318742

  5. Development of FAME Animation System

    Energy Technology Data Exchange (ETDEWEB)

    Hasegawa, Yukihiro; Hamamatsu, Kiyotaka; Shirai, Hiroshi; Matsuda, Toshiaki [Department of Fusion Plasma Research, Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Naka, Ibaraki (Japan); Watanabe, Hideto; Itakura, Hirofumi; Tahata, Yasunori

    1999-02-01

    In order to monitor an animation of magnetohydrodynamic equilibrium calculated by the FAME-II (Fast Analyzer for Magnetohydrodynamic Equilibrium-II) system, a FAME Animation System was developed. This system provides automatically the animation on workstations connected to network with the same period of JT-60U discharge sequence. Then, the system can supply the important information for JT-60U operators to determine control parameters of the succeeding discharge. This report describes the overview of the FAME Animation System. (author)

  6. Remote temperature monitoring and electronic identification in food animals

    Energy Technology Data Exchange (ETDEWEB)

    Seawright, G.L.; Holm, D.M.; Sanders, W.M.

    1977-01-01

    Two radiotelemetric systems were developed for remote monitoring of body temperature in livestock. A battery-powered transmitter system was developed as a laboratory tool for remote continuous monitoring of ear-canal temperatures in animals used in vaccine trials and in studies of livestock diseases. An automated data-recording and processing system was also developed. Pilot studies in cattle indicate that the system will be a valuable quantitative tool for vaccine testing and animal experiments. A second telemetry system was developed for widescale use in the livestock industry. It relies on an implantable passive (no batteries) transponder that is energized by an external source of microwaves to transmit temperature and decimal digit identification to a remote receiver. The animal identification feature, coupled with computers, offers the livestock producer unprecedented capabilities for efficient management of his operation. The temperature feature of transponders can aid in disease detection and control, disease diagnosis, and stress and ovulation detection. Its use for identifying temperature markers in disease and stress-tolerent breeding stock may be valuable in selective breeding programs.

  7. Subject-specific cardiovascular system model-based identification and diagnosis of septic shock with a minimally invasive data set: animal experiments and proof of concept

    International Nuclear Information System (INIS)

    A cardiovascular system (CVS) model and parameter identification method have previously been validated for identifying different cardiac and circulatory dysfunctions in simulation and using porcine models of pulmonary embolism, hypovolemia with PEEP titrations and induced endotoxic shock. However, these studies required both left and right heart catheters to collect the data required for subject-specific monitoring and diagnosis—a maximally invasive data set in a critical care setting although it does occur in practice. Hence, use of this model-based diagnostic would require significant additional invasive sensors for some subjects, which is unacceptable in some, if not all, cases. The main goal of this study is to prove the concept of using only measurements from one side of the heart (right) in a 'minimal' data set to identify an effective patient-specific model that can capture key clinical trends in endotoxic shock. This research extends existing methods to a reduced and minimal data set requiring only a single catheter and reducing the risk of infection and other complications—a very common, typical situation in critical care patients, particularly after cardiac surgery. The extended methods and assumptions that found it are developed and presented in a case study for the patient-specific parameter identification of pig-specific parameters in an animal model of induced endotoxic shock. This case study is used to define the impact of this minimal data set on the quality and accuracy of the model application for monitoring, detecting and diagnosing septic shock. Six anesthetized healthy pigs weighing 20–30 kg received a 0.5 mg kg−1 endotoxin infusion over a period of 30 min from T0 to T30. For this research, only right heart measurements were obtained. Errors for the identified model are within 8% when the model is identified from data, re-simulated and then compared to the experimentally measured data, including measurements not used in the

  8. RECURSIVE SYSTEM IDENTIFICATION

    Institute of Scientific and Technical Information of China (English)

    Han-Fu Chen

    2009-01-01

    Most of existing methods in system identification with possible exception of those for linear systems are off-line in nature, and hence are nonrecursive.This paper demonstrates the recent progress in recursive system identification.The recursive identifi-cation algorithms are presented not only for linear systems (multivariate ARMAX systems) but also for nonlinear systems such as the Hammerstein and Wiener systems, and the non-linear ARX systems.The estimates generated by the algorithms are online updated and converge a.s.to the true values as time tends to infinity.

  9. Molecular identification of trypanosomatids in wild animals.

    Science.gov (United States)

    Tenório, M S; Oliveira e Sousa, L; Alves-Martin, M F; Paixão, M S; Rodrigues, M V; Starke-Buzetti, W A; Araújo Junior, J P; Lucheis, S B

    2014-06-16

    Diverse wild animal species can be reservoirs of zoonotic flagellate parasites, which can cause pathologic Chagas disease. The present study aimed to detect the natural occurrence of flagellate parasites through direct microscopic examination of the parasites in blood samples and through PCR of whole blood and blood culture (haemoculture) samples from 38 captive and 65 free-living wild animals in the Centre for Conservation of Wild Fauna (CCWF), an area endemic for leishmaniasis. For this study, PCR was accomplished using primers for the ribosomal region (ITS-1) of the flagellate parasites. The amplified fragments were cloned and sequenced to identify DNA of the Trypanosomatid parasite species, observed in blood cultures from 3.9% (04/103) of the animals. Through these techniques, Trypanosoma cruzi was identified in haemoculture samples of the following three free-living species: common agouti (Dasyprocta aguti), white-eared opossum (Didelphis albiventris), and nine-banded armadillo (Dasypus novemcinctus). Furthermore, Trypanosoma minasense was identified in whole blood samples from 01 (0.9%) captive animal (black howler monkey-Alouatta caraya). These results demonstrated the first report of T. cruzi isolation in wild species from the CCWF using blood culture, which can be applied in addition to molecular tools for epidemiological studies and to identify trypanosomatids in wild animals. PMID:24636787

  10. IDENTIFICATION OF ANIMAL ADHESIVES USING DNA AMPLIFICATION

    DEFF Research Database (Denmark)

    Eriksen, Anne Marie; Kristensen, Hans Viborg; Bøllingtoft, Peder;

    2014-01-01

    The aim of this study was to examine whether DNA was degraded in the manufacturing of animal glue. To test this, two different types of sturgeon glue (Acipenser sp.) were manufactured using historic recipes. One glue was boiled for a substantial amount of time and the other was kept under 75°C. DNA...... samples were collected from both glues in order to test whether the DNA was degraded in the heating process of making the glue. It was also tested whether two different kinds of flex canvas (for paintings), one coarse and one fine weaved would inhibit the PCR reaction. To do this the glue were applied...... the glue and in 18 out of 24 samples collected of the canvas. In four out of the five cases where it was not possible amplify DNA, the sample belongs to the smallest size of the canvas investigated. As shown in this study it is possible to get DNA out of boiled animal glue and glue applied onto canvas...

  11. Animal Species Identification by PCR – RFLP of Cytochrome b

    Directory of Open Access Journals (Sweden)

    Tomáš Minarovič

    2010-05-01

    Full Text Available An alternative DNA detection system is based on the polymerase chain reaction (PCR amplification of a segment of the mitochondrial cytochrome b gene. Subsequent cleavage by a restriction enzymes gives rise to a specie-specific pattern on an agarose gel. We used five animal species (Mustela vison, Mustela putorius furo, Sus scrofa domesticus, Oryctolagus cuninculus, Anser anser. Length of PCR product was 359 bp and we used universal primers. Restriction fragment length polymorphism was analyzed by using the restriction endonuclease AluI. Results of cleavage were visualized by using electrophoresis and UV transiluminator. Every animal specie has a unique combination of restriction fragments i.e. Mustela vison 81 bp, 109 bp and 169 bp, Mustela putorius furo 169 bp and 190 bp, Sus scrofa domesticus 115 bp and 244 bp, Oryctolagus cunninculus is not cleaved by AluI so it has whole 359 bp fragment on agarose gel, Anser anser 130 bp and 229 bp. The results suggest that the method of PCR - RFLP is rapid and simple method for identification of species. PCR – RFLP can reliably identify chosen species. Application of genetic methods is very useful for breeding of livestock and protection of biodiversity.

  12. Lessons Learned from the Canadian Cattle Industry: National Animal Identification and The Mad Cow

    OpenAIRE

    Lawrence, John D.; Daryl Strohbehn; Daniel D. Loy; Reginald J. Clause

    2003-01-01

    Canada implemented a national cattle identification system, led and developed by the industry. Initially a voluntary program beginning in July 2001, it became mandatory in July 2002 and achieved 92-95 percent compliance by that fall. The costs to develop and initiate the system were low; animals are tagged before leaving the farm of origin and the tags are read when the animal dies or is exported. The national identification system did not protect Canadian cattle from a sole case of bovine sp...

  13. A Heterogeneous Wireless Identification Network for the Localization of Animals Based on Stochastic Movements

    Directory of Open Access Journals (Sweden)

    Ivana Raos

    2009-05-01

    Full Text Available The improvement in the transmission range in wireless applications without the use of batteries remains a significant challenge in identification applications. In this paper, we describe a heterogeneous wireless identification network mostly powered by kinetic energy, which allows the localization of animals in open environments. The system relies on radio communications and a global positioning system. It is made up of primary and secondary nodes. Secondary nodes are kinetic-powered and take advantage of animal movements to activate the node and transmit a specific identifier, reducing the number of batteries of the system. Primary nodes are battery-powered and gather secondary-node transmitted information to provide it, along with position and time data, to a final base station in charge of the animal monitoring. The system allows tracking based on contextual information obtained from statistical data.

  14. Comparative immune systems in animals.

    Science.gov (United States)

    Yuan, Shaochun; Tao, Xin; Huang, Shengfeng; Chen, Shangwu; Xu, Anlong

    2014-02-01

    Animal immune systems can be classified into those of innate immunity and those of adaptive immunity. It is generally thought that the former are universal for all animals and depend on germline-encoded receptors that recognize highly conserved pathogen-associated molecular patterns (PAMPs), whereas the latter are vertebrate specific and are mediated primarily by lymphocytes bearing a unique antigen receptor. However, novel adaptive or adaptive-like immunities have been found in invertebrates and jawless vertebrates, and extraordinarily complex innate immunities, created through huge expansions of many innate gene families, have recently been found in the cephalochordate amphioxus and the echinoderm sea urchin. These studies not only inspire immunologists to seek novel immune mechanisms in invertebrates but also raise questions about the origin and evolution of vertebrate immunities. PMID:25384142

  15. Embedded System for Biometric Identification

    OpenAIRE

    Rosli, Ahmad Nasir Che

    2010-01-01

    This chapter describes the design and implementation of an Embedded System for Biometric Identification from hardware and software perspectives. The first part of the chapter describes the idea of biometric identification. This includes the definition of

  16. Identification of veterinary pathogens by use of commercial identification systems and new trends in antimicrobial susceptibility testing of veterinary pathogens.

    OpenAIRE

    Watts, J. L.; Yancey, R J

    1994-01-01

    Veterinary diagnostic microbiology is a unique specialty within microbiology. Although isolation and identification techniques are similar to those used for human pathogens, many veterinary pathogens require unique cultivation or identification procedures. Commercial identification systems provide rapid, accurate identification of human pathogens. However, the accuracy of these systems with veterinary pathogens varies widely depending on the bacterial species and the host animal from which it...

  17. Identification for automotive systems

    CERN Document Server

    Hjalmarsson, Håkan; Re, Luigi

    2012-01-01

    Increasing complexity and performance and reliability expectations make modeling of automotive system both more difficult and more urgent. Automotive control has slowly evolved from an add-on to classical engine and vehicle design to a key technology to enforce consumption, pollution and safety limits. Modeling, however, is still mainly based on classical methods, even though much progress has been done in the identification community to speed it up and improve it. This book, the product of a workshop of representatives of different communities, offers an insight on how to close the gap and exploit this progress for the next generations of vehicles.

  18. Nuclear weapons identification system

    International Nuclear Information System (INIS)

    A nuclear weapons identification system (NWIS) has been under development at the Oak Ridge Y-12 plant since 1984. NWIS employs active neutron interrogation to obtain a variety of time and frequency analysis signature to identify nuclear weapons in containers. Advantages of NWIS are (1) high sensitivity (small changes in configurations produce large changes in signatures); (2) insensitivity of some signatures to background radiation, (useful for storage configurations or for tracking of secondaries through the first stage of dismantlement since the presence of the primary on the assembled system does not affect some signatures for the secondary); (3) nonintrusive (does not reveal design information, which makes it useful for bilateral treaties or by the International Atomic Energy Agency (IAEA)); and (4) very difficult to deceive

  19. 9 CFR 51.5 - Identification of animals to be destroyed because of brucellosis.

    Science.gov (United States)

    2010-01-01

    ... destroyed because of brucellosis. 51.5 Section 51.5 Animals and Animal Products ANIMAL AND PLANT HEALTH... DISEASES ANIMALS DESTROYED BECAUSE OF BRUCELLOSIS Indemnity for Cattle, Bison, and Swine § 51.5 Identification of animals to be destroyed because of brucellosis. (a) The claimant shall be responsible...

  20. Thermal animal detection system (TADS)

    Energy Technology Data Exchange (ETDEWEB)

    Desholm, M.

    2003-03-01

    This report presents data from equipment tests and software development for the Thermal Animal Detection System (TADS) development project: 'Development of a method for estimating collision frequency between migrating birds and offshore wind turbines'. The technical tests were performed to investigate the performance of remote controlling, video file compression tool and physical stress of the thermal camera when operating outdoors and under the real time vibration conditions at a 2 MW turbine. Furthermore, experimental tests on birds were performed to describe the decreasing detectability with distance on free flying birds, the performance of the thermal camera during poor visibility, and finally, the performance of the thermal sensor software developed for securing high -quality data. In general, it can be concluded that the thermal camera and its related hardware and software, the TADS, are capable of recording migrating birds approaching the rotating blades of a turbine, even under conditions with poor visibility. If the TADS is used in a vertical viewing scenario it would comply with the requirements for a setup used for estimating the avian collision frequency at offshore wind turbines. (au)

  1. Improved Palmprint Identification System

    Directory of Open Access Journals (Sweden)

    Harshala C. Salave

    2015-03-01

    Full Text Available Abstract Generally private information is provided by using passwords or Personal Identification Numbers which is easy to implement but it is very easily stolen or forgotten or hack. In Biometrics for individuals identification uses human physiological which are constant throughout life like palm face DNA iris etc. or behavioral characteristicswhich is not constant in life like voice signature keystroke etc.. But mostly gain more attention to palmprint identification and is becoming more popular technique using for identification and promising alternatives to the traditional password or PIN based authentication techniques. In this paper propose palmprint identification using veins on the palm and fingers. Here use fusion of techniques such as Discrete Wavelet transformDWT Canny Edge Detector Gaussian Filter Principle Component AnalysisPCA.

  2. System Identification with Quantized Observations

    CERN Document Server

    Wang, Le Yi; Zhang, Jifeng; Zhao, Yanlong

    2010-01-01

    This book presents recently developed methodologies that utilize quantized information in system identification and explores their potential in extending control capabilities for systems with limited sensor information or networked systems. The results of these methodologies can be applied to signal processing and control design of communication and computer networks, sensor networks, mobile agents, coordinated data fusion, remote sensing, telemedicine, and other fields in which noise-corrupted quantized data need to be processed. Providing a comprehensive coverage of quantized identification,

  3. Core systems of geometry in animal minds

    OpenAIRE

    Spelke, Elizabeth S.; Lee, Sang Ah

    2012-01-01

    Research on humans from birth to maturity converges with research on diverse animals to reveal foundational cognitive systems in human and animal minds. The present article focuses on two such systems of geometry. One system represents places in the navigable environment by recording the distance and direction of the navigator from surrounding, extended surfaces. The other system represents objects by detecting the shapes of small-scale forms. These two systems show common signatures across a...

  4. Human Language and Animal Communication System

    Institute of Scientific and Technical Information of China (English)

    杨蕴哲

    2016-01-01

    Human language differs from animal communication in many ways. Hockett isolated 16 features that characterize human language and which distinguish it from other communication systems. The following passage will introduce some of these features, and by comparing language with animal communication systems, we can have a better understanding of the nature of language.

  5. 49 CFR 1542.211 - Identification systems.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 9 2010-10-01 2010-10-01 false Identification systems. 1542.211 Section 1542.211... systems. (a) Personnel identification system. The personnel identification system under §§ 1542.201(b)(3... identification media stock and supplies. (iv) Auditing the system at a minimum of once a year or sooner,...

  6. Comparative identification of Candida species isolated from animals using phenotypic and PCR-RFLP methods

    Directory of Open Access Journals (Sweden)

    Nadăş George Cosmin

    2014-06-01

    Full Text Available The aim of this study was to identify 58 Candida sp. strains isolated from animals using the Chromatic Candida test, the API 20 C AUX system, and polymerase chain reaction - restriction fragment length polymorphism (PCR-RFLP. The Chromatic Candida test was able to identify only C. albicans and C. krusei. The API 20 C AUX system and PCR-RFLP had similar specificity for the identification of Candida strains. In case of both methods, Candida albicans was the most frequently isolated species - 22 (37.93% strains, followed by Candida krusei - 17 (29.31% strains, Candida famata - 10 (17.24% strains, Candida parapsilosis - five (8.62% strains, and Candida kefyr - four (6.89% strains. PCR-RFLP represents a reliable, quick and relatively inexpensive genotyping method, recommended for rapid identification of Candida spp.

  7. System Identification and Robust Control

    DEFF Research Database (Denmark)

    Tøffner-Clausen, S.

    uncertainty structures permitted by m is definitely much more flexible than those used in H inifity. Unfortunately m synthesis is a very difficult mathematical problem which is only well developed for purely complex perturbation sets. In order to develop our main result we will unfortunately need to...... these uncertainty ellipses may be represented or, more correct, approximated with a mixed complex and real perturbation set. This is the link needed to combine the results in robust control and system identification into a step-by-step design philosophy for synthesis of robust control systems for scalar......The main purpose of this work is to develop a coherent system identification based robust control design methodology by combining recent results from system identification and robust control. In order to accomplish this task new theoretical results will be given in both fields. Firstly, however, an...

  8. System identification. [of space structures

    Science.gov (United States)

    Juang, Jer-Nan

    1993-01-01

    Major issues in system identification are summarized and recent advances are reviewed. Modal testing and system identification used in control theory are examined, and the mathematical relationships and conversions of the models appropriate to modal testing and those appropriate to modern control design methods are discussed. The importance of obtaining input and output matrices in modal testing is emphasized, and the changes that may be needed in modal testing procedures to meet the needs of the control system designer are addressed. Directions for future research are considered.

  9. Directed animals, quadratic and rewriting systems

    OpenAIRE

    Marckert, Jean-François

    2011-01-01

    A directed animal is a percolation cluster in the directed site percolation model. The aim of this paper is to exhibit a strong relation between the problem of computing the generating function $\\G$ of directed animals on the square lattice, counted according to the area and the perimeter, and the problem of solving a system of quadratic equations involving unknown matrices. We present some solid evidence that some infinite explicit matrices, the fixed points of a rewriting like system are th...

  10. Histopathological identification of aspergillosis in animals at Dhaka Zoo

    OpenAIRE

    Ahasan, S.A.; Chowdhury, E.H.; Rahman, M M; Rahman, M. A.

    2013-01-01

    Dhaka Zoo with 2000 animal heads of 184 species from significant genetic diversity and five million visitors’ influx round the year is placing it a public health important spot. This study was conducted to investigate aspergillosis in animals at Dhaka Zoo to ascertain animal health, welfare and public health safety standard. One hundred and two necropsied tissue samples preserved in 10% neutral buffered formalin at necropsy from 36 animals of 25 different species were collected from Dhaka Zoo...

  11. System identification for multivariable control

    Science.gov (United States)

    Vanzee, G. A.

    1981-05-01

    System identification methods and modern control theory are applied to industrial processes. These processes must often be controlled in order to meet certain requirements with respect to the product quality, safety, energy consumption, and environmental load. Modern control system design methods which take the occurring interaction phenomena and stochastic disturbances into account are used. An accurate dynamic mathematical model of the process, by theoretical modelling and/or by system identification is obtained. The computational aspects of two important types of identifications methods, i.e., stochastic realization and prediction error based parameter estimation are studied. The studied computational aspects are the robustness, the accuracy, and the computational costs of the methods. Theoretical analyses and applications to a multivariable pilot scale process, operating under closed loop conditions are investigated.

  12. Designing an electronic identification system and its potential use inbeeftraceability

    OpenAIRE

    Hector I. Reyes-Moncayo; Ana B. Vacca-Casanova; Agustín Góngora-Orjuela

    2011-01-01

    An electronic identification (EID) system was designed for livestock and its potential use in beef traceability was considered. Radio-frequency identification (RFID) technology was used, along with a web-orientated information system involving the different actors in the meat chain. The RFID reader device was tested and operated in real conditions, accurate readings beingobtainedat a 5-10 cm distance from an animal's skin. Although there were some limitations regarding the ergonomics involve...

  13. Do Animal Communication Systems Have Phonemes?

    Science.gov (United States)

    Bowling, Daniel L; Fitch, W Tecumseh

    2015-10-01

    Biologists often ask whether animal communication systems make use of conceptual entities from linguistics, such as semantics or syntax. A new study of an Australian bird species argues that their communication system has phonemes, but we argue that imposing linguistic concepts obscures, rather than clarifyies, communicative function. PMID:26346993

  14. Producing patient-avatar identification in animation video information on spinal anesthesia by different narrative strategies.

    Science.gov (United States)

    Høybye, Mette Terp; Vesterby, Martin; Jørgensen, Lene Bastrup

    2016-06-01

    Visual approaches to health information reduce complexity and may bridge challenges in health literacy. But the mechanisms and meanings of using animated video in communication with patients undergoing surgery are not well described. By comparing two versions of a two-dimensional animated video on spinal anesthesia, this study tested the patient-avatar identification within two different narrative models. To explore the perspectives of total hip arthroplasty, we employed qualitative methods of interviews and ethnographic observation. The animated presentation of the spinal anesthesia procedure was immediately recognized by all participants as reflecting their experience of the procedure independent of the narrative form. The avatar gender did not affect this identification. We found no preference for either narrative form. This study supports the potential of animation video in health informatics as a didactic model for qualifying patient behavior. Animation video creates a high degree of identification that may work to reduce pre-surgical anxiety. PMID:25538108

  15. Directed animals, quadratic and rewriting systems

    CERN Document Server

    Marckert, Jean-François

    2011-01-01

    A directed animal is a percolation cluster in the directed site percolation model. The aim of this paper is to exhibit a strong relation between in one hand, the problem of computing the generating function $\\G$ of directed animals on the square lattice, counted according to the area and the perimeter, and on the other hand, the problem to find a solution to a system of quadratic equations involving unknown matrices. The matrices solution of this problem can be finite or infinite. We were unable to find finite solutions. We present some solid clues that some infinite explicit matrices, fix points of a rewriting like system are the natural solutions of this system of equations: some strong evidences are given that the problem of finding $\\G$ reduces then to the problem of finding an eigenvector to an explicit infinite matrix. Similar properties are shown for other combinatorial questions concerning directed animals, and for different lattices.

  16. MICE Particle Identification System

    CERN Document Server

    Bogomilov, M

    2010-01-01

    The Muon Ionization Cooling Experiment, MICE, at the ISIS accelerator lo- cated at the Rutherford Appleton Laboratory, UK, will be the first experiment to study muon cooling at high precision. Demonstration of muon ionization cooling is an essential step towards the construction of a neutrino factory or a muon collider. Muons are produced by pion decay in a superconducting solenoid and reach MICE with a range of emittances and momenta. The purity of the muon beam is ensured by a system of particle detectors we will briefly describe here.

  17. A bimodal biometric identification system

    Science.gov (United States)

    Laghari, Mohammad S.; Khuwaja, Gulzar A.

    2013-03-01

    Biometrics consists of methods for uniquely recognizing humans based upon one or more intrinsic physical or behavioral traits. Physicals are related to the shape of the body. Behavioral are related to the behavior of a person. However, biometric authentication systems suffer from imprecision and difficulty in person recognition due to a number of reasons and no single biometrics is expected to effectively satisfy the requirements of all verification and/or identification applications. Bimodal biometric systems are expected to be more reliable due to the presence of two pieces of evidence and also be able to meet the severe performance requirements imposed by various applications. This paper presents a neural network based bimodal biometric identification system by using human face and handwritten signature features.

  18. A particle identification system

    International Nuclear Information System (INIS)

    Particles of different charge Z and mass M resulting from a nuclear reaction can be distinguished by a measurement of the differential energy loss Δ E and the energy E. The product Δ E x E is proportional to Z2M times, a logarithmic term which contains M, Z and E. It is possible to construct a function based on the expression of the product, which does not depend on energy. The reaction products can be identified by analysing the output of an analogue circuit, which forms an approximation of the desired function. Such a circuit is presented here. Two logarithmic pulse amplifiers, two adding circuits and two attenuators are the essential parts of the system. The logarithmic behaviour of the two amplifiers is determined by the forward current characteristic of a diode. (author)

  19. MICE Particle Identification Systems

    CERN Document Server

    Sanders, D A

    2009-01-01

    The international Muon Ionization Cooling Experiment (MICE) is being built, at the Rutherford Appleton Laboratory (RAL), to demonstrate the feasibility of ionization cooling of muon beams. This is one of the major technological steps needed in the development of a muon collider and a neutrino factory based on muon decays in a storage ring. MICE will use particle detectors to measure the cooling effect with high precision, achieving a precision on the measurement of emittance of 0.1% or better. The particle i.d. detectors and trackers must work in harsh environmental conditions due to high magnetic fringe fields and RF noise. We will briefly describe the MICE particle i.d. detector systems, and show some current performance measurements of these detectors.

  20. System parameter identification information criteria and algorithms

    CERN Document Server

    Chen, Badong; Hu, Jinchun; Principe, Jose C

    2013-01-01

    Recently, criterion functions based on information theoretic measures (entropy, mutual information, information divergence) have attracted attention and become an emerging area of study in signal processing and system identification domain. This book presents a systematic framework for system identification and information processing, investigating system identification from an information theory point of view. The book is divided into six chapters, which cover the information needed to understand the theory and application of system parameter identification. The authors' research pr

  1. Automated identification of animal species in camera trap images

    NARCIS (Netherlands)

    Yu, X.; Wang, J.; Kays, R.; Jansen, P.A.; Wang, T.; Huang, T.

    2013-01-01

    Image sensors are increasingly being used in biodiversity monitoring, with each study generating many thousands or millions of pictures. Efficiently identifying the species captured by each image is a critical challenge for the advancement of this field. Here, we present an automated species identif

  2. Producing patient-avatar identification in animation video information on spinal anesthesia by different narrative strategies

    DEFF Research Database (Denmark)

    Høybye, Mette Terp; Vesterby, Martin; Jørgensen, Lene Bastrup;

    2014-01-01

    Visual approaches to health information reduce complexity and may bridge challenges in health literacy. But the mechanisms and meanings of using animated video in communication with patients undergoing surgery are not well described. By comparing two versions of a two-dimensional animated video o...... didactic model for qualifying patient behavior. Animation video creates a high degree of identification that may work to reduce pre-surgical anxiety....

  3. Advances in Small Animal Imaging Systems

    International Nuclear Information System (INIS)

    The rapid growth in genetics and molecular biology combined with the development of techniques for genetically engineering small animals has led to an increased interest in in vivo laboratory animal imaging during the past few years. For this purpose, new instrumentation, data acquisition strategies, and image processing and reconstruction techniques are being developed, researched and evaluated. The aim of this article is to give a short overview of the state of the art technologies for high resolution and high sensitivity molecular imaging techniques, primarily positron emission tomography (PET) and single photon emission computed tomography (SPECT). The basic needs of small animal imaging will be described. The evolution in instrumentation in the past two decades, as well as the commercially available systems will be overviewed. Finally, the new trends in detector technology and preliminary results from challenging applications will be presented. For more details a number of references are provided

  4. Identification of a family of animal sphingomyelin synthases

    OpenAIRE

    Huitema, K.R.; van den Dikkenberg, J.; Brouwers, J.F.H.M.; Holthuis, J.C.M.

    2003-01-01

    Sphingomyelin (SM) is a major component of animal plasma membranes. Its production involves the transfer of phosphocholine from phosphatidylcholine onto ceramide, yielding diacylglycerol as a side product. This reaction is catalysed by SM synthase, an enzyme whose biological potential can be judged from the roles of diacylglycerol and ceramide as anti- and proapoptotic stimuli, respectively. SM synthesis occurs in the lumen of the Golgi as well as on the cell surface. As no gene for SM syntha...

  5. Identification and Modelling of Linear Dynamic Systems

    Directory of Open Access Journals (Sweden)

    Stanislav Kocur

    2006-01-01

    Full Text Available System identification and modelling are very important parts of system control theory. System control is only as good as good is created model of system. So this article deals with identification and modelling problems. There are simple classification and evolution of identification methods, and then the modelling problem is described. Rest of paper is devoted to two most known and used models of linear dynamic systems.

  6. Electronic identification of animals, what are the applicability of these methods in meat production?

    Directory of Open Access Journals (Sweden)

    Aérica Cirqueira Nazareno

    2014-10-01

    Full Text Available Currently, the concern with safe food and its quality has been achieving great growth worldwide. For those attributes to be secured, electronic identification is the first step to ensure animal products traceability. This research aimed to study invasive and non-invasive electronic identification methods, and the benefits and drawbacks of these mechanisms in meat productive chain, since 1983 to date. By means of this bibliographic survey, it was observed there are several tools available that may be useful to farmers to attain the electronic identification, and the advantages and disadvantages of each method should be considered to choose the best one for each situation. Invasive methods have been subject of many studies, which reflects the broad commercial use of these identifiers, however, issues related to animal welfare and specific disadvantages may restrict their use. Non-invasive methods are more aligned to the practices of animal welfare, but they are more expensive, less practical, and less studied than others.

  7. Electronic identification of animals, what are the applicability of these methods in meat production?

    OpenAIRE

    Aérica Cirqueira Nazareno; Leonardo Parenti Roncada; Iran José Oliveira da Silva

    2014-01-01

    Currently, the concern with safe food and its quality has been achieving great growth worldwide. For those attributes to be secured, electronic identification is the first step to ensure animal products traceability. This research aimed to study invasive and non-invasive electronic identification methods, and the benefits and drawbacks of these mechanisms in meat productive chain, since 1983 to date. By means of this bibliographic survey, it was observed there are several tools available that...

  8. Expert system based radionuclide identification

    International Nuclear Information System (INIS)

    An expert system coupled with the gamma spectrum analysis system SAMPO has been developed for automating the qualitative identification of radionuclides as well as for determining the quantitative parameters of the spectrum components. The program is written in C-language and runs in various environments ranging from PCs to UNIX workstations. The expert system utilizes a complete gamma library with over 2600 nuclides and 80,000 lines, and a rule base of about fifty criteria including energies, relative peak intensities, genesis modes, half lives, parent-daughter relationships, etc. The rule base is furthermore extensible by the user. This is not an original contribution but a somewhat updated version of papers and reports previously published elsewhere. (author)

  9. CHIP: Commodity based Hazard Identification Protocol for emerging diseases in plants and animals

    OpenAIRE

    Bremmer, J.; Swanenburg, M.; Galen, van, M.A.; Hoek, Maarten; Rau, M.L.; Hennen, W.H.G.J.; Benninga, J.; Ge, L.; Breukers, M.L.H.

    2012-01-01

    This project comprised the development of a commodity-based hazard identification protocol for biological hazards in plants and animals as a decision support tree programmed in Excel. The content of the decision tree is based on the results of a systematic review of pest and pathogen characteristics, a review of risk assessment schemes and on expert judgement. Application of the protocol results in an indication of the level of likelihood of entry of animal and plant pathogens/pests in the ar...

  10. Dosimetry of an animal irradiation system

    International Nuclear Information System (INIS)

    Radiation therapy uses ionizing radiation for cancer treatment, but its effectiveness may be limited by the consequent appearance of radiodermatitis. This problem may present several degrees: the highest among them is radionecrosis. Therefore, a model of study for the animal irradiation system (AIS) was built, generating radionecrosis on rat backs. The AIS is comprised by: a) a shield between the 60Co irradiator metallic guide and the animal immobilizer (AI), with holes exposing the rat skin; b) a shield on the AI posterior part and (c) the AIS angle. The doses were measured with alanine pellets in seven positions (two external and five internal) and different heights, in axial planes along the AI, and irradiated with 85 Gy. The similarity in the geometry of the AIs made it possible to relate the doses of positions 1-7 with the same height among the AISs. The AISs equidistance to the source allowed simultaneous animal exposure. Minimizing the shielding and maximizing the angles among the AISs provided average doses almost identical in position 1. A small variation among the mean doses for each of the AISs enabled to replace them by the average doses of the three AISs at position 1. Shields allowed the attenuation of the uncertainties in the alanine pellet in the AI, reduction of the exposure time without compromising rat security and the rise of the dose in measurement positions 1 and 2. The maximization of the angles among the AISs reduced the shielding secondary radiation contribution. (author)

  11. Dosimetry of an animal irradiation system

    Energy Technology Data Exchange (ETDEWEB)

    Alves, Nelson M.; Funari, Ana P.; Miranda, Jurandir T.; Napolitano, Celia M.; Goncalves, Josemary A.C.; Bueno, Carmen C.; Mathor, Monica B., E-mail: nelsonnininho@gmail.com [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)

    2015-07-01

    Radiation therapy uses ionizing radiation for cancer treatment, but its effectiveness may be limited by the consequent appearance of radiodermatitis. This problem may present several degrees: the highest among them is radionecrosis. Therefore, a model of study for the animal irradiation system (AIS) was built, generating radionecrosis on rat backs. The AIS is comprised by: a) a shield between the {sup 60}Co irradiator metallic guide and the animal immobilizer (AI), with holes exposing the rat skin; b) a shield on the AI posterior part and (c) the AIS angle. The doses were measured with alanine pellets in seven positions (two external and five internal) and different heights, in axial planes along the AI, and irradiated with 85 Gy. The similarity in the geometry of the AIs made it possible to relate the doses of positions 1-7 with the same height among the AISs. The AISs equidistance to the source allowed simultaneous animal exposure. Minimizing the shielding and maximizing the angles among the AISs provided average doses almost identical in position 1. A small variation among the mean doses for each of the AISs enabled to replace them by the average doses of the three AISs at position 1. Shields allowed the attenuation of the uncertainties in the alanine pellet in the AI, reduction of the exposure time without compromising rat security and the rise of the dose in measurement positions 1 and 2. The maximization of the angles among the AISs reduced the shielding secondary radiation contribution. (author)

  12. Packaging systems for animal origin food

    Directory of Open Access Journals (Sweden)

    2011-03-01

    Full Text Available The main task of food packaging is to protect the product during storage and transport against the action of biological, chemical and mechanical factors. The paper presents packaging systems for food of animal origin. Vacuum and modified atmosphere packagings were characterised together with novel types of packagings, referred to as intelligent packaging and active packaging. The aim of this paper was to present all advantages and disadvantages of packaging used for meat products. Such list enables to choose the optimal type of packaging for given assortment of food and specific conditions of the transport and storing.

  13. Rugged Video System For Inspecting Animal Burrows

    Science.gov (United States)

    Triandafils, Dick; Maples, Art; Breininger, Dave

    1992-01-01

    Video system designed for examining interiors of burrows of gopher tortoises, 5 in. (13 cm) in diameter or greater, to depth of 18 ft. (about 5.5 m), includes video camera, video cassette recorder (VCR), television monitor, control unit, and power supply, all carried in backpack. Polyvinyl chloride (PVC) poles used to maneuver camera into (and out of) burrows, stiff enough to push camera into burrow, but flexible enough to bend around curves. Adult tortoises and other burrow inhabitants observable, young tortoises and such small animals as mice obscured by sand or debris.

  14. Fieldable Nuclear Material Identification System

    International Nuclear Information System (INIS)

    The Fieldable Nuclear Material Identification System (FNMIS), funded by the NA-241 Office of Dismantlement and Transparency, provides information to determine the material attributes and identity of heavily shielded nuclear objects. This information will provide future treaty participants with verifiable information required by the treaty regime. The neutron interrogation technology uses a combination of information from induced fission neutron radiation and transmitted neutron imaging information to provide high confidence that the shielded item is consistent with the host's declaration. The combination of material identification information and the shape and configuration of the item are very difficult to spoof. When used at various points in the warhead dismantlement sequence, the information complimented by tags and seals can be used to track subassembly and piece part information as the disassembly occurs. The neutron transmission imaging has been developed during the last seven years and the signature analysis over the last several decades. The FNMIS is the culmination of the effort to put the technology in a usable configuration for potential treaty verification purposes.

  15. Model Updating Nonlinear System Identification Toolbox Project

    Data.gov (United States)

    National Aeronautics and Space Administration — ZONA Technology proposes to develop an enhanced model updating nonlinear system identification (MUNSID) methodology by adopting the flight data with...

  16. Model Updating Nonlinear System Identification Toolbox Project

    Data.gov (United States)

    National Aeronautics and Space Administration — ZONA Technology (ZONA) proposes to develop an enhanced model updating nonlinear system identification (MUNSID) methodology that utilizes flight data with...

  17. Radio frequency identification of animals, the quality of products in the field.

    NARCIS (Netherlands)

    Hogewerf, P.H.

    2012-01-01

    In several parts of the world livestock animals (sheep, goats and cattle) are identified with radiofrequency identification (RFID) devices. These transponders can be read with handheld and stationary readers. The reading can be performed on the farm, during transport, in the sales yard and in the sl

  18. Effects of Animation on Naming and Identification across Two Graphic Symbol Sets Representing Verbs and Prepositions

    Science.gov (United States)

    Schlosser, Ralf W.; Koul, Rajinder; Shane, Howard; Sorce, James; Brock, Kristofer; Harmon, Ashley; Moerlein, Dorothy; Hearn, Emilia

    2014-01-01

    Purpose: The effects of animation on naming and identification of graphic symbols for verbs and prepositions were studied in 2 graphic symbol sets in preschoolers. Method: Using a 2 × 2 × 2 × 3 completely randomized block design, preschoolers across three age groups were randomly assigned to combinations of symbol set (Autism Language Program…

  19. Trends and progress in system identification

    CERN Document Server

    Eykhoff, Pieter

    1981-01-01

    Trends and Progress in System Identification is a three-part book that focuses on model considerations, identification methods, and experimental conditions involved in system identification. Organized into 10 chapters, this book begins with a discussion of model method in system identification, citing four examples differing on the nature of the models involved, the nature of the fields, and their goals. Subsequent chapters describe the most important aspects of model theory; the """"classical"""" methods and time series estimation; application of least squares and related techniques for the e

  20. Complete Isolation System for Laboratory Infectious Animal

    Institute of Scientific and Technical Information of China (English)

    Jean; Pierre

    2005-01-01

    Contents:Duringthe development of biological medical science,a great number of research experiments are carried out andthe various infectious animal experiments are necessary part of them.For lab animal experiments,it is necessary tochoose proper isolation equipments accordingto experiment hazardlevels.1.FunctionsAnimal isolation systemare used broadlyin laboratory research,pharmaceuticals and medical areas.The isolationsystemhas become excellent equipmentsin animal breeding,disease diagnosis,analysis,test ...

  1. Support Vector Machines for System Identification

    OpenAIRE

    Marconato, Anna; Gubian, Michele; Boni, Andrea; Petri, Dario

    2007-01-01

    In this document we propose the use of a widely known learning-from-examples paradigm, namely the Support Vector Machines for Regression (SVRs), for system identification problems. We start off with the identification of a simple linear system taken from the literature, and proceed with the non-linear case as a second step.

  2. System Identification for Indoor Climate Control

    CERN Document Server

    M., A W; H., P W M; Steskens,

    2012-01-01

    The study focuses on the applicability of system identification to identify building and system dynamics for climate control design. The main problem regarding the simulation of the dynamic response of a building using building simulation software is that (1) the simulation of a large complex building is time consuming, and (2) simulation results often lack information regarding fast dynamic behaviour (in the order of seconds), since most software uses a discrete time step, usually fixed to one hour. The first objective is to study the applicability of system identification to reduce computing time for the simulation of large complex buildings. The second objective is to research the applicability of system identification to identify building dynamics based on discrete time data (one hour) for climate control design. The study illustrates that system identification is applicable for the identification of building dynamics with a frequency that is smaller as the maximum sample frequency as used for identificat...

  3. A Distant Solar System (Artist's Concept Animation)

    Science.gov (United States)

    2004-01-01

    This animation portrays an artist's concept of a distant hypothetical solar system, about the same age as our own. It begins close to the star, and then moves out past a number of planets. Though 'extrasolar' planets are too small to be seen with telescopes, astronomers have detected more than 100 gas giants like Jupiter via their gravitational tug on their parent stars. The view pulls back to reveal the outer fringes of the system and a ring of dusty debris that circles the star. This debris is all that remains of the planet-forming disk from which the planets evolved. Planets are formed when dusty material in a large disk surrounding a young star clumps together. Leftover material is eventually blown out by solar wind or pushed out by gravitational interactions with planets. Billions of years later, only an outer disk of debris remains. These outer debris disks are too faint to be imaged directly by visible-light telescopes. They are washed out by the glare of the Sun. However, NASA's Spitzer Space Telescope can detect their heat, or excess thermal emission, in infrared light. This allows astronomers to study the aftermath of planet building in distant solar systems like our own.

  4. System identification for robust control design

    Energy Technology Data Exchange (ETDEWEB)

    Dohner, J.L.

    1995-04-01

    System identification for the purpose of robust control design involves estimating a nominal model of a physical system and the uncertainty bounds of that nominal model via the use of experimentally measured input/output data. Although many algorithms have been developed to identify nominal models, little effort has been directed towards identifying uncertainty bounds. Therefore, in this document, a discussion of both nominal model identification and bounded output multiplicative uncertainty identification will be presented. This document is divided into several sections. Background information relevant to system identification and control design will be presented. A derivation of eigensystem realization type algorithms will be presented. An algorithm will be developed for calculating the maximum singular value of output multiplicative uncertainty from measured data. An application will be given involving the identification of a complex system with aliased dynamics, feedback control, and exogenous noise disturbances. And, finally, a short discussion of results will be presented.

  5. Modeling dopamine system dysfunction in experimental animals

    International Nuclear Information System (INIS)

    Quite a substantial number of human disorders have been associated with a primary or a secondary impairment of one or several of the dopaminergic pathways. Among disorders associated with a primary impairment of dopaminergic transmission are Parkinson's disease, striatonigral degeneration, progressive supranuclear palsy, and possibly schizophrenia. Diseases of secondary dopamine dysfunction are chiefly represented by Huntington's disease in which dopaminergic transmission is being interrupted by progressive loss of the striatal neurons bearing the postsynaptic D1- and D2-dopamine receptors. Central dopaminergic systems have anatomical as well as organizational properties that render them unique by comparison to other neurotransmission systems, making them able to play a pivotal role in the modulation of various important brain functions such as locomotor activity, attention, and some cognitive abilities. These properties of dopamine neurons have obviously several implications in the clinical expression of human disorders involving dopamine neuron dysfunction. In addition, they can greatly influence the clinical/behavioral consequences of experimental lesions in animal models of dopamine dysfunctions

  6. Systems for Detection and Identification of Biological Aerosols (Review Paper)

    OpenAIRE

    Eva Švabenska

    2012-01-01

    Easy and inexpensive manufacturing of biological weapons, their complicated detection, expensive protection, difficult treating of affected individuals, selective impact only for people, animals or plants, are all factors making an effective defense against biological warfare agents very difficult. The aim of this study is an introduction to the systems for the detection and identification of biological aerosols containing dangerous bioagents. The basic techniques used for detection and ident...

  7. Species identification and authentication of tissues of animal origin using mitochondrial and nuclear markers.

    Science.gov (United States)

    Rastogi, Gurdeep; Dharne, Mahesh S; Walujkar, Sandeep; Kumar, Ashutosh; Patole, Milind S; Shouche, Yogesh S

    2007-08-01

    We evaluated and compared the utility of mitochondrial markers viz. 16S rDNA and NADH dehydrogenase subunit 4 (ND4) and a nuclear marker viz. the actin gene to identify the specimens of animal origin for forensic identification, food regulatory control and to prevent illegal trading, poaching and conservation of endangered species. We also tested PCR fingerprinting methods like RAPD and actin barcoding to generate species-specific "fingerprints". Our results suggested that mitochondrial markers are more efficient than nuclear markers for the purpose of species identification and authentication. Among PCR fingerprinting approaches, RAPD was proved to be more discriminatory, accurate and efficient than actin fingerprinting. Considering the present scenario in trading of vertebrate animal tissues like buffalo, cow, pig, goat, chicken, frogs, fishes and snakes etc., mitogenomics based technology proved to be efficient and reliable in resolving problems like meat adulteration and smuggling across countries. PMID:22061243

  8. High Performance Fingerprint Identification System

    OpenAIRE

    Dr.R.Seshadri; Yaswanth Kumar.Avulapati

    2010-01-01

    Biometrics is the science of establishing the identity of an individual based on their physical, chemical and behavioral characteristics of the person. Fingerprints are the most widely used biometric feature for person identification and verification in the field of biometric identification .A finger print is the representation of the epidermis of a finger. It consists of a pattern of interleaved ridges and valleys. Fingerprints are graphical flow-like ridges present on human fingers. They ar...

  9. Isolation and identification of Salmonella from diarrheagenic infants and young animals, sewage waste and fresh vegetables

    OpenAIRE

    Amruta Nair; T. Balasaravanan; MALIK, S V S; Vysakh Mohan; Manesh Kumar; Jess Vergis; Rawool, Deepak B.

    2015-01-01

    Aim: This study was carried out to determine the prevalence, distribution, and identification of Salmonella serotypes in diarrheagenic infants and young animals, including sewage waste and fresh vegetables. Materials and Methods: A total of 550 samples were processed for the isolation of Salmonella spp., using standard microbiological and biochemical tests. Further polymerase chain reaction (PCR) detection of Salmonella genus was carried out using self-designed primers targeting invA gene ...

  10. Accelerometer based solution for precision livestock farming: geolocation enhancement and animal activity identification

    Science.gov (United States)

    Terrasson, G.; Llaria, A.; Marra, A.; Voaden, S.

    2016-07-01

    The rapid evolution of electronics and communication technologies in the last years has contributed to the expansion of Precision Livestock Farming applications. In this context, animal geolocation systems applied to extensive farming are interesting for farmers to optimize their daily work organization. Nevertheless, the deployment of these solutions implies several technical challenges which must be resolved, mainly the energy consumption and the suitability of the communication protocols. A recently developed solution that deals with these technical challenges is the e-Pasto platform, which is composed of low power geolocation devices embedded into collars that offer an energetic autonomy of at least seven months, completed with a visualization user interface. The autonomy is assured employing a duty-cycle operation that results in one geolocation position measurement per hour. This work studies the employ of accelerometers to overcome this limitation assuring, at the same time, the required autonomy for the geolocation device. The authors also propose an algorithm that processes the acceleration data in order to identify the steps of an individual. The whole solution (step identification and geolocation) has been validated by means of several experimental tests.

  11. An overview of system modeling and identification

    OpenAIRE

    Favier, Gérard

    2010-01-01

    International audience System identification consists in building mathematical models of dynamical systems from experimental data. Such a methodology was mainly developed for designing model-based control systems. More generally, parameter estimation is at the heart of many signal processing applications aiming to extract information from signals, like radar, sonar, seismic, speech, communication, or biomedical (EEG, ECG, EMG) signals. Nowadays, dynamical models and identification methods ...

  12. Electro-optical fuel pin identification system

    International Nuclear Information System (INIS)

    A prototype Electro-Optical Fuel Pin Identification System referred to as the Fuel Pin Identification System (FPIS) has been developed by the Hanford Engineering Development Laboratory (HEDL) in support of the Fast Flux Test Facility (FFTF) presently under construction at HEDL. The system is designed to remotely read an alpha-numeric identification number that is roll stamped on the top of the fuel pin end cap. The prototype FPIS consists of four major subassemblies: optical read head, digital compression electronics, video display, and line printer

  13. Identification of Nonlinear Systems Using Neurofuzzy Networks

    Institute of Scientific and Technical Information of China (English)

    LI Ying; JIAO Licheng

    2001-01-01

    This paper presents a compound neu-ral network model, I.e., adaptive neurofuzzy network(ANFN), which can be used for identifying the com-plicated nonlinear system. The proposed ANFN has asimple structure and exploits a hybrid algorithm com-bining supervised learning and unsupervised learning.In addition, ANFN is capable of overcoming the errorof system identification due to the existence of somechanging points and improving the accuracy of identi-fication of the whole system. The effectiveness of themodel and its algorithm are tested on the identifica-tion results of missile attacking area.

  14. Modeling and Identification of Multirate Systems

    Institute of Scientific and Technical Information of China (English)

    Feng DING; Tongwen CHEN

    2005-01-01

    Multirate systems are abundant in industry; for example, many soft-sensor design problems are related to modeling, parameter identification, or state estimation involving multirate systems. The study of multirate systems goes back to the early 1950's, and has become an active research area in systems and control. This paper briefly surveys the history of development in the area of multirate systems, and introduces some basic concepts and latest results on multirate systems, including a polynomial transformation technique and the lifting technique as tools for handling multirate systems, lifted state space models, parameter identification of dual-rate systems, how to determine fast single-rate models from dual-rate models and directly from dual-rate data, and a hierarchical identification method for general multirate systems. Finally, some further research topics for multirate systems are given.

  15. Access control and personal identification systems

    CERN Document Server

    Bowers, Dan M

    1988-01-01

    Access Control and Personal Identification Systems provides an education in the field of access control and personal identification systems, which is essential in selecting the appropriate equipment, dealing intelligently with vendors in purchases of the equipment, and integrating the equipment into a total effective system. Access control devices and systems comprise an important part of almost every security system, but are seldom the sole source of security. In order for the goals of the total system to be met, the other portions of the security system must also be well planned and executed

  16. Towards the identification of plant and animal binders on Australian stone knives.

    Science.gov (United States)

    Blee, Alisa J; Walshe, Keryn; Pring, Allan; Quinton, Jamie S; Lenehan, Claire E

    2010-07-15

    There is limited information regarding the nature of plant and animal residues used as adhesives, fixatives and pigments found on Australian Aboriginal artefacts. This paper reports the use of FTIR in combination with the chemometric tools principal component analysis (PCA) and hierarchical clustering (HC) for the analysis and identification of Australian plant and animal fixatives on Australian stone artefacts. Ten different plant and animal residues were able to be discriminated from each other at a species level by combining FTIR spectroscopy with the chemometric data analysis methods, principal component analysis (PCA) and hierarchical clustering (HC). Application of this method to residues from three broken stone knives from the collections of the South Australian Museum indicated that two of the handles of knives were likely to have contained beeswax as the fixative whilst Spinifex resin was the probable binder on the third. PMID:20602964

  17. 2010 United States Automatic Identification System Database

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The 2010 United States Automatic Identification System Database contains vessel traffic data for planning purposes within the U.S. coastal waters. The database is...

  18. 2012 United States Automatic Identification System Database

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The 2012 United States Automatic Identification System Database contains vessel traffic data for planning purposes within the U.S. coastal waters. The database is...

  19. Advanced 3D Object Identification System Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Optra will build an Advanced 3D Object Identification System utilizing three or more high resolution imagers spaced around a launch platform. Data from each imager...

  20. 2014 United States Automatic Identification System Database

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The 2014 United States Automatic Identification System Database contains vessel traffic data for planning purposes within the U.S. coastal waters. The database is...

  1. 2009 United States Automatic Identification System Database

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The 2009 United States Automatic Identification System Database contains vessel traffic data for planning purposes within the U.S. coastal waters. The database is...

  2. Cost Optimal System Identification Experiment Design

    DEFF Research Database (Denmark)

    Kirkegaard, Poul Henning

    A structural system identification experiment design method is formulated in the light of decision theory, structural reliability theory and optimization theory. The experiment design is based on a preposterior analysis, well-known from the classical decision theory. I.e. the decisions concerning...... reflecting the cost of the experiment and the value of obtained additional information. An example concerning design of an experiment for parametric identification of a single degree of freedom structural system shows the applicability of the experiment design method....

  3. On-line Bayesian System Identification

    OpenAIRE

    Romeres, Diego; Prando, Giulia; Pillonetto, Gianluigi; Chiuso, Alessandro

    2016-01-01

    We consider an on-line system identification setting, in which new data become available at given time steps. In order to meet real-time estimation requirements, we propose a tailored Bayesian system identification procedure, in which the hyper-parameters are still updated through Marginal Likelihood maximization, but after only one iteration of a suitable iterative optimization algorithm. Both gradient methods and the EM algorithm are considered for the Marginal Likelihood optimization. We c...

  4. Hazard identification and characterization of welfare aspects during transport of farm animals

    NARCIS (Netherlands)

    Reenen, van C.G.; Reimert, H.G.M.; Gerritzen, M.A.; Leenstra, F.R.; Lambooij, E.

    2008-01-01

    Within the EU, free movement of animals from one Member State to another and more uniformity among production animals and production systems has resulted in more long distance transport from farm to farm or from farm to slaughterhouse. Since there is a lot of discussion about transport of farm anima

  5. A European perspective on alternatives to animal testing for environmental hazard identification and risk assessment.

    Science.gov (United States)

    Scholz, Stefan; Sela, Erika; Blaha, Ludek; Braunbeck, Thomas; Galay-Burgos, Malyka; García-Franco, Mauricio; Guinea, Joaquin; Klüver, Nils; Schirmer, Kristin; Tanneberger, Katrin; Tobor-Kapłon, Marysia; Witters, Hilda; Belanger, Scott; Benfenati, Emilio; Creton, Stuart; Cronin, Mark T D; Eggen, Rik I L; Embry, Michelle; Ekman, Drew; Gourmelon, Anne; Halder, Marlies; Hardy, Barry; Hartung, Thomas; Hubesch, Bruno; Jungmann, Dirk; Lampi, Mark A; Lee, Lucy; Léonard, Marc; Küster, Eberhard; Lillicrap, Adam; Luckenbach, Till; Murk, Albertinka J; Navas, José M; Peijnenburg, Willie; Repetto, Guillermo; Salinas, Edward; Schüürmann, Gerrit; Spielmann, Horst; Tollefsen, Knut Erik; Walter-Rohde, Susanne; Whale, Graham; Wheeler, James R; Winter, Matthew J

    2013-12-01

    Tests with vertebrates are an integral part of environmental hazard identification and risk assessment of chemicals, plant protection products, pharmaceuticals, biocides, feed additives and effluents. These tests raise ethical and economic concerns and are considered as inappropriate for assessing all of the substances and effluents that require regulatory testing. Hence, there is a strong demand for replacement, reduction and refinement strategies and methods. However, until now alternative approaches have only rarely been used in regulatory settings. This review provides an overview on current regulations of chemicals and the requirements for animal tests in environmental hazard and risk assessment. It aims to highlight the potential areas for alternative approaches in environmental hazard identification and risk assessment. Perspectives and limitations of alternative approaches to animal tests using vertebrates in environmental toxicology, i.e. mainly fish and amphibians, are discussed. Free access to existing (proprietary) animal test data, availability of validated alternative methods and a practical implementation of conceptual approaches such as the Adverse Outcome Pathways and Integrated Testing Strategies were identified as major requirements towards the successful development and implementation of alternative approaches. Although this article focusses on European regulations, its considerations and conclusions are of global relevance. PMID:24161465

  6. Drug delivery systems in domestic animal species.

    Science.gov (United States)

    Brayden, David J; Oudot, Emilie J M; Baird, Alan W

    2010-01-01

    Delivery of biologically active agents to animals is often perceived to be the poor relation of human drug delivery. Yet this field has a long and successful history of species-specific device and formulation development, ranging from simple approaches and devices used in production animals to more sophisticated formulations and approaches for a wide range of species. While several technologies using biodegradable polymers have been successfully marketed in a range of veterinary and human products, the transfer of delivery technologies has not been similarly applied across species. This may be due to a combination of specific technical requirements for use of devices in different species, inter-species pharmacokinetic, pharmacodynamic and physiological differences, and distinct market drivers for drug classes used in companion and food-producing animals. This chapter reviews selected commercialised and research-based parenteral and non-parenteral veterinary drug delivery technologies in selected domestic species. Emphasis is also placed on the impact of endogenous drug transporters on drug distribution characteristics in different species. In vitro models used to investigate carrier-dependent transport are reviewed. Species-specific expression of transporters in several tissues can account for inter-animal or inter-species pharmacokinetic variability, lack of predictability of drug efficacy, and potential drug-drug interactions. PMID:20204584

  7. Nuclear Materials Identification System Operational Manual

    Energy Technology Data Exchange (ETDEWEB)

    Chiang, L.G.

    2001-04-10

    This report describes the operation and setup of the Nuclear Materials Identification System (NMIS) with a {sup 252}Cf neutron source at the Oak Ridge Y-12 Plant. The components of the system are described with a description of the setup of the system along with an overview of the NMIS measurements for scanning, calibration, and confirmation of inventory items.

  8. Modeling, system identification, and control of ASTREX

    Science.gov (United States)

    Abhyankar, Nandu S.; Ramakrishnan, J.; Byun, K. W.; Das, A.; Cossey, Derek F.; Berg, J.

    1993-02-01

    The modeling, system identification and controller design aspects of the ASTREX precision space structure are presented in this work. Modeling of ASTREX is performed using NASTRAN, TREETOPS and I-DEAS. The models generated range from simple linear time-invariant models to nonlinear models used for large angle simulations. Identification in both the time and frequency domains are presented. The experimental set up and the results from the identification experiments are included. Finally, controller design for ASTREX is presented. Simulation results using this optimal controller demonstrate the controller performance. Finally the future directions and plans for the facility are addressed.

  9. On Markov parameters in system identification

    Science.gov (United States)

    Phan, Minh; Juang, Jer-Nan; Longman, Richard W.

    1991-01-01

    A detailed discussion of Markov parameters in system identification is given. Different forms of input-output representation of linear discrete-time systems are reviewed and discussed. Interpretation of sampled response data as Markov parameters is presented. Relations between the state-space model and particular linear difference models via the Markov parameters are formulated. A generalization of Markov parameters to observer and Kalman filter Markov parameters for system identification is explained. These extended Markov parameters play an important role in providing not only a state-space realization, but also an observer/Kalman filter for the system of interest.

  10. Animals

    International Nuclear Information System (INIS)

    The radionuclides of most concern with respect to contamination of animals after a nuclear accident are radioiodine, radiocaesium and radiostrontium (ICRP 30, 1979). Of the other significant anthropogenic radionuclides likely to be released in most accidents, only small proportions of that ingested will be absorbed in an animals gut, and the main animal products, milk and meat, will not normally be contaminated to a significant extent. Animal products will mostly be contaminated as a result of ingestion of contaminated feed and possibly, but to a much lesser extent, from inhalation (for radioiodine only). Direct external contamination of animals is of little or no consequence in human food production. Radioiodine and radiostrontium are important with respect to contamination of milk; radiocaesium contaminates both milk and meat. The physical and chemical form of a radionuclide can influence its absorption in the animal gut. For example, following the Chernobyl accident radiocaesium incorporated into vegetation by root uptake was more readily absorbed than that associated with the original deposit. The transfer of radiocaesium and radiostrontium to animals will be presented both as transfer coefficients and aggregated transfer coefficients. For most animal meat products, only radiocaesium is important as other radionuclides do not significantly contaminate muscle. Farm animal products are the most important foodstuff determining radiocaesium intake by the average consumer in the Nordic countries. The major potential source of radioiodine and radiostrontium to humans is milk and milk products. Of the different species, the smaller animals have the highest transfer of radiocaesium from fodder to meat and milk. (EG)

  11. Effects of Pronunciation Practice System Based on Personalized CG Animations of Mouth Movement Model

    Directory of Open Access Journals (Sweden)

    Kohei Arai

    2012-06-01

    Full Text Available Pronunciation practice system based on personalized Computer Graphics: CG animation of mouth movement model is proposed. The system enables a learner to practice pronunciation by looking at personalized CG animations of mouth movement model , and allows him/her to compare them with his/her own mouth movements. In order to evaluate the effectiveness of the system by using personalized CG animation of mouth movement model, Japanese vowel and consonant sounds were read by 8 infants before and after practicing with the proposed system, and their pronunciations were examined. Remarkable improvement on their pronunciations is confirmed through a comparison to their pronunciation without the proposed system based on identification test by subjective basis.

  12. Animal models for diseases of respiratory system

    Directory of Open Access Journals (Sweden)

    R. Adil

    2012-07-01

    Full Text Available Latest trends in understanding of respiratory diseases in human beings can be derived from thorough clinical studies of these diseases occurring in man, but conducting such studies in man is difficult in terms of experimental manipulation. In the last 2 decades, various types of experimental respiratory disease models has been developed and utilized by investigators, which have contributed a lot to the understanding of respiratory diseases in man, but only little investigation has been done on the naturally occurring pulmonary diseases of animals as potential models which could have added to our knowledge. There are certain selected examples of spontaneous pulmonary disease in animals that may serve as exploitable models for human chronic bronchitis, bronchiectasis, emphysema, interstitial lung disease, hypersensitivity pneumonitis, hyaline membrane disease, and bronchial asthma.

  13. System Identification A Frequency Domain Approach

    CERN Document Server

    Pintelon, Rik

    2012-01-01

    System identification is a general term used to describe mathematical tools and algorithms that build dynamical models from measured data. Used for prediction, control, physical interpretation, and the designing of any electrical systems, they are vital in the fields of electrical, mechanical, civil, and chemical engineering. Focusing mainly on frequency domain techniques, System Identification: A Frequency Domain Approach, Second Edition also studies in detail the similarities and differences with the classical time domain approach. It high??lights many of the important steps in the identi

  14. LPV Identification of a Heat Distribution System

    DEFF Research Database (Denmark)

    Trangbæk, K; Bendtsen, Jan Dimon

    2010-01-01

    This paper deals with incremental system identification of district heating systems to improve control performance. As long as various parameters, e.g. valve settings, are kept fixed, the dynamics of district heating systems can be approximated well by linear models; however, the dynamics change...... significantly when these parameters change. For this reason, we attempt to identify the system using linear parameter varying models. We demonstrate how the so-called ``Hansen Scheme," for linear time-invariant systems, can be employed for incremental identification of linear parameter varying systems as well....... The approach is tested on a laboratory setup emulating a district heating system, where local controllers regulate pumps connected to a common supply. Experiments show that cross-couplings in the system can indeed be identified in closed-loop operation....

  15. Nonlinear identification of power electronic systems

    OpenAIRE

    Chau, KT; Chan, CC

    1995-01-01

    This paper presents a new approach to modelling power electronic systems using nonlinear system identification. By employing the nonlinear autoregressive moving average with exogenous input (NARMAX) technique, the parametric model of power electronic systems can be derived from the time-domain data. This approach possesses some advantages over available circuit-oriented modelling approaches, such as no small-signal approximation, no circuit idealization and no detailed knowledge of system ope...

  16. Molecular identification and classification of Trichophyton mentagrophytes complex strains isolated from humans and selected animal species.

    Science.gov (United States)

    Ziółkowska, Grażyna; Nowakiewicz, Aneta; Gnat, Sebastian; Trościańczyk, Aleksandra; Zięba, Przemysław; Dziedzic, Barbara Majer

    2015-03-01

    Species differentiation within Trichophyton mentagrophytes complex group currently poses a major diagnostic challenge, with molecular methods increasingly supplementing classical identification based on the morphological and physiological properties of the fungi. Diagnostic and epidemiological research aimed at determining the source and means of transmission of dermatophytoses in both humans and animals requires not only species differentiation of isolates but also differentiation within species. The study was conducted on 24 isolates originating in humans and various animal species with clinical symptoms of dermatophytosis. The analysis included phenotypical identification methods and molecular methods: internal transcribed spacer sequencing and ITS-restriction fragment length polymorphism (RFLP) with multi-enzyme restriction. ITS sequence analysis identified the isolates to species - Trichophyton interdigitale, Arthroderma benhamiae and A. vanbreuseghemii, and ITS-RFLP detected six different genotypes. Genotypes I, II and III characterised strains belonging to A. benhamiae, genotype IV characterised the A. vanbreuseghemii strain, and genotypes V and VI occurred only within the species T. interdigitale. Strains isolated from guinea pigs were dominant within genotype I, while genotype II was found mainly in strains from foxes. Multi-enzyme restriction analysis of this region enables intraspecific differentiation, which may be useful in epidemiological research, particularly in determining the source of infections. PMID:25643744

  17. Optimized Experiment Design for Marine Systems Identification

    DEFF Research Database (Denmark)

    Blanke, M.; Knudsen, Morten

    1999-01-01

    Simulation of maneuvring and design of motion controls for marine systems require non-linear mathematical models, which often have more than one-hundred parameters. Model identification is hence an extremely difficult task. This paper discusses experiment design for marine systems identification...... and proposes a sensitivity approach to solve the practical experiment design problem. The applicability of the sensitivity approach is demonstrated on a large non-linear model of surge, sway, roll and yaw of a ship. The use of the method is illustrated for a container-ship where both model and full...

  18. Fuzzy system identification via chaotic ant swarm

    International Nuclear Information System (INIS)

    In this paper, we introduce a chaotic optimization method, called CAS (chaotic ant swarm), to solve the problem of designing a fuzzy system to identify dynamical systems. The position vector of each ant in the CAS algorithm corresponds to the parameter vector of the selected fuzzy system. At each learning time step, the CAS algorithm is iterated to give the optimal parameters of fuzzy systems based on the fitness theory. Then the corresponding CAS-designed fuzzy system is built and applied to the identification of the unknown nonlinear dynamical systems. Numerical simulation results are provided to show the effectiveness and feasibility of the developed CAS-designed fuzzy system.

  19. Bounding approaches to system identification

    CERN Document Server

    Norton, John; Piet-Lahanier, Hélène; Walter, Éric

    1996-01-01

    In response to the growing interest in bounding error approaches, the editors of this volume offer the first collection of papers to describe advances in techniques and applications of bounding of the parameters, or state variables, of uncertain dynamical systems. Contributors explore the application of the bounding approach as an alternative to the probabilistic analysis of such systems, relating its importance to robust control-system design.

  20. National equipment of intraoperatory gamma detection in the identification of sentinel lymph node in animal model

    Energy Technology Data Exchange (ETDEWEB)

    Santos, Paula Cristina Fada dos [Universidade Federal de Sao Paulo (UNIFESP-EPM), Sao Paulo, SP (Brazil). Post-graduate Program on Plastic Surgery], e-mail: ppfada@hotmail.com; Santos, Ivan Dunshee de Abranches Oliveira [Universidade Federal de Sao Paulo (UNIFESP-EPM), Sao Paulo, SP (Brazil). Dept. of Surgery; Nahas, Fabio Xerfan; Ferreira, Lydia Masako [Universidade Federal de Sao Paulo (UNIFESP-EPM), Sao Paulo, SP (Brazil). Dept. of Surgery. Div. of Plastic Sugery; Oliveira Filho, Renato Santos de [University of Sao Paulo (USP), SP (Brazil). Faculty of Medicine

    2009-07-01

    Purpose: To investigate a national equipment of intraoperatory gamma detection in the identification of sentinel lymph node. Methods: Thirty young adult male rats were used. After anesthetized, animals were divided into two groups of 15 animals each. Animals from group A received dextram 500 - Tc{sup 99} radiopharmaceutical and patent blue V and those from group B received only patent blue V to map the lymphatic drainage. The presence of radiation in the background area, in the area of injection and of the ex vivo sentinel lymph node of group A were measured. After the exeresis, each lymph node in group A and in group B was mixed forming a new random sequence and the radioactive reading of each lymph node was carried out, using both pieces of equipment. Results: The hottest sentinel lymph node was identified by the national equipment when radiation was measured in the area of lymphatic drainage after the Dextran 500 was injected. Also, the ex vivo sentinel lymph node. The national equipment has also detected radiation in the lymph nodes that had not received radiopharmaceutical, leading to false positive, checked by the application of Mann-Whitney tests and Student's paired t-tests. The Cronbach alpha has shown high internal consistency of data 0,9416. Conclusions: The national equipment of intraoperatory gamma detection identifies the LS and showed false positives LS and needs improvement. (author)

  1. National equipment of intraoperatory gamma detection in the identification of sentinel lymph node in animal model

    International Nuclear Information System (INIS)

    Purpose: To investigate a national equipment of intraoperatory gamma detection in the identification of sentinel lymph node. Methods: Thirty young adult male rats were used. After anesthetized, animals were divided into two groups of 15 animals each. Animals from group A received dextram 500 - Tc99 radiopharmaceutical and patent blue V and those from group B received only patent blue V to map the lymphatic drainage. The presence of radiation in the background area, in the area of injection and of the ex vivo sentinel lymph node of group A were measured. After the exeresis, each lymph node in group A and in group B was mixed forming a new random sequence and the radioactive reading of each lymph node was carried out, using both pieces of equipment. Results: The hottest sentinel lymph node was identified by the national equipment when radiation was measured in the area of lymphatic drainage after the Dextran 500 was injected. Also, the ex vivo sentinel lymph node. The national equipment has also detected radiation in the lymph nodes that had not received radiopharmaceutical, leading to false positive, checked by the application of Mann-Whitney tests and Student's paired t-tests. The Cronbach alpha has shown high internal consistency of data 0,9416. Conclusions: The national equipment of intraoperatory gamma detection identifies the LS and showed false positives LS and needs improvement. (author)

  2. A Rapid and Simple LC-MS Method Using Collagen Marker Peptides for Identification of the Animal Source of Leather.

    Science.gov (United States)

    Kumazawa, Yuki; Taga, Yuki; Iwai, Kenji; Koyama, Yoh-Ichi

    2016-08-01

    Identification of the animal source of leather is difficult using traditional methods, including microscopic observation and PCR. In the present study, a LC-MS method was developed for detecting interspecies differences in the amino acid sequence of type I collagen, which is a major component of leather, among six animals (cattle, horse, pig, sheep, goat, and deer). After a dechroming procedure and trypsin digestion, six tryptic peptides of type I collagen were monitored by LC-MS in multiple reaction monitoring mode for the animal source identification using the patterns of the presence or absence of the marker peptides. We analyzed commercial leathers from various production areas using this method, and found some leathers in which the commercial label disagreed with the identified animal source. Our method enabled rapid and simple leather certification and could be applied to other animals whether or not their collagen sequences are available in public databases. PMID:27397145

  3. Tri-modality small animal imaging system

    Energy Technology Data Exchange (ETDEWEB)

    Kundu, B.K.; Stolin, A.V.; Pole, J.; Baumgart, L.; Fontaine, M.; Wojcik, R.; Kross, B.; Zorn, C.; Majewski, S.; Williams, M.B.

    2006-02-01

    Our group is developing a scanner that combines x-ray, single gamma, and optical imaging on the same rotating gantry. Two functional modalities (SPECT and optical) are included because they have different strengths and weaknesses in terms of spatial and temporal decay lengths in the context of in vivo imaging, and because of the recent advent of multiple reporter gene constructs. The effect of attenuation by biological tissue on the detected intensity of the emitted signal was measured for both gamma and optical imaging. Attenuation by biological tissue was quantified for both the bioluminescent emission of luciferace and for the emission light of the near infrared fluorophore cyanine 5.5, using a fixed excitation light intensity. Experiments were performed to test the feasibility of using either single gamma or x-ray imaging to make depth-dependent corrections to the measured optical signal. Our results suggest that significant improvements in quantitation of optical emission are possible using straightforward correction techniques based on information from other modalities. Development of an integrated scanner in which data from each modality are obtained with the animal in a common configuration will greatly simplify this process.

  4. Parametric uncertain identification of a robotic system

    Science.gov (United States)

    Angel, L.; Viola, J.; Hernández, C.

    2016-07-01

    This paper presents the parametric uncertainties identification of a robotic system of one degree of freedom. A MSC-ADAMS / MATLAB co-simulation model was built to simulate the uncertainties that affect the robotic system. For a desired trajectory, a set of dynamic models of the system was identified in presence of variations in the mass, length and friction of the system employing least squares method. Using the input-output linearization technique a linearized model plant was defined. Finally, the maximum multiplicative uncertainty of the system was modelled giving the controller desired design conditions to achieve a robust stability and performance of the closed loop system.

  5. Optical disk uses in criminal identification systems

    Science.gov (United States)

    Sypherd, Allen D.

    1990-08-01

    A significant advancement in law enforcement tools has been made possible by the rapid and innovative development of electronic imaging for criminal identification systems. In particular, development of optical disks capable of high-capacity and random-access storage has provided a unique marriage of application and technology. Fast random access to any record, non-destructive reading of stored images, electronic sorting and transmission of images and an accepted legal basis for evidence are a few of the advantages derived from optical disk technology. This paper discusses the application of optical disk technology to both Automated Fingerprint Identification Systems (AFIS) and Automated Mugshot Retrieval Systems (AMRS). The following topics are addressed in light of AFIS and AMRS user requirements and system capabilities: Write once vs. rewritable, gray level and storage requirements, multi-volume library systems, data organization and capacity trends.

  6. Ultra-Wideband Radio Frequency Identification Systems

    CERN Document Server

    Nekoogar, Faranak

    2012-01-01

    Ultra-Wideband Radio Frequency Identification Systems describes the essentials of radio frequency identification systems as well as their target markets. The authors provide a study of commercially available RFID systems and characterizes their performance in terms of read range and reliability in the presence of conductive and dielectric materials. The capabilities and limitations of some commercial RFID systems are reported followed by comprehensive discussions of the advantages and challenges of using ultra-wideband technology for tag/reader communications. The book presents practical aspects of UWB RFID system such as: pulse generation, remote powering, tag and reader antenna design, as well as special applications of  UWB RFIDs in a simple and easy-to-understand language.

  7. DIRC, the particle identification system for BABAR

    International Nuclear Information System (INIS)

    The DIRC, a novel type of Cherenkov ring imaging device, is the primary hadronic particle identification system for the BABAR detector at the asymmetric B-factory, PEP-II at SLAC. BABAR began taking data with colliding beams mode in late spring 1999. This paper describes the performance of the DIRC during the first 16 months of operation. (author)

  8. Improved System Identification Approach Using Wavelet Networks

    Institute of Scientific and Technical Information of China (English)

    石宏理; 蔡远利; 邱祖廉

    2005-01-01

    A new approach is proposed to improve the general identification algorithm of multidimensional systems using wavelet networks. The general algorithm involves mapping vector input into its norm to avoid problem of dimensionality in construction multidimensional wavelet basis functions. Thus, the basis functions are spherically symmetric without direction selectivity. In order to restore the direction selectivity, the improved approach weights the input variables before mapping it into a scalar form. The weights can be obtained using universal optimization algorithms. Generally, only local optimal weights are obtained. Even so, performance of identification can be improved.

  9. On System Identification of Wind Turbines

    DEFF Research Database (Denmark)

    Kirkegaard, Poul Henning; Perisic, Nevena; Pedersen, B.J.

    operational model analysis (OMA) methodology can provide accurate estimates of the natural frequencies, damping ratios and mode shapes of the systems as long as the measurements have a low noise to signal ratio. However, in order to take information about the wind turbine into account a grey...... case of black-box identification no "physical" model structure is assumed and a large number of parameters have to be defined by the identification techniques. For the identified black-box models, it is difficult to perform model analysis since the internal states are not known to the user. The...

  10. Light microscopy and molecular identification of Sarcocystis spp. in meat producing animals in Selangor, Malaysia.

    Science.gov (United States)

    Latif, B; Kannan Kutty, M; Muslim, A; Hussaini, J; Omar, E; Heo, C C; Rossle, N F; Abdullah, S; Kamarudin, M A; Zulkarnain, M A

    2015-09-01

    One thousand and forty-five tissue samples of skeletal muscles, tongue, heart, diaphragm and esophagus were collected from 209 animals (43 sheep, 89 goats and 77 cattle) from an abattoir in Selangor between February and October, 2013. Each sample was divided into three pieces with each piece measuring 2-3 mm3. Each piece was then squeezed between two glass slides and examined microscopically at x 10 magnification for the presence of sarcocystosis. Three positive samples from each animal species were then fixed in 10% formalin for histological processing. Seven positive samples collected from each animal species were preserved at -80°C or 90% ethanol for gene expression studies. Microsarcocysts were detected in 114 (54.5%) animals by light microscopy (LM). The infection rates in sheep, goat and cattle were 86, 61.8 and 28.6% respectively. The highest rate of infection was in the skeletal muscles of sheep (64.9%) and goats (63.6%) and in the heart of cattle (63.6%). The cysts were spindle to oval in shape and two stages were recognized, the peripheral metrocytes and centrally located banana-shaped bradyzoites. 18S rRNA gene expression studies confirmed the isolates from the sheep as S. ovicanis, goats as S. capracanis and cattle as S. bovicanis. This, to the best of our knowledge, is the first molecular identification of an isolate of S. ovicanis and S. capracanis in Malaysia. Further studies with electron microscopy (EM) are required in the future to compare the features of different types of Sarcocysts spp. PMID:26695204

  11. An efficient automatic firearm identification system

    Science.gov (United States)

    Chuan, Zun Liang; Liong, Choong-Yeun; Jemain, Abdul Aziz; Ghani, Nor Azura Md.

    2014-06-01

    Automatic firearm identification system (AFIS) is highly demanded in forensic ballistics to replace the traditional approach which uses comparison microscope and is relatively complex and time consuming. Thus, several AFIS have been developed for commercial and testing purposes. However, those AFIS are still unable to overcome some of the drawbacks of the traditional firearm identification approach. The goal of this study is to introduce another efficient and effective AFIS. A total of 747 firing pin impression images captured from five different pistols of same make and model are used to evaluate the proposed AFIS. It was demonstrated that the proposed AFIS is capable of producing firearm identification accuracy rate of over 95.0% with an execution time of less than 0.35 seconds per image.

  12. 76 FR 72897 - Privacy Act Systems of Records; APHIS Animal Health Surveillance and Monitoring System

    Science.gov (United States)

    2011-11-28

    ... Service Agency, APHIS' Wildlife Services, or from State veterinary health officials and animal testing... Animal and Plant Health Inspection Service Privacy Act Systems of Records; APHIS Animal Health Surveillance and Monitoring System AGENCY: Animal and Plant Health Inspection Service, USDA. ACTION: Notice...

  13. Animals

    Institute of Scientific and Technical Information of China (English)

    杨光

    2000-01-01

    The largest animal ever to live on the earth is the blue whale(蓝鲸)It weighs about 80 tons--more than 24 elephants. It is more than 30 metres long. A newborn baby whale weighs as much as a big elephant.

  14. A New Autom ated Fingerprint Identification System

    Institute of Scientific and Technical Information of China (English)

    沈学宁; 程民德; 等

    1989-01-01

    A new automated fingerpring identification system is proposed.In this system,based on some local properties of digital image,the shape and minutiae features of fingerprint can be extracted from the grey level image without binarizing and thinning.In query,a latent fingerprint can be matched with the filed fingerprints by shape and/or minutiae features.Matching by shape features is much faster than by minutiae.

  15. An image guided small animal stereotactic radiotherapy system

    Science.gov (United States)

    Sha, Hao; Udayakumar, Thirupandiyur S.; Johnson, Perry B.; Dogan, Nesrin; Pollack, Alan; Yang, Yidong

    2016-01-01

    Small animal radiotherapy studies should be performed preferably on irradiators capable of focal tumor irradiation and healthy tissue sparing. In this study, an image guided small animal arc radiation treatment system (iSMAART) was developed which can achieve highly precise radiation targeting through the utilization of onboard cone beam computed tomography (CBCT) guidance. The iSMAART employs a unique imaging and radiation geometry where animals are positioned upright. It consists of a stationary x-ray tube, a stationary flat panel detector, and a rotatable and translational animal stage. System performance was evaluated in regards to imaging, image guidance, animal positioning, and radiation targeting using phantoms and tumor bearing animals. The onboard CBCT achieved good signal, contrast, and sub-millimeter spatial resolution. The iodine contrast CBCT accurately delineated orthotopic prostate tumors. Animal positioning was evaluated with ∼0.3 mm vertical displacement along superior-inferior direction. The overall targeting precision was within 0.4 mm. Stereotactic radiation beams conformal to tumor targets can be precisely delivered from multiple angles surrounding the animal. The iSMAART allows radiobiology labs to utilize an image guided precision radiation technique that can focally irradiate tumors while sparing healthy tissues at an affordable cost. PMID:26958942

  16. An image guided small animal stereotactic radiotherapy system.

    Science.gov (United States)

    Sha, Hao; Udayakumar, Thirupandiyur S; Johnson, Perry B; Dogan, Nesrin; Pollack, Alan; Yang, Yidong

    2016-04-01

    Small animal radiotherapy studies should be performed preferably on irradiators capable of focal tumor irradiation and healthy tissue sparing. In this study, an image guided small animal arc radiation treatment system (iSMAART) was developed which can achieve highly precise radiation targeting through the utilization of onboard cone beam computed tomography (CBCT) guidance. The iSMAART employs a unique imaging and radiation geometry where animals are positioned upright. It consists of a stationary x-ray tube, a stationary flat panel detector, and a rotatable and translational animal stage. System performance was evaluated in regards to imaging, image guidance, animal positioning, and radiation targeting using phantoms and tumor bearing animals. The onboard CBCT achieved good signal, contrast, and sub-millimeter spatial resolution. The iodine contrast CBCT accurately delineated orthotopic prostate tumors. Animal positioning was evaluated with ~0.3 mm vertical displacement along superior-inferior direction. The overall targeting precision was within 0.4 mm. Stereotactic radiation beams conformal to tumor targets can be precisely delivered from multiple angles surrounding the animal. The iSMAART allows radiobiology labs to utilize an image guided precision radiation technique that can focally irradiate tumors while sparing healthy tissues at an affordable cost. PMID:26958942

  17. Component codification and identification systems

    International Nuclear Information System (INIS)

    The lecture covers the codification in power stations during the erection phase and commercial operation phase. A diagram gives a survey. There are three basic-codifications for application; 1) Kraftwerk-Kennzeichen-System (KKS) for marking each component in orientated systems, for marking electrical orientated positions in cubicals, switch gears etc. and for marking rooms in buildings; 2) Ordnungssystem (OS) for cost calculation and ordering; 3) Unterlagenarten-Schluessel (UAS) for letters, reports etc. and for documentation. The OS is developed on the principle of cost account number and is therefore close to the organization of each supplier and his special form of design and constrution. KKS has only to mark hardware. Therefore all German owners, consultants, authorities and suppliers develop KKS together and conform to it in DIN 407119. (ORU)

  18. Risk assessment of chemicals in food and diet: Hazard identification by methods of animal-based toxicology

    DEFF Research Database (Denmark)

    Barlow, S. M.; Greig, J. B.; Bridges, J. W.;

    2002-01-01

    the current state of the science of risk assessment of chemicals in food and diet, by consideration of the four stages of risk assessment, that is. hazard identification. hazard characterisation, exposure assessment and risk characterisation. The contribution of animal-based methods in toxicology to...... toxicological issues, on hazard identification for food chemicals, such as new measurement techniques, the use of transgenic animals, assessment of hormone balance and the possibilities for conducting studies in which common human diseases have been modelled. is also considered. (C) 2002 ILSI. Published by...... Elsevier Science Ltd. All rights reserved....

  19. Structural system identification: Structural dynamics model validation

    Energy Technology Data Exchange (ETDEWEB)

    Red-Horse, J.R.

    1997-04-01

    Structural system identification is concerned with the development of systematic procedures and tools for developing predictive analytical models based on a physical structure`s dynamic response characteristics. It is a multidisciplinary process that involves the ability (1) to define high fidelity physics-based analysis models, (2) to acquire accurate test-derived information for physical specimens using diagnostic experiments, (3) to validate the numerical simulation model by reconciling differences that inevitably exist between the analysis model and the experimental data, and (4) to quantify uncertainties in the final system models and subsequent numerical simulations. The goal of this project was to develop structural system identification techniques and software suitable for both research and production applications in code and model validation.

  20. Forage based animal production systems and sustainability, an invited keynote

    Directory of Open Access Journals (Sweden)

    Abdul Shakoor Chaudhry

    2008-07-01

    Full Text Available Forages are essential for the successful operation of animal production systems. This is more relevant to ruminants which are heavily dependant upon forages for their health and production in a cost-effective and sustainable manner. While forages are an economical source of nutrients for animal production, they also help conserve the soil integrity, water supply and air quality. Although the role of these forages for animal production could vary depending upon the regional preferences for the animal and forage species, climate and resources, their importance in the success of ruminant production is acknowledged. However with the increasing global human population and urbanisation, the sustainability of forage based animal production systems is sometimes questioned due to the interrelationship between animal production and the environment. It is therefore vital to examine the suitability of these systems for their place in the future to supply quality food which is safe for human consumption and available at a competitive price to the growing human population. Grassland and forage crops are recognised for their contribution to the environment, recreation and efficiency of meat and milk production,. To maintain sustainability, it is crucial that such farming systems remain profitable and environmentally friendly while producing nutritious foods of high economical value. Thus, it is pertinent to improve the nutritive value of grasses and other forage plants in order to enhance animal production to obtain quality food. It is also vital to develop new forages which are efficiently utilised and wasted less by involving efficient animals. A combination of forage legumes, fresh or conserved grasses, crop residues and other feeds could help develop an animal production system which is economically efficient, beneficial and viable. Also, it is crucial to use efficient animals, improved forage conservation methods, better manure handling, and minimum

  1. ANIMALS

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    Mammals(哺乳动物)Mammals are the world's most dominant(最占优势的)animal.They are extremely(非常)diverse(多种多样的)creatures(生物,动物)that include(包括)the biggest ever animal (the blue whale鲸,which eats up to 6 tons every day),the smallest(leaf-nosed bat小蹄蝠) and the laziest(sloth树獭,who spends 80% of their time sleeping).There are over 4,600 kinds of mammals and they live in very different environments(环境)—oceans(海洋),rivers,the jungle(丛林),deserts,and plains(平原).

  2. Model Identification and Validation for a Heating System using MATLAB System Identification Toolbox

    International Nuclear Information System (INIS)

    This paper proposed a systematic approach to select a mathematical model for an industrial heating system by adopting system identification techniques with the aim of fulfilling the design requirement for the controller. The model identification process will begin by collecting real measurement data samples with the aid of MATLAB system identification toolbox. The criteria for selecting the model that could validate model output with actual data will based upon: parametric identification technique, picking the best model structure with low order among ARX, ARMAX and BJ, and then applying model estimation and validation tests. Simulated results have shown that the BJ model has been best in providing good estimation and validation based upon performance criteria such as: final prediction error, loss function, best percentage of model fit, and co-relation analysis of residual for output

  3. Tecnologías actuales y emergentes para la identificación animal y su aplicación en la trazabilidad animal Current and emergent technologies for animal identification and their use in animal traceability

    Directory of Open Access Journals (Sweden)

    R Felmer

    2006-01-01

    y, a la vez, una oportunidad para que el productor obtenga un producto diferenciado y a un mejor precio. Así, muchas empresas del rubro han convertido esta preocupación en una gran oportunidad comercial.The use of labels for the identification of live animals and its products have been practiced for over 2000 years, being extensively used in Europe with the appearance of the first epidemic diseases. At present, the advances on crops and livestock genetic engineering, the appearance of new diseases related with food consumption (i.e. mad cow disease, E. coli 0157, etc., and the discovery of contaminants in the food chain have produced great concern among the consumers. This is why it is so important that producers provide consumers with a guarantee on the product quality, specially since they now demand to know origin and quality of the food. In international markets, new procedures based on the concept "from gate to plate" have been implemented through the food chain, in order to bring out trademarks and certified processes which guarantee the quality of the food that goes out in the market. As a result of this new consumer demand, the "traceability concept" in food has been gradually incorporated in our vocabulary and it is now one of the main concerns of the food industry. The traceability systems used to identify animals, monitor their movements and trace their products have considerably evolved over the last years. These systems must be convenient, easy to read, durable, and harmless. Many devices have been used pursuing this objective, such as tattoos, ear-tags, electronic chips, iris and retina identification and more recently, DNA fingerprinting and molecular markers. It has become important to harmonise approved systems in order to provide a better guarantee and to facilitate international trade of animals and their products. Today, traceability is an esssential requirement in terms of exporting high-value products to the global food markets providing the

  4. Using Artificial Intelligence Models in System Identification

    OpenAIRE

    Elshamy, Wesam

    2013-01-01

    Artificial Intelligence (AI) techniques are known for its ability in tackling problems found to be unyielding to traditional mathematical methods. A recent addition to these techniques are the Computational Intelligence (CI) techniques which, in most cases, are nature or biologically inspired techniques. Different CI techniques found their way to many control engineering applications, including system identification, and the results obtained by many researchers were encouraging. However, most...

  5. System identification application using Hammerstein model

    Indian Academy of Sciences (India)

    SABAN OZER; HASAN ZORLU; SELCUK METE

    2016-06-01

    Generally, memoryless polynomial nonlinear model for nonlinear part and finite impulse response (FIR) model or infinite impulse response model for linear part are preferred in Hammerstein models in literature. In this paper, system identification applications of Hammerstein model that is cascade of nonlinear second order volterra and linear FIR model are studied. Recursive least square algorithm is used to identify the proposed Hammerstein model parameters. Furthermore, the results are compared to identify the success of proposed Hammerstein model and different types of models

  6. IDENTIFICATION FOR WIENER SYSTEMS WITH INTERNAL NOISE

    Institute of Scientific and Technical Information of China (English)

    Qijiang SONG; Hanfu CHEN

    2008-01-01

    This paper considers identification of Wiener systems for which the internal variables and output are corrupted by noises. When the internal noise is a sequence of independent and identically distributed (iid) Gaussian random variables, by the Weierstrass transformation (WT) the system under consideration turns to be a Wiener system without internal noise. The nonlinear part of the latter is nothing else than the WT of the nonlinear function of the original system, while the linear subsystem is the same for both systems before and after WT. Under reasonable conditions, the recursive identification algorithms are proposed for the transformed Wiener system, and strong consistency for the estimates is established. By using the inverse WT the nonparametric estimates for the nonlinearity of the original system are derived, and they are strongly consistent if the nonlinearity in the original system is a polynomial. Similar results also hold in the case where the internal noise is non-Gaussian. Simulation results are fully consistent with the theoretical analysis.

  7. Online Palmprint Identification System for Civil Applications

    Institute of Scientific and Technical Information of China (English)

    David Zhang; Guang-Ming Lu; Adams Wai-Kin Kong; Michael Wong

    2005-01-01

    In this paper, a novel biontetric identification system is presented to identify a person's identity by his/her palmprint. In contrast to existing palmprint systems for criminal applications, the proposed system targets at the civil applications, which require identifying a person in a large database with high accuracy in real-time. The system is constituted by four major components: User Interface Module, Acquisition Module, Recognition Module and External Module. More than 7,000 palmprint images have been collected to test the performance of the system. The system can identify 400 palms with a low false acceptance rate, 0.02%, and a high genuine acceptance rate, 98.83%. For verification, the system can operate at a false acceptance rate, 0.017% and a false rejection rate, 0.86%. The execution time for the whole process including image collection, preprocessing, feature extraction and matching is less than 1 second.

  8. Direction Identification System of Garlic Clove Based on Machine Vision

    OpenAIRE

    Gao Chi; Gao Hui

    2013-01-01

    In order to fulfill the requirements of seeding direction of garlic cloves, the paper proposed a research method of garlic clove direction identification based on machine vision, it expounded the theory of garlic clove direction identification, stated the arithmetic of it, designed the direction identification device of it, then developed the control system of garlic clove direction identification based on machine vision, at last tested the garlic clove direction identification, and the resul...

  9. Realization-Based System Identification with Applications

    Science.gov (United States)

    Miller, Daniel N.

    The identification of dynamic system behavior from experimentally measured or computationally simulated data is fundamental to the fields of control system design, modal analysis, and defect detection. In this dissertation, methods for system identification are developed based on classical linear system realization theory. The common methods of state-space realization from a measured, discrete-time impulse response are generalized to the following additional types of experiments: measured step responses, arbitrary sets of input-output data, and estimated cross-covariance functions of input-output data. The methods are particularly well suited to systems with large input and/or output dimension, for which classical system identification methods based on maximum likelihood estimation may fail due to their reliance on non-convex optimizations. The realization-based methods by themselves require a finite number of linear algebraic operations. Because these methods implicitly optimize cost functions that are linear in state-space parameters, they may be augmented with convex constraints to form convex optimization problems. Several common behavioral constraints are translated into eigenvalue constraints stated as linear matrix inequalities, and the realization-based methods are converted into semidefinite programming problems. Some additional constraints on transient and steady-state behavior are derived and incorporated into a quadratic program, which is solved following the semidefinite program. The newly developed realization-based methods are applied to two experiments: the aeroelastic response of a fighter aircraft and the transient thermal behavior of a light-emitting diode. The algorithms for each experiment are implemented in two freely available software packages.

  10. Method and system for estimating herbage uptake of an animal

    DEFF Research Database (Denmark)

    2011-01-01

    The invention relates to a method and a system for estimating the feeding value or the amount of consumed herbage of grazing animals. The estimated herbage uptake is based on measured and possibly estimated data which is supplied as input data to a mathematical model. Measured input data may be...... acceleration data of the head of the animal, the length of herbage and the quality, i.e. feeding value, of herbage. Estimated input data may be the frequency of the reciprocate head motion of the animal and the in-active or active grazing status of the cow. Alternatively, the estimated data may be determined...... by the model and possibly provided as output data. Measurements may be obtained by a sensor module carried by the animal and the measurements may be wirelessly transmitted from the sensor module to a receiver, possibly via relay transceivers....

  11. Near Field UHF RFID Antenna System Enabling the Tracking of Small Laboratory Animals

    Directory of Open Access Journals (Sweden)

    Luca Catarinucci

    2013-01-01

    Full Text Available Radio frequency identification (RFID technology is more and more adopted in a wide range of applicative scenarios. In many cases, such as the tracking of small-size living animals for behaviour analysis purposes, the straightforward use of commercial solutions does not ensure adequate performance. Consequently, both RFID hardware and the control software should be tailored for the particular application. In this work, a novel RFID-based approach enabling an effective localization and tracking of small-sized laboratory animals is proposed. It is mainly based on a UHF Near Field RFID multiantenna system, to be placed under the animals’ cage, and able to rigorously identify the NF RFID tags implanted in laboratory animals (e.g., mice. Once the requirements of the reader antenna have been individuated, the antenna system has been designed and realized. Moreover, an algorithm based on the measured Received Signal Strength Indication (RSSI aiming at removing potential ambiguities in data captured by the multiantenna system has been developed and integrated. The animal tracking system has been largely tested on phantom mice in order to verify its ability to precisely localize each subject and to reconstruct its path. The achieved and discussed results demonstrate the effectiveness of the proposed tracking system.

  12. Televison assessment and identification system for the plutonium protection system

    Energy Technology Data Exchange (ETDEWEB)

    Greenwoll, D.A.

    1979-02-01

    This report covers the selection, description, and use of the components comprising the Television Assessment and Identification System in the Hanford Plutonium Protection System. This work was sponsored by the Department of Energy/Office of Safeguards and Security (DOE/OSS) as part of the overall Sandia Fixed Facility Physical Protection Program.

  13. Identification of New Delhi metallo-β-lactamase 1 in Acinetobacter lwoffii of food animal origin.

    Directory of Open Access Journals (Sweden)

    Yang Wang

    Full Text Available BACKGROUND: To investigate the presence of metallo-β-lactamase (MBL genes and the genetic environment of the New Delhi metallo-β-lactamase gene bla(NDM-1 in bacteria of food animal origin. METHODOLOGY/PRINCIPAL FINDINGS: Gram-negative bacteria with low susceptibility to imipenem (MIC>8 µg/mL were isolated from swab samples collected from 15 animal farms and one slaughterhouse in eastern China. These bacteria were selected for phenotypic and molecular detection of known MBL genes and antimicrobial susceptibility testing. For the bla(NDM-1 positive isolate, conjugation and transformation experiments were carried out to assess plasmid transfer. Southern blotting was conducted to localize the bla(NDM-1 genes, and DNA sequencing was performed to determine the sequences of bla(NDM-1 and the flanking genes. In total, nine gram-negative bacteria of four different species presented a MBL phenotype. bla(NDM-1 was identified on a mobile plasmid named pAL-01 in an Acinetobacter lwoffii isolate of chicken origin. Transfer of pAL-01 from this isolate to E. coli J53 and JM109 resulted in resistance to multiple β-lactams. Sequence analysis revealed that the bla(NDM-1 gene is attached to an intact insertion element ISAba125, whose right inverted repeat (IR-R overlaps with the promoter sequence of bla(NDM-1. Thus, insertion of ISAba125 likely enhances the expression of bla(NDM-1. CONCLUSION: The identification of a bla(NDM-1- carrying strain of A. lwoffii in chickens suggests the potential for zoonotic transmission of bla(NDM-1 and has important implications for food safety.

  14. Prevalence of streptogramin resistance in enterococci from animals: Identification of vatD from animal sources in the United States

    Science.gov (United States)

    There is considerable debate over the use of virginiamycin in animals to the contribution of Quinupristin/Dalfopristin (Q/D) resistance in humans as both are of the streptogramin class of antimicrobials. In this study, the prevalence and mechanisms of streptogramin resistance in enterococci from an...

  15. Development of Metallic Coil Identification System Based on RFID

    OpenAIRE

    Kim, Myunsik; Song, Beobsung; Ju, Daegeun; Choi, Eunjung; Cho, Byunglok

    2010-01-01

    This paper describes RFID based metal products identification technique for SCM of iron and steel industry. Specially, the coil identification system is developed. To cope with the falling off the tag identification performance affected by neighbouring metallic objects, the tag attachment method based on flagtag is proposed and the reader antenna packaging technique is developed to improve the performance of target coil identification. A Crane equipped with the developed system can detect the...

  16. Proteomic Identification of Altered Cerebral Proteins in the Complex Regional Pain Syndrome Animal Model

    Directory of Open Access Journals (Sweden)

    Francis Sahngun Nahm

    2014-01-01

    Full Text Available Background. Complex regional pain syndrome (CRPS is a rare but debilitating pain disorder. Although the exact pathophysiology of CRPS is not fully understood, central and peripheral mechanisms might be involved in the development of this disorder. To reveal the central mechanism of CRPS, we conducted a proteomic analysis of rat cerebrum using the chronic postischemia pain (CPIP model, a novel experimental model of CRPS. Materials and Methods. After generating the CPIP animal model, we performed a proteomic analysis of the rat cerebrum using a multidimensional protein identification technology, and screened the proteins differentially expressed between the CPIP and control groups. Results. A total of 155 proteins were differentially expressed between the CPIP and control groups: 125 increased and 30 decreased; expressions of proteins related to cell signaling, synaptic plasticity, regulation of cell proliferation, and cytoskeletal formation were increased in the CPIP group. However, proenkephalin A, cereblon, and neuroserpin were decreased in CPIP group. Conclusion. Altered expression of cerebral proteins in the CPIP model indicates cerebral involvement in the pathogenesis of CRPS. Further study is required to elucidate the roles of these proteins in the development and maintenance of CRPS.

  17. Experimental strategies for the identification and characterization of adhesive proteins in animals: a review.

    Science.gov (United States)

    Hennebert, Elise; Maldonado, Barbara; Ladurner, Peter; Flammang, Patrick; Santos, Romana

    2015-02-01

    Adhesive secretions occur in both aquatic and terrestrial animals, in which they perform diverse functions. Biological adhesives can therefore be remarkably complex and involve a large range of components with different functions and interactions. However, being mainly protein based, biological adhesives can be characterized by classical molecular methods. This review compiles experimental strategies that were successfully used to identify, characterize and obtain the full-length sequence of adhesive proteins from nine biological models: echinoderms, barnacles, tubeworms, mussels, sticklebacks, slugs, velvet worms, spiders and ticks. A brief description and practical examples are given for a variety of tools used to study adhesive molecules at different levels from genes to secreted proteins. In most studies, proteins, extracted from secreted materials or from adhesive organs, are analysed for the presence of post-translational modifications and submitted to peptide sequencing. The peptide sequences are then used directly for a BLAST search in genomic or transcriptomic databases, or to design degenerate primers to perform RT-PCR, both allowing the recovery of the sequence of the cDNA coding for the investigated protein. These sequences can then be used for functional validation and recombinant production. In recent years, the dual proteomic and transcriptomic approach has emerged as the best way leading to the identification of novel adhesive proteins and retrieval of their complete sequences. PMID:25657842

  18. A Real-time Monitoring System for Programming Education using a Generator of Program Animation Systems

    OpenAIRE

    Youzou Miyadera; Kunimi Kurasawa; Shoichi Nakamura; Nobuyoshi Yonezawa; Setsuo Yokoyama

    2007-01-01

    We have developed a meta-system that generates program animation systems. The generated animation systems visually display changes in program actions and help students (novice programmers) understand them. The animation systems also accumulate historical records of the students’ operations as they execute a program step by step while trying to understand it. By analyzing accumulated records, the meta-system pinpoints common areas of dif- ficulty and their causes for the lecturer. To develop t...

  19. Linear System Identification via Atomic Norm Regularization

    CERN Document Server

    Shah, Parikshit; Tang, Gongguo; Recht, Benjamin

    2012-01-01

    This paper proposes a new algorithm for linear system identification from noisy measurements. The proposed algorithm balances a data fidelity term with a norm induced by the set of single pole filters. We pose a convex optimization problem that approximately solves the atomic norm minimization problem and identifies the unknown system from noisy linear measurements. This problem can be solved efficiently with standard, freely available software. We provide rigorous statistical guarantees that explicitly bound the estimation error (in the H_2-norm) in terms of the stability radius, the Hankel singular values of the true system and the number of measurements. These results in turn yield complexity bounds and asymptotic consistency. We provide numerical experiments demonstrating the efficacy of our method for estimating linear systems from a variety of linear measurements.

  20. Incremental Closed-loop Identification of Linear Parameter Varying Systems

    DEFF Research Database (Denmark)

    Bendtsen, Jan Dimon; Trangbæk, Klaus

    , closed-loop system identification is more difficult than open-loop identification. In this paper we prove that the so-called Hansen Scheme, a technique known from linear time-invariant systems theory for transforming closed-loop system identification problems into open-loop-like problems, can be extended......This paper deals with system identification for control of linear parameter varying systems. In practical applications, it is often important to be able to identify small plant changes in an incremental manner without shutting down the system and/or disconnecting the controller; unfortunately...... to accommodate linear parameter varying systems as well....

  1. System Identification, Environmental Modelling, and Control System Design

    CERN Document Server

    Garnier, Hugues

    2012-01-01

    System Identification, Environmetric Modelling, and Control Systems Design is dedicated to Professor Peter Young on the occasion of his seventieth birthday. Professor Young has been a pioneer in systems and control, and over the past 45 years he has influenced many developments in this field. This volume is comprised of a collection of contributions by leading experts in system identification, time-series analysis, environmetric modelling and control system design – modern research in topics that reflect important areas of interest in Professor Young’s research career. Recent theoretical developments in and relevant applications of these areas are explored treating the various subjects broadly and in depth. The authoritative and up-to-date research presented here will be of interest to academic researcher in control and disciplines related to environmental research, particularly those to with water systems. The tutorial style in which many of the contributions are composed also makes the book suitable as ...

  2. Cost-efficiency of animal welfare in broiler production systems

    NARCIS (Netherlands)

    Gocsik, Éva; Brooshooft, Suzanne D.; Jong, de Ingrid C.; Saatkamp, Helmut W.

    2016-01-01

    Broiler producers operate in a highly competitive and cost-price driven environment. In addition, in recent years the societal pressure to improve animal welfare (AW) in broiler production systems is increasing. Hence, from an economic and decision making point of view, the cost-efficiency of imp

  3. Computed tomography of the central nervous system in small animals

    International Nuclear Information System (INIS)

    With computed tomography in 44 small animals some well defined anatomical structures and pathological processes of the central nervous system are described. Computed tomography is not only necessary for the diagnosis of tumors; malformations, inflammatory, degenerative and vascular diseases and traumas are also visible

  4. Chemical detection, identification, and analysis system

    International Nuclear Information System (INIS)

    The chemical detection, identification, and analysis system (CDIAS) has three major goals. The first is to display safety information regarding chemical environment before personnel entry. The second is to archive personnel exposure to the environment. Third, the system assists users in identifying the stage of a chemical process in progress and suggests safety precautions associated with that process. In addition to these major goals, the system must be sufficiently compact to provide transportability, and it must be extremely simple to use in order to keep user interaction at a minimum. The system created to meet these goals includes several pieces of hardware and the integration of four software packages. The hardware consists of a low-oxygen, carbon monoxide, explosives, and hydrogen sulfide detector; an ion mobility spectrometer for airborne vapor detection; and a COMPAQ 386/20 portable computer. The software modules are a graphics kernel, an expert system shell, a data-base management system, and an interface management system. A supervisory module developed using the interface management system coordinates the interaction of the other software components. The system determines the safety of the environment using conventional data acquisition and analysis techniques. The low-oxygen, carbon monoxide, hydrogen sulfide, explosives, and vapor detectors are monitored for hazardous levels, and warnings are issued accordingly

  5. Method and system for estimating herbage uptake of an animal

    OpenAIRE

    S. Nadimi, Esmaeil; Jørgensen, Rasmus Nyholm; Oudshoorn, Frank Willem

    2011-01-01

    The invention relates to a method and a system for estimating the feeding value or the amount of consumed herbage of grazing animals. The estimated herbage uptake is based on measured and possibly estimated data which is supplied as input data to a mathematical model. Measured input data may be acceleration data of the head of the animal, the length of herbage and the quality, i.e. feeding value, of herbage. Estimated input data may be the frequency of the reciprocate head motion of the anima...

  6. Nuclear reactors transients identification and classification system

    International Nuclear Information System (INIS)

    This work describes the study and test of a system capable to identify and classify transients in thermo-hydraulic systems, using a neural network technique of the self-organizing maps (SOM) type, with the objective of implanting it on the new generations of nuclear reactors. The technique developed in this work consists on the use of multiple networks to do the classification and identification of the transient states, being each network a specialist at one respective transient of the system, that compete with each other using the quantization error, that is a measure given by this type of neural network. This technique showed very promising characteristics that allow the development of new functionalities in future projects. One of these characteristics consists on the potential of each network, besides responding what transient is in course, could give additional information about that transient. (author)

  7. Biometric Identification System by Lip Shape

    Directory of Open Access Journals (Sweden)

    Shokhan M. H.

    2015-03-01

    Full Text Available Biometric authentication techniques are more consistent and efficient than conventional authentication techniques and can be used in monitoring, transaction authentication, information retrieval, access control, forensics, etc. Human-lip shape detection is an important criterion for many automated modern system in present day. Like computerized speech reading, face recognition etc. system can work more precisely if human-lip shape can detect accurately. There are many processes for detecting human-lip. This paper presents an approach for biometric identification system based on lips shapes recognition in low resolution images of human faces. The presented technique uses edge detection for detecting the region of a human-lip shape, we called it lip contour and colour filtering for noise reduction and enhancement of the desired recognition of lips. Also discusses advantages of this method, its use, and future development.

  8. Identification and Control of a Cylindrical Tank Based on System Identification Models

    Directory of Open Access Journals (Sweden)

    Mary Mol Paul

    2013-06-01

    Full Text Available Advancements in the process control industry has made difficulties in controlling processes which are highly complex in nature. System identification provides a better solution for this problem with the help of identification models. In this paper ARX,ARMAX,BJ and OE models were used for the identification of a cylindrical tank and Ziegler Nichols tuning method to develop the controller for controlling the level of the tank. The proposed method provides simple and accurate models and thereby improving the efficency of identification process. MATLAB and LABView softwares were used here for identification and controlling.

  9. Animal nutrition in a systems context - the way forward

    International Nuclear Information System (INIS)

    Full text: Secondary production (i.e. milk, meat, wool and eggs) in animal production systems is a function of complex interactions between animal potential and the environmental conditions (biotic and abiotic). A major factor limiting secondary production is animal nutrition. Obviously, in the absence of food, the animal will stop producing and eventually die; consequently, the investment in it, to that point, is lost. Supplying only enough nutrients to maintain the animal results in no productive output, and thus the marginal cost of production is infinite, i.e. animal input costs are incurred but no return is harvested. Provision of nutrients in excess of maintenance allows the animal to become productive thus generating a return on the investment. Animals differ in their nutrient requirements according to their inherent genetic potential and the desired level of production. There are multiple combinations of dietary ingredients that can meet an animal's nutrient requirements, which create variation in dietary costs when food resources are finite in supply. Optimization algorithms can be utilized to solve for maximum production or economic return given a set of constraints. For animals, these constraints include nutrient requirements and the availability and accessibility of food supplies. Temporal fluctuations of abiotic environmental conditions may directly impact key components of the primary production systems. For example seasonal drought diminishes and changes the seasonal pattern of herbage growth, altering or limiting the nutrient availability from local sources such as pasture. Thus, it is important that animal performance models are capable of accurately predicting secondary production responses to varying and dynamic feed inputs. The accuracy and precision of current nutrient requirement models for animals has improved over time. Although static in form, these models can and have been utilized to predict secondary production from a set of inputs

  10. Seed dispersal by animals: exact identification of source trees with endocarp DNA microsatellites.

    Science.gov (United States)

    Godoy, J A; Jordano, P

    2001-09-01

    A long-standing challenge in studies of seed dispersal by animal frugivores has been the characterization of the spatial relationships between dispersed seeds and the maternal plants, i.e. the seed shadow. The difficulties to track unambiguously the origin of frugivore-dispersed seeds in natural communities has been considered an unavoidable limitation of the research field and precluded a robust analysis of the direct consequences of zoochory. Here we report that the multilocus genotype at simple sequence repeat (SSR; microsatellite) loci of the woody endocarp, a tissue of maternal origin, provides an unequivocal genetic fingerprint of the source tree. By comparing the endocarp genotype against the complete set of genotypes of reproductive trees in the population, we could unambiguously identify the source tree for 82.1% of the seeds collected in seed traps and hypothesize that the remaining 17.9% of sampled seeds come from other populations. Identification of the source tree for Prunus mahaleb seeds dispersed by frugivores revealed a marked heterogeneity in the genetic composition of the seed rain in different microhabitats, with a range of 1-5 distinct maternal trees contributing seeds to a particular landscape patch. Within-population dispersal distances ranged between 0 and 316 m, with up to 62% of the seeds delivered within 15 m of the source trees. Long distance dispersal events, detected by the exclusion of all reproductive trees in the population, accounted for up to 17.9% of the seeds sampled. Our results indicate strong distance limitation of seed delivery combined with infrequent long-distance dispersal events, extreme heterogeneity in the landscape pattern of genetic makeup, and a marked mosaic of multiple parentage for the seeds delivered to a particular patch. PMID:11555269

  11. Research of internet worm warning system based on system identification

    Institute of Scientific and Technical Information of China (English)

    Tao ZHOU; Guanzhong DAI; Huimin YE

    2006-01-01

    The frequent explosion of Internet worms has been one of the most serious problems in cyberspace security.In this paper, by analyzing the worm's propagation model, we propose a new worm warning system based on the method of system identification, and use recursive least squares algorithm to estimate the worm's infection rate. The simulation result shows the method we adopted is an efficient way to conduct Internet worm warning.

  12. Nordic-Baltic Student Teachers' Identification of and Interest in Plant and Animal Species: The Importance of Species Identification and Biodiversity for Sustainable Development

    Science.gov (United States)

    Palmberg, Irmeli; Berg, Ida; Jeronen, Eila; Kärkkäinen, Sirpa; Norrgård-Sillanpää, Pia; Persson, Christel; Vilkonis, Rytis; Yli-Panula, Eija

    2015-10-01

    Knowledge of species, interest in nature, and nature experiences are the factors that best promote interest in and understanding of environmental issues, biodiversity and sustainable life. The aim of this study is to investigate how well student teachers identify common local species, their interest in and ideas about species identification, and their perceptions of the importance of species identification and biodiversity for sustainable development. Totally 456 student teachers for primary schools were tested using an identification test and a questionnaire consisting of fixed and open questions. A combination of quantitative and qualitative methods was used to get a more holistic view of students' level of knowledge and their preferred learning methods. The student teachers' ability to identify very common species was low, and only 3 % were able to identify most of the tested species. Experiential learning outdoors was suggested by the majority of students as the most efficient learning method, followed by experiential learning indoors, project work and experimental learning. They looked upon the identification of plants and animals as `important' or `very important' for citizens today and for sustainable development. Likewise, they looked upon biodiversity as `important' or `very important' for sustainable development. Our conclusion is that teaching and learning methods for identification and knowledge of species and for education of biodiversity and sustainable development should always include experiential and project-based methods in authentic environments.

  13. Source options for nuclear weapons identification system

    Energy Technology Data Exchange (ETDEWEB)

    Mihalczo, J.T.; Koehler, P.E.; Valentine, T.E.; Phillips, L.D.

    1995-07-01

    This report briefly presents the advantages and disadvantages of two timed sources of neutrons that can be used with the source-driven noise analysis method: (1) {sup 252}Cf in an ionization chamber and (2) an associated-particle sealed tube neutron generator (APSTNG). These sources can be used with frequency and time analysis methods for nuclear weapons identification, quality assurance in production, special nuclear materials assay, criticality safety, and provision of measured data for verification of neutron and gamma ray transport calculational methods. The advantages of {sup 252}Cf for a nuclear materials identification system are that it is simple, reliable, and small and that all source events are detected. The disadvantages are that it cannot be turned off, leads to small radiation doses in handling, and produces more than one neutron per fission event. The advantages of APSTNG are that it is directional, can be turned off, and has one particle per deuterium-tritium reaction. The disadvantages are that it is large and complicated compared to {sup 252}Cf.

  14. BEEtag: A Low-Cost, Image-Based Tracking System for the Study of Animal Behavior and Locomotion.

    Directory of Open Access Journals (Sweden)

    James D Crall

    Full Text Available A fundamental challenge common to studies of animal movement, behavior, and ecology is the collection of high-quality datasets on spatial positions of animals as they change through space and time. Recent innovations in tracking technology have allowed researchers to collect large and highly accurate datasets on animal spatiotemporal position while vastly decreasing the time and cost of collecting such data. One technique that is of particular relevance to the study of behavioral ecology involves tracking visual tags that can be uniquely identified in separate images or movie frames. These tags can be located within images that are visually complex, making them particularly well suited for longitudinal studies of animal behavior and movement in naturalistic environments. While several software packages have been developed that use computer vision to identify visual tags, these software packages are either (a not optimized for identification of single tags, which is generally of the most interest for biologists, or (b suffer from licensing issues, and therefore their use in the study of animal behavior has been limited. Here, we present BEEtag, an open-source, image-based tracking system in Matlab that allows for unique identification of individual animals or anatomical markers. The primary advantages of this system are that it (a independently identifies animals or marked points in each frame of a video, limiting error propagation, (b performs well in images with complex backgrounds, and (c is low-cost. To validate the use of this tracking system in animal behavior, we mark and track individual bumblebees (Bombus impatiens and recover individual patterns of space use and activity within the nest. Finally, we discuss the advantages and limitations of this software package and its application to the study of animal movement, behavior, and ecology.

  15. Toxoplasma gondii Infection in Animal-Friendly Pig Production Systems

    OpenAIRE

    Kijlstra, A.; Eissen, O.A.; Cornelissen, J.B.W.J.; Munniksma, K.; Eijck, I.A.J.M.; Kortbeek, T.

    2004-01-01

    PURPOSE. Consumption of undercooked pork meat products has been considered a major risk factor for contracting toxoplasmosis in humans. Indoor farming and improved hygiene have drastically reduced Toxoplasma infections in pigs over the past decades. Whether introduction of animal-friendly production systems will lead to a reemergence of Toxoplasma infections in pigs is not yet known. Investigating this possibility was the purpose of this study. METHODS. Blood was obtained from pigs raised...

  16. TDA: A new trainable trajectory formation system for facial animation

    OpenAIRE

    Govokhina, Oxana; Bailly, Gérard; Breton, Gaspard; Bagshaw, Paul

    2006-01-01

    A new trainable trajectory formation system - named TDA - for facial animation is here proposed that dissociates parametric spaces and methods for movement planning and execution. Movement planning is achieved by HMM-based trajectory formation. This module essentially plans configurations of lip geometry (aperture, spreading and protrusion). Movement execution is performed by concatenation of multi-represented diphones. This module is responsible for selecting and concatenating detailed facia...

  17. Animal models of systemic sclerosis: their utility and limitations

    OpenAIRE

    Artlett, Carol

    2014-01-01

    Carol M Artlett Department of Microbiology and Immunology, Drexel University College of Medicine, Philadelphia, PA, USA Abstract: Without doubt, animal models have provided significant insights into our understanding of the rheumatological diseases; however, no model has accurately replicated all aspects of any autoimmune disease. Recent years have seen a plethora of knockouts and transgenics that have contributed to our knowledge of the initiating events of systemic sclerosis, an autoimmune...

  18. Bioluminescent system for dynamic imaging of cell and animal behavior

    International Nuclear Information System (INIS)

    Highlights: ► We combined a yellow variant of GFP and firefly luciferase to make ffLuc-cp156. ► ffLuc-cp156 showed improved photon yield in cultured cells and transgenic mice. ► ffLuc-cp156 enabled video-rate bioluminescence imaging of freely-moving animals. ► ffLuc-cp156 mice enabled tracking real-time drug delivery in conscious animals. -- Abstract: The current utility of bioluminescence imaging is constrained by a low photon yield that limits temporal sensitivity. Here, we describe an imaging method that uses a chemiluminescent/fluorescent protein, ffLuc-cp156, which consists of a yellow variant of Aequorea GFP and firefly luciferase. We report an improvement in photon yield by over three orders of magnitude over current bioluminescent systems. We imaged cellular movement at high resolution including neuronal growth cones and microglial cell protrusions. Transgenic ffLuc-cp156 mice enabled video-rate bioluminescence imaging of freely moving animals, which may provide a reliable assay for drug distribution in behaving animals for pre-clinical studies.

  19. Bioluminescent system for dynamic imaging of cell and animal behavior

    Energy Technology Data Exchange (ETDEWEB)

    Hara-Miyauchi, Chikako [Department of Physiology, Keio University School of Medicine, Tokyo 160-8582 (Japan); Laboratory for Cell Function Dynamics, Brain Science Institute, RIKEN, Saitama 351-0198 (Japan); Department of Biophysics and Biochemistry, Graduate School of Health Care Sciences, Tokyo Medical and Dental University, Tokyo 113-8510 (Japan); Tsuji, Osahiko [Department of Physiology, Keio University School of Medicine, Tokyo 160-8582 (Japan); Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo 160-8582 (Japan); Hanyu, Aki [Division of Biochemistry, The Cancer Institute of the Japanese Foundation for Cancer Research, Tokyo 135-8550 (Japan); Okada, Seiji [Department of Advanced Medical Initiatives, Faculty of Medical Sciences, Kyushu University, Fukuoka 812-8582 (Japan); Yasuda, Akimasa [Department of Physiology, Keio University School of Medicine, Tokyo 160-8582 (Japan); Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo 160-8582 (Japan); Fukano, Takashi [Laboratory for Cell Function Dynamics, Brain Science Institute, RIKEN, Saitama 351-0198 (Japan); Akazawa, Chihiro [Department of Biophysics and Biochemistry, Graduate School of Health Care Sciences, Tokyo Medical and Dental University, Tokyo 113-8510 (Japan); Nakamura, Masaya [Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo 160-8582 (Japan); Imamura, Takeshi [Department of Molecular Medicine for Pathogenesis, Ehime University Graduate School of Medicine, Toon, Ehime 791-0295 (Japan); Core Research for Evolutional Science and Technology, The Japan Science and Technology Corporation, Tokyo 135-8550 (Japan); Matsuzaki, Yumi [Department of Physiology, Keio University School of Medicine, Tokyo 160-8582 (Japan); Okano, Hirotaka James, E-mail: hjokano@jikei.ac.jp [Department of Physiology, Keio University School of Medicine, Tokyo 160-8582 (Japan); Division of Regenerative Medicine Jikei University School of Medicine, Tokyo 150-8461 (Japan); and others

    2012-03-09

    Highlights: Black-Right-Pointing-Pointer We combined a yellow variant of GFP and firefly luciferase to make ffLuc-cp156. Black-Right-Pointing-Pointer ffLuc-cp156 showed improved photon yield in cultured cells and transgenic mice. Black-Right-Pointing-Pointer ffLuc-cp156 enabled video-rate bioluminescence imaging of freely-moving animals. Black-Right-Pointing-Pointer ffLuc-cp156 mice enabled tracking real-time drug delivery in conscious animals. -- Abstract: The current utility of bioluminescence imaging is constrained by a low photon yield that limits temporal sensitivity. Here, we describe an imaging method that uses a chemiluminescent/fluorescent protein, ffLuc-cp156, which consists of a yellow variant of Aequorea GFP and firefly luciferase. We report an improvement in photon yield by over three orders of magnitude over current bioluminescent systems. We imaged cellular movement at high resolution including neuronal growth cones and microglial cell protrusions. Transgenic ffLuc-cp156 mice enabled video-rate bioluminescence imaging of freely moving animals, which may provide a reliable assay for drug distribution in behaving animals for pre-clinical studies.

  20. Thermal Signature Identification System (TheSIS)

    Science.gov (United States)

    Merritt, Scott; Bean, Brian

    2015-01-01

    We characterize both nonlinear and high order linear responses of fiber-optic and optoelectronic components using spread spectrum temperature cycling methods. This Thermal Signature Identification System (TheSIS) provides much more detail than conventional narrowband or quasi-static temperature profiling methods. This detail allows us to match components more thoroughly, detect subtle reversible shifts in performance, and investigate the cause of instabilities or irreversible changes. In particular, we create parameterized models of athermal fiber Bragg gratings (FBGs), delay line interferometers (DLIs), and distributed feedback (DFB) lasers, then subject the alternative models to selection via the Akaike Information Criterion (AIC). Detailed pairing of components, e.g. FBGs, is accomplished by means of weighted distance metrics or norms, rather than on the basis of a single parameter, such as center wavelength.

  1. Practical Modeling and Comprehensive System Identification of a BLDC Motor

    Directory of Open Access Journals (Sweden)

    Changle Xiang

    2015-01-01

    Full Text Available The aim of this paper is to outline all the steps in a rigorous and simple procedure for system identification of BLDC motor. A practical mathematical model for identification is derived. Frequency domain identification techniques and time domain estimation method are combined to obtain the unknown parameters. The methods in time domain are founded on the least squares approximation method and a disturbance observer. Only the availability of experimental data for rotor speed and armature current are required for identification. The proposed identification method is systematically investigated, and the final identified model is validated by experimental results performed on a typical BLDC motor in UAV.

  2. STUDY ON MULTIMEDIA ANIMATION SYSTEM OF ACUPOINT ANATOMY WITH FLASH

    Institute of Scientific and Technical Information of China (English)

    WANG Bin; LUO Zhi-yong; PU Yu-feng; HONG Hong; ZUO Zhi-xiong

    2006-01-01

    Mastering anatomic structures of acupoints is of active significance for avoiding blindly needling and preventing accidents of acupuncture and moxibustion. This multimedia animation system of acupoint anatomy adopts Flash software as developing tool and can dynamically display anatomic layers of needle insertion, with objectivity, convenient operation and English-Chinese control, higher reliability, easy to study and master anatomic knowledge of acupoint anatomy, increase teaching efficiency, and richen teaching ways. This system can be used as a teaching tool of acupuncture and moxibustion, a software of studying anatomy of acupoints and an adjuvant tool of medical workers in studying anatomy.

  3. IBCIS:Intelligent blood cell identification system

    Institute of Scientific and Technical Information of China (English)

    Adnan Khashman

    2008-01-01

    The analysis of blood cells in microscope images can provide useful information concerning the health of patients.There are three major blood cell types,namely,erythrocytes (red),leukocytes (white),and platelets.Manual classification is time consuming and susceptible to error due to the different morphological features of the cells.This paper presents an intelligent system that simulates a human visual inspection and classification of the three blood cell types.The proposed system comprises two phases:The image preprocessing phase where blood cell features are extracted via global pattern averaging,and the neural network arbitration phase where training is the first and then classification is carried out.Experimental results suggest that the proposed method performs well in identifying blood cell types regardless of their irregular shapes,sizes and orientation,thus providing a fast,simple and efficient rotational and scale invariant blood cell identification system which can be used in automating laboratory reporting.

  4. Lightweight autonomous chemical identification system (LACIS)

    Science.gov (United States)

    Lozos, George; Lin, Hai; Burch, Timothy

    2012-06-01

    Smiths Detection and Intelligent Optical Systems have developed prototypes for the Lightweight Autonomous Chemical Identification System (LACIS) for the US Department of Homeland Security. LACIS is to be a handheld detection system for Chemical Warfare Agents (CWAs) and Toxic Industrial Chemicals (TICs). LACIS is designed to have a low limit of detection and rapid response time for use by emergency responders and could allow determination of areas having dangerous concentration levels and if protective garments will be required. Procedures for protection of responders from hazardous materials incidents require the use of protective equipment until such time as the hazard can be assessed. Such accurate analysis can accelerate operations and increase effectiveness. LACIS is to be an improved point detector employing novel CBRNE detection modalities that includes a militaryproven ruggedized ion mobility spectrometer (IMS) with an array of electro-resistive sensors to extend the range of chemical threats detected in a single device. It uses a novel sensor data fusion and threat classification architecture to interpret the independent sensor responses and provide robust detection at low levels in complex backgrounds with minimal false alarms. The performance of LACIS prototypes have been characterized in independent third party laboratory tests at the Battelle Memorial Institute (BMI, Columbus, OH) and indoor and outdoor field tests at the Nevada National Security Site (NNSS). LACIS prototypes will be entering operational assessment by key government emergency response groups to determine its capabilities versus requirements.

  5. Algorithms for System Identification and Source Location.

    Science.gov (United States)

    Nehorai, Arye

    This thesis deals with several topics in least squares estimation and applications to source location. It begins with a derivation of a mapping between Wiener theory and Kalman filtering for nonstationary autoregressive moving average (ARMO) processes. Applying time domain analysis, connections are found between time-varying state space realizations and input-output impulse response by matrix fraction description (MFD). Using these connections, the whitening filters are derived by the two approaches, and the Kalman gain is expressed in terms of Wiener theory. Next, fast estimation algorithms are derived in a unified way as special cases of the Conjugate Direction Method. The fast algorithms included are the block Levinson, fast recursive least squares, ladder (or lattice) and fast Cholesky algorithms. The results give a novel derivation and interpretation for all these methods, which are efficient alternatives to available recursive system identification algorithms. Multivariable identification algorithms are usually designed only for left MFD models. In this work, recursive multivariable identification algorithms are derived for right MFD models with diagonal denominator matrices. The algorithms are of prediction error and model reference type. Convergence analysis results obtained by the Ordinary Differential Equation (ODE) method are presented along with simulations. Sources of energy can be located by estimating time differences of arrival (TDOA's) of waves between the receivers. A new method for TDOA estimation is proposed for multiple unknown ARMA sources and additive correlated receiver noise. The method is based on a formula that uses only the receiver cross-spectra and the source poles. Two algorithms are suggested that allow tradeoffs between computational complexity and accuracy. A new time delay model is derived and used to show the applicability of the methods for non -integer TDOA's. Results from simulations illustrate the performance of the

  6. Advanced 3D Object Identification System Project

    Data.gov (United States)

    National Aeronautics and Space Administration — During the Phase I effort, OPTRA developed object detection, tracking, and identification algorithms and successfully tested these algorithms on computer-generated...

  7. An investigation of a coincidence detection system for an all-digital small animal PET scanner

    International Nuclear Information System (INIS)

    Objective: To investigate and design a coincidence detection system for an all-digital small animal PET scanner and evaluate its preliminary performance properties. Methods: This coincidence module adopted a coincidence identification mode based on singles data in list-mode.Using digital signal processing technology, energy calibration, crystal identification, timing alignment and coincidence events extraction were performed on singles data in list-mode. The obtained data could be used for image reconstruction. Results: The 13 × 13 crystal array was well recognized by the position histogram of one lutetium yttrium orthosilicate (LYSO) crystal block. In the coincidence timing histogram of the micro-Derenzo phantom, 1.36 ns full width at half maximum was obtained. The rods with a diameter of 1.2 mm were clearly displayed in the reconstructed image of the micro-Derenzo phantom. Conclusion: The coincidence module can provide satisfactory performance to meet the design needs of an all-digital small animal PET scanner. (authors)

  8. Particle Identification with the LHCb RICH System

    CERN Document Server

    Harnew, Neville

    2005-01-01

    The LHCb experiment uses a Ring Imaging Cherenkov (RICH) system to provide particle identification over the momentum range 2-100 GeV/c. Two RICH detectors are employed. The upstream detector, RICH1, utilizes both aerogel and C$_4$F$_{10}$ gas radiators whilst the downstream RICH2 uses a CF$_4$ gas radiator. The RICH2 detector has been fabricated and is installed in the LHCb interaction region; RICH1 has a programme of phased design and construction. Novel Hybrid Photon Detectors (HPDs) have been developed in collaboration with industry to detect the Cherenkov photons in the wavelength range 200-600 nm. The HPDs are enclosed in iron shielding and Mumetal cylinders to allow operation in magnetic fields up to 50mT. The performance of pre-series HPDs and the results obtained from a particle test beam using the full LHCb readout chain is presented. The production of a total of 484 HPDs required for the two RICH detectors has recently commenced. The expected performance of the LHCb RICH system, obtained from real...

  9. Identification Performance of the ALICE TOF System

    CERN Document Server

    Paic, G; CERN. Geneva; Smirnitsky, A V; Zagreev, B V

    1996-01-01

    The particle identification using a time of flight system depends on several factors. Some of them are typical of the processes studied, like the multiplicity, the relative particle yields, while some are dictated by the design constraints of the detection system, like the number of secondary particles created by conversions and decays on the way to the TOF detector, the intrinsic detection efficiency of the TOF detector, the tracking efficiency of the tracking device (TPC and ITS in the case of ALICE), and finally the efficiency to match tracks in the TPC to hits in the TOF barrel. The present study has taken into account the realistic physical situation in Pb-Pb central events as predicted by event generators, and the simulated response of the detector using the GEANT code to study the PID performance of the TOF barrel. Taking into acocunt the physical parameters, the optimisation of the TOF design for pixel size and detection efficiency is presented treating specifically the contribution of a multilayer de...

  10. Development of a Magnetoencephalograph System for Small Animals

    International Nuclear Information System (INIS)

    We developed a four-channel first order gradiometer system to measure magnetoencephalogram for mice. We used double relaxation oscillation SQUID (DROS). The diameter of the pickup coil is 4 mm and the distance between the coils is 5 mm. Coil distance was designed to have good spatial resolution for a small mouse brain. We evaluated the current dipole localization confidence region for a mouse brain, using the spherical conductor model. The white noise of the measurement system was about 30 fT/Hz1/2/cm when measured in a magnetically shielded room. We measured magnetic signal from a phantom having the same size of a mouse brain, which was filled with 0.9% saline solution. The results suggest that the developed system has a feasibility to study the functions of brain of small animals.

  11. Linear system identification - The application of Lion's identification scheme to a third order system with noisy input-output measurements

    Science.gov (United States)

    Brown, C. M., Jr.; Monopoli, R. V.

    1974-01-01

    A linear system identification technique developed by Lion is adapted for use on a third-order system with six unknown parameters and noisy input-output measurements. A digital computer is employed so that rapid identification takes place with only two state variable filters. Bias in the parameter estimates is partially eliminated by a signal-to-noise ratio testing procedure.

  12. Security assurance in networked radio frequency identification system environment

    OpenAIRE

    Starc, Iztok

    2011-01-01

    Radio frequency identification is an information and communication technology for wireless identification and object labelling. A typical RFID system consists of a tag, a reader and a back-end system connected to a database. Nowadays these systems are present in the private sector industries as well as in the public sector. The RFID system deployment is increasing as high level of automation allows companies the opportunity to re-organize and adapt their business processes to reduce costs, in...

  13. Animal protection in the legal system of the Czech Republic

    OpenAIRE

    Vrbická, Markéta

    2012-01-01

    This thesis is focused on the summary of the law regulation of animal protection in the Czech Republic. In the introductory part the thesis defines basic causes and aims of the law regulation of animal protection and summaries the history of animals regulation in the Czech republic. After outlining the most significant international treaties and sources of European law in the area of animal protection, the substantial chapter dealing with the definition of animal and related terms in the czec...

  14. Log-Normal Merging for Distributed System Identification

    Czech Academy of Sciences Publication Activity Database

    Šmídl, Václav; Kárný, Miroslav

    Saint Malo : IFAC, 2009, s. 1-6. [15th IFAC Symposium on System Identification. Saint Malo (FR), 06.07.2009-08.07.2009] R&D Projects: GA MŠk 1M0572; GA ČR GP102/08/P250; GA ČR GA102/08/0567 Institutional research plan: CEZ:AV0Z10750506 Keywords : Bayesian Methods * Hybrid and Distributed System Identification * Particle Filtering/Monte Carlo Methods Subject RIV: BC - Control System s Theory http://library.utia.cas.cz/separaty/2009/AS/smidl-log-normal merging for distributed system identification.pdf

  15. Genetic Algorithm-Based Identification of Fractional-Order Systems

    Directory of Open Access Journals (Sweden)

    Shengxi Zhou

    2013-05-01

    Full Text Available Fractional calculus has become an increasingly popular tool for modeling the complex behaviors of physical systems from diverse domains. One of the key issues to apply fractional calculus to engineering problems is to achieve the parameter identification of fractional-order systems. A time-domain identification algorithm based on a genetic algorithm (GA is proposed in this paper. The multi-variable parameter identification is converted into a parameter optimization by applying GA to the identification of fractional-order systems. To evaluate the identification accuracy and stability, the time-domain output error considering the condition variation is designed as the fitness function for parameter optimization. The identification process is established under various noise levels and excitation levels. The effects of external excitation and the noise level on the identification accuracy are analyzed in detail. The simulation results show that the proposed method could identify the parameters of both commensurate rate and non-commensurate rate fractional-order systems from the data with noise. It is also observed that excitation signal is an important factor influencing the identification accuracy of fractional-order systems.

  16. A Miniature Telemetric System for Freely Roaming Animals

    Institute of Scientific and Technical Information of China (English)

    Zhan-Ping Wang; Chun-Peng Zhang; Guang-Zhan Fang; Yang Xia; Tie-Jun Liu; De-Zhong Yao

    2009-01-01

    Telemetric monitoring and control are the two critical aspects for a robot-rat.Development in this work is a telemetric system to record the electro-encephalogram (EEG) from adult freely roaming animals.The system consists of two separated components:the transmit-end system,which consists of the preamplifier,the LPF (low-pass filter) and the transmitter,and the receive-end system,which consists of the receiver,the interface of receive-end and PC.The transmit-end system with light weight (10 g including battery) and small size (20 mm?50 mm) is fettered on the back of the rat.The EEG signal is modulated at the RF frequency of 2.4 GHz by nRF24E1 and transmitted by the antenna.The system can measure the EEG signal of the rat in freely roaming over a wireless transmission distance up to 8 m,and provide a new platform for behavioral and neurophysiological experiments.

  17. Non-linear system identification in flow-induced vibration

    Energy Technology Data Exchange (ETDEWEB)

    Spanos, P.D.; Zeldin, B.A. [Rice Univ., Houston, TX (United States); Lu, R. [Hudson Engineering Corp., Houston, TX (United States)

    1996-12-31

    The paper introduces a method of identification of non-linear systems encountered in marine engineering applications. The non-linearity is accounted for by a combination of linear subsystems and known zero-memory non-linear transformations; an equivalent linear multi-input-single-output (MISO) system is developed for the identification problem. The unknown transfer functions of the MISO system are identified by assembling a system of linear equations in the frequency domain. This system is solved by performing the Cholesky decomposition of a related matrix. It is shown that the proposed identification method can be interpreted as a {open_quotes}Gram-Schmidt{close_quotes} type of orthogonal decomposition of the input-output quantities of the equivalent MISO system. A numerical example involving the identification of unknown parameters of flow (ocean wave) induced forces on offshore structures elucidates the applicability of the proposed method.

  18. Iris Recognition System using canny edge detection for Biometric Identification

    OpenAIRE

    Bhawna Chouhan; Dr.(Mrs) Shailja Shukla

    2011-01-01

    biometric system provides automatic identification of an individual based on a unique feature or characteristic possessed by the individual. Iris recognition is regarded as the most reliable and accurate biometric identification system available. Most commercial iris recognition systems use patented algorithms developed by Daugman, and these algorithms are able to produce perfect recognition rates. Especially it focuses on image segmentation and feature extraction for iris recognition process...

  19. Identification of System Parameters by the Random Decrement Technique

    DEFF Research Database (Denmark)

    Brincker, Rune; Kirkegaard, Poul Henning; Rytter, Anders

    Decrement Technique, and then the system parameters are identified from the correlation function estimates. Three different techniques are used in the parameter identification process: a simple non-parametric method, estimation of an Auto Regressive (AR) model by solving an overdetermined set of Yule......The aim of this paper is to investigate and illustrate the possibilities of using correlation functions estimated by the Random Decrement Technique as a basis for parameter identification. A two-stage system identification system is used: first, the correlation functions are estimated by the Random...

  20. Method and apparatus for animal positioning in imaging systems

    Energy Technology Data Exchange (ETDEWEB)

    Hadjioannou, Arion-Xenofon; Stout, David B.; Silverman, Robert W.

    2013-01-01

    An apparatus for imaging an animal includes a first mounting surface, a bed sized to support the animal and releasably secured to or integral with the first mounting surface. The apparatus also includes a plurality of straps, each having a first end in a fixed position relative to the bed and a second end for tightening around a limb of the animal. A method for in-vivo imaging of an animal includes providing an animal that has limbs, providing a first mounting surface, and providing a bed removably secured to or integral with the mounting surface and sized to support the animal as well as being coupled to a plurality of straps. The method also includes placing the animal on the bed between the plurality of straps and tightening at least two of the plurality of straps around at least two of the limbs such that the animal is substantially secured in place relative to the bed.

  1. Autonomous system for pathogen detection and identification

    Energy Technology Data Exchange (ETDEWEB)

    Belgrader, P. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Benett, W. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Bergman, W. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Langlois, R. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Mariella, R. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Milanovich, F. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Miles, R. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Venkateswaran, K. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Long, G. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Nelson, W. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    1998-09-24

    This purpose of this project is to build a prototype instrument that will, running unattended, detect, identify, and quantify BW agents. In order to accomplish this, we have chosen to start with the world' s leading, proven, assays for pathogens: surface-molecular recognition assays, such as antibody-based assays, implemented on a high-performance, identification (ID)-capable flow cytometer, and the polymerase chain reaction (PCR) for nucleic-acid based assays. With these assays, we must integrate the capability to: l collect samples from aerosols, water, or surfaces; l perform sample preparation prior to the assays; l incubate the prepared samples, if necessary, for a period of time; l transport the prepared, incubated samples to the assays; l perform the assays; l interpret and report the results of the assays. Issues such as reliability, sensitivity and accuracy, quantity of consumables, maintenance schedule, etc. must be addressed satisfactorily to the end user. The highest possible sensitivity and specificity of the assay must be combined with no false alarms. Today, we have assays that can, in under 30 minutes, detect and identify simulants for BW agents at concentrations of a few hundred colony-forming units per ml of solution. If the bio-aerosol sampler of this system collects 1000 Ymin and concentrates the respirable particles into 1 ml of solution with 70% processing efficiency over a period of 5 minutes, then this translates to a detection/ID capability of under 0.1 agent-containing particle/liter of air.

  2. Identification of animal glue species in artworks using proteomics: application to a 18th century gilt sample.

    Science.gov (United States)

    Dallongeville, Sophie; Koperska, Monika; Garnier, Nicolas; Reille-Taillefert, Geneviève; Rolando, Christian; Tokarski, Caroline

    2011-12-15

    This study proposes a proteomic-based strategy for the identification of the origin species of glues used as binding media and adhesives in artworks. The methodology, based on FTICR high resolution mass spectrometry, was evaluated on glues from different animal origin (i.e., bovine, rabbit, and fish). The analysis of the peptide mixture resulting from the enzymatic hydrolysis of the proteins led to the identification of species-specific peptides. Up to 15 specific peptides were identified for the bovine species and three for the rabbit species and, in the case of sturgeon glue, three fish-specific peptides were found by sequence homology to the rainbow trout. Then, the method was applied to authenticate different rabbit skin glue samples, including a 100 year-old sample named "Colle à Doreurs" coming from the "Maison Totin-Frères". For this sample, two specific peptides of rabbit collagen were identified. To evaluate the method in a complex matrix, model paints composed of lead white, linseed oil, and animal glue were prepared. Species-specific peptides were identified in each paint sample. Finally, a gilt sample from St Maximin church dating from the eighteenth century was analyzed, and 13 peptides specific to bovine collagens were identified starting from very low sample amount (50 μg). PMID:22014085

  3. The First Identification of Encephalitozoon cuniculi Infection in an Animal Care Worker in Turkey.

    Directory of Open Access Journals (Sweden)

    Ahmet Carhan

    2015-06-01

    Full Text Available As a zoonotic pathogen, Encephalitozoon cuniculi is a cause of serious disease in animals and people. The present study was to evaluate the health status examination of this seropositive animal care worker in our previous study.Blood samples were taken from five workers. CIA test was applied to detect antibodies against E. cuniculi in blood serum. The indirect immunofluorescence antibody test was used as confirmation test. Seropositive worker had a complete medical examination.Only one worker was found to be seropositive according to the results of the serological test. Sera positive to E. cuniculi was confirmed with IFAT and spores were detected in the urine sample of the worker. The worker was treated with albendazole.Rabbits should be examined routinely for the presence of anti-E. cuniculi antibody. People working with laboratory animal should avoid contact with urine and faeces of infected or pay attention to personal hygiene.

  4. 75 FR 50987 - Privacy Act System of Records; National Animal Health Laboratory Network (NAHLN)

    Science.gov (United States)

    2010-08-18

    ... information about the owner of or person having primary responsibility for an animal undergoing testing in a... responsibility for an animal undergoing testing in a networked laboratory, the following information ] will be... Animal and Plant Health Inspection Service Privacy Act System of Records; National Animal...

  5. Comprehending emergent systems phenomena through direct-manipulation animation

    Science.gov (United States)

    Aguirre, Priscilla Abel

    This study seeks to understand the type of interaction mode that best supports learning and comprehension of emergent systems phenomena. Given that the literature has established that students hold robust misconceptions of such phenomena, this study investigates the influence of using three types of interaction; speed-manipulation animation (SMN), post-manipulation animation (PMA) and direct-manipulation animation (DMA) for increasing comprehension and testing transfer of the phenomena, by looking at the effect of simultaneous interaction of haptic and visual channels on long term and working memories when seeking to comprehend emergent phenomena. The questions asked were: (1) Does the teaching of emergent phenomena, with the aid of a dynamic interactive modeling tool (i.e., SMA, PMA or DMA), improve students' mental model construction of systems, thus increasing comprehension of this scientific concept? And (2) does the teaching of emergent phenomena, with the aid of a dynamic interactive modeling tool, give the students the necessary complex cognitive skill which can then be applied to similar (near transfer) and/or novel, but different, (far transfer) scenarios? In an empirical study undergraduate and graduate students were asked to participate in one of three experimental conditions: SMA, PMA, or DMA. The results of the study found that it was the participants of the SMA treatment condition that had the most improvement in post-test scores. Students' understanding of the phenomena increased most when they used a dynamic model with few interactive elements (i.e., start, stop, and speed) that allowed for real time visualization of one's interaction on the phenomena. Furthermore, no indication was found that the learning of emergent phenomena, with the aid of a dynamic interactive modeling tool, gave the students the necessary complex cognitive skill which could then be applied to similar (near transfer) and/or novel, but different, (far transfer) scenarios

  6. Molecular identification of Cryptosporidium spp. in animal and human hosts from the Czech Republic

    Czech Academy of Sciences Publication Activity Database

    Hajdušek, Ondřej; Ditrich, Oleg; Šlapeta, J.

    2004-01-01

    Roč. 122, č. 3 (2004), s. 183-192. ISSN 0304-4017 R&D Projects: GA AV ČR IBS6022006 Grant ostatní: GA MŠk1(CZ) 1260/2001 Institutional research plan: CEZ:AV0Z6022909 Keywords : Cryptosporidium * molecular identification * SSU rRNA Subject RIV: EE - Microbiology, Virology Impact factor: 1.445, year: 2004

  7. Methods of detection, species identification and quantification of processed animal proteins in feedingstuffs

    Directory of Open Access Journals (Sweden)

    Fumière O.

    2009-01-01

    Full Text Available The ban of processed animal proteins (PAPs in feed for farmed animals led to a significant reduction of the number of bovine spongiform encephalopathy cases. Presently, optical microscopy remains the only reference method for the detection of PAPs to be applied for official control as required by Commission Directive 2003/126/EC. The legislation also foresees that other methods may be applied in addition to classical microscopy, if – for instance – they provide more information about the origin of the animal constituents. Therefore, alternative and complementary techniques were developed as such or in combination. The most promising ones seem to be PCR (Polymerase Chain Reaction, near infrared microscopy and imaging, as well as immunology. Within the framework of a PAP ban regardless of its species origin (total feed ban, most of the studies were mainly focused on the ability of the techniques to detect the presence of PAPs at 0.1% (mass percentage of constituents of animal origin in feed as indicated as limit of detection in the official method protocol. A possible modification of the legislation requires that the techniques are also able to determine their species origin and to quantify them. The present paper gives a state of the art of the different methods.

  8. Critical Evaluation of Animal Alternative Tests for the Identification of Endocrine Active Substances

    Science.gov (United States)

    A significant amount of research is currently targeted to evaluate alternative test methods that may reduce, refine, or replace the use of animals, while ensuring human and environmental health and safety. It is important that the information gained from the alternative tests pr...

  9. Critical Evaluation of Animal Alternative Tests for the Identification of Endocrine Active Substances, oral presentation

    Science.gov (United States)

    In the past 20 years, considerable progress in animal alternatives accompanied by advances in the toxicological sciences and new emphases on aquatic vertebrates has appeared. A significant amount of current research is targeted to evaluate alternative test methods that may reduce...

  10. Subtype distribution of Blastocystis isolates from synanthropic and zoo animals and identification of a new subtype

    DEFF Research Database (Denmark)

    Stensvold, C. R.; Alfellani, M. A.; Nørskov-Lauritsen, S.;

    2009-01-01

    Blastocystis isolates from 56 Danish synanthropic and zoo animals, 62 primates primarily from United Kingdom (UK) collections and 16 UK primate handlers were subtyped by PCR, sequencing and phylogenetic analysis. A new subtype (ST) from primates and artiodactyls was identified and designated as...

  11. New developments in the detection and identification of processed animal proteins in feeds

    NARCIS (Netherlands)

    Raamsdonk, van L.W.D.; Holst, von C.; Baeten, V.; Berben, G.; Boix, A.; Jong, de J.

    2007-01-01

    It is generally accepted that the most likely route of infection of cattle with bovine spongiform encephalopathy (BSE) is by consumption of feeds containing low levels of processed animal proteins (PAPs). This likely route of infection resulted in feed bans, which were primarily aimed at ruminant fe

  12. Identification of System Parameters by the Random Decrement Technique

    DEFF Research Database (Denmark)

    Brincker, Rune; Kirkegaard, Poul Henning; Rytter, Anders

    Decrement technique and then the system parameters are identified from the correlation function estimates. Three different techniques are used in the parameters identification process: a simple non-paramatic method, estimation of an Auto Regressive(AR) model by solving an overdetermined set of Yule......The aim of this paper is to investigate and illustrate the possibilities of using correlation functions estimated by the Random Decrement Technique as a basis for parameter identification. A two-stage system identification method is used: first the correlation functions are estimated by the Random...

  13. Time-Varying FOPDT System Identification with Unknown Disturbance Input

    DEFF Research Database (Denmark)

    Sun, Zhen; Yang, Zhenyu

    2012-01-01

    -FOPDT identification problem turns to estimate these time-varying parameters based on measured control input and system output. This work considers a TV-FOPDT identification problem in the presence of an unknown disturbance input. By regarding the unknown input as one extra system parameter, the considered...... identification problem is formulated as a Stochastic Mixed Integral Programming (SMIP) problem after discretizing the original problem. The sliding window technique with forgetting factor is employed to cope with time resolution issue, and the Least Mean Square (LMS) method is used to obtain the optimal solution...

  14. Assessing the effectiveness of the battlefield combat identification system

    OpenAIRE

    Grabski, Mark V.

    1999-01-01

    The Battlefield Combat Identification System (BCIS) was developed at the direction of the Joint Chiefs of Staff following the Gulf War to address the problem of direct fire fratricide. The system is designed to improve target identification and increase situational awareness for ground combat forces. The purpose of this thesis is to determine whether BCIS improves combat effectiveness. Additionally, this thesis provides a simulation tool that is utilized to assess the effectiveness of BCIS va...

  15. MINIMAL CUT SETS IDENTIFICATION OF NUCLEAR SYSTEMS BY EVOLUTIONARY ALGORITHMS

    OpenAIRE

    Di Maio, Francesco; Baronchelli, Samuele; Zio, Enrico

    2013-01-01

    Fault Trees (FTs) for the Probabilistic Safety Analysis (PSA) of real systems suffer from the combinatorial explosion of failure sets. Then, minimal cut sets (mcs) identification is not a trivial technical issue. In this work, we transform the search of the event sets leading to system failure and the identification of the mcs into an optimization problem. We do so by hierarchically looking for the minimum combination of cut sets that can guarantee the best coverage of all the minterms that m...

  16. Continuous-Time System Identification of a Smoking Cessation Intervention

    OpenAIRE

    Timms, Kevin P.; Rivera, Daniel E.; Collins, Linda M.; Piper, Megan E.

    2014-01-01

    Cigarette smoking is a major global public health issue and the leading cause of preventable death in the United States. Toward a goal of designing better smoking cessation treatments, system identification techniques are applied to intervention data to describe smoking cessation as a process of behavior change. System identification problems that draw from two modeling paradigms in quantitative psychology (statistical mediation and self-regulation) are considered, consisting of a series of c...

  17. Animation of multi-flexible body systems and its use in control system design

    Science.gov (United States)

    Juengst, Carl; Stahlberg, Ron

    1993-01-01

    Animation can greatly assist the structural dynamicist and control system analyst with better understanding of how multi-flexible body systems behave. For multi-flexible body systems, the structural characteristics (mode frequencies, mode shapes, and damping) change, sometimes dramatically with large angles of rotation between bodies. With computer animation, the analyst can visualize these changes and how the system responds to active control forces and torques. A characterization of the type of system we wish to animate is presented. The lack of clear understanding of the above effects was a key element leading to the development of a multi-flexible body animation software package. The resulting animation software is described in some detail here, followed by its application to the control system analyst. Other applications of this software can be determined on an individual need basis. A number of software products are currently available that make the high-speed rendering of rigid body mechanical system simulation possible. However, such options are not available for use in rendering flexible body mechanical system simulations. The desire for a high-speed flexible body visualization tool led to the development of the Flexible Or Rigid Mechanical System (FORMS) software. This software was developed at the Center for Simulation and Design Optimization of Mechanical Systems at the University of Iowa. FORMS provides interactive high-speed rendering of flexible and/or rigid body mechanical system simulations, and combines geometry and motion information to produce animated output. FORMS is designed to be both portable and flexible, and supports a number of different user interfaces and graphical display devices. Additional features have been added to FORMS that allow special visualization results related to the nature of the flexible body geometric representations.

  18. Closed-loop System Identification with New Sensors

    DEFF Research Database (Denmark)

    Bendtsen, Jan Dimon; Trangbæk, K; Stoustrup, Jakob

    2008-01-01

    This paper deals with system identification of new system dynamics revealed by online introduction of new sensors in existing multi-variable linear control systems. The so-called "Hansen Scheme" utilises the dual Youla-Kucera parameterisation of all systems stabilised by a given linear controller...... to transform closed-loop system identification problems into open-loop-like problems. We show that this scheme can be formally extended to accomodate extra sensors in a nice way. The approach is illustrated on a simple simulation example....

  19. Proteomic Identification of Altered Cerebral Proteins in the Complex Regional Pain Syndrome Animal Model

    OpenAIRE

    Francis Sahngun Nahm; Zee-Yong Park; Sang-Soep Nahm; Yong Chul Kim; Pyung Bok Lee

    2014-01-01

    Background. Complex regional pain syndrome (CRPS) is a rare but debilitating pain disorder. Although the exact pathophysiology of CRPS is not fully understood, central and peripheral mechanisms might be involved in the development of this disorder. To reveal the central mechanism of CRPS, we conducted a proteomic analysis of rat cerebrum using the chronic postischemia pain (CPIP) model, a novel experimental model of CRPS. Materials and Methods. After generating the CPIP animal model, we perfo...

  20. Seed dispersal by animals: exact identification of source trees with endocarp DNA microsatellites

    OpenAIRE

    Godoy, José A.; Jordano, Pedro

    2001-01-01

    A long-standing challenge in studies of seed dispersal by animal frugivores has been the characterization of the spatial relationships between dispersed seeds and the maternal plants, i.e. the seed shadow. The difficulties to track unambiguously the origin of frugivore- dispersed seeds in natural communities has been considered an unavoidable limitation of the research field and precluded a robust analysis of the direct consequences of zoochory. Here we report that the multilocus genotype at ...

  1. Identification of cross-contaminated animal cells by PCR and isoenzyme analysis

    OpenAIRE

    Ramya, R.; T. Nagarajan; Sivakumar, V.; Senthilkumar, R. L.; Bala Obulapathi, B.; Thiagarajan, D; Srinivasan, V.A.

    2009-01-01

    Animal cell lines have become very popular substrates for the production of vaccines and biopharmaceuticals. Characterization of candidate production cell lines is central to ensure product safety and maintenance of consistency in the manufacture of biologicals. Nested PCR and isoenzyme analysis have been used widely to prove the identity and purity of various cell lines and primary cells individually and also after deliberate cross-contamination. The nested PCR based on the Cytochrome b (Cyt...

  2. EURL ECVAM Strategy for Replacement of Animal Testing for Skin Sensitisation Hazard Identification and Classification

    OpenAIRE

    CASATI Silvia; Worth, Andrew; AMCOFF SVEN PATRIK; Whelan, Maurice

    2013-01-01

    In the absence of validated and regulatory accepted alternative methods, the assessment of the skin sensitisation potential of chemicals still relies on animal testing. Progress in the development of alternative methods has been prompted by the increasing knowledge on the key mechanisms of the skin sensitisation pathway, as recently documented in the OECD Adverse Outcome Pathway for skin sensitisation. Based on an analysis of the regulatory requirements for this endpoint within relevant piece...

  3. Experimental strategies for the identification and characterization of adhesive proteins in animals: a review

    OpenAIRE

    Hennebert, Elise; Maldonado, Barbara; Ladurner, Peter; Flammang, Patrick; Santos, Romana

    2015-01-01

    Adhesive secretions occur in both aquatic and terrestrial animals, in which they perform diverse functions. Biological adhesives can therefore be remarkably complex and involve a large range of components with different functions and interactions. However, being mainly protein based, biological adhesives can be characterized by classical molecular methods. This review compiles experimental strategies that were successfully used to identify, characterize and obtain the full-length sequence of ...

  4. Plasma lipid profiling across species for the identification of optimal animal models of human dyslipidemia.

    Science.gov (United States)

    Yin, Wu; Carballo-Jane, Ester; McLaren, David G; Mendoza, Vivienne H; Gagen, Karen; Geoghagen, Neil S; McNamara, Lesley Ann; Gorski, Judith N; Eiermann, George J; Petrov, Aleksandr; Wolff, Michael; Tong, Xinchun; Wilsie, Larissa C; Akiyama, Taro E; Chen, Jing; Thankappan, Anil; Xue, Jiyan; Ping, Xiaoli; Andrews, Genevieve; Wickham, L Alexandra; Gai, Cesaire L; Trinh, Tu; Kulick, Alison A; Donnelly, Marcie J; Voronin, Gregory O; Rosa, Ray; Cumiskey, Anne-Marie; Bekkari, Kavitha; Mitnaul, Lyndon J; Puig, Oscar; Chen, Fabian; Raubertas, Richard; Wong, Peggy H; Hansen, Barbara C; Koblan, Ken S; Roddy, Thomas P; Hubbard, Brian K; Strack, Alison M

    2012-01-01

    In an attempt to understand the applicability of various animal models to dyslipidemia in humans and to identify improved preclinical models for target discovery and validation for dyslipidemia, we measured comprehensive plasma lipid profiles in 24 models. These included five mouse strains, six other nonprimate species, and four nonhuman primate (NHP) species, and both healthy animals and animals with metabolic disorders. Dyslipidemic humans were assessed by the same measures. Plasma lipoprotein profiles, eight major plasma lipid fractions, and FA compositions within these lipid fractions were compared both qualitatively and quantitatively across the species. Given the importance of statins in decreasing plasma low-density lipoprotein cholesterol for treatment of dyslipidemia in humans, the responses of these measures to simvastatin treatment were also assessed for each species and compared with dyslipidemic humans. NHPs, followed by dog, were the models that demonstrated closest overall match to dyslipidemic humans. For the subset of the dyslipidemic population with high plasma triglyceride levels, the data also pointed to hamster and db/db mouse as representative models for practical use in target validation. Most traditional models, including rabbit, Zucker diabetic fatty rat, and the majority of mouse models, did not demonstrate overall similarity to dyslipidemic humans in this study. PMID:22021650

  5. A Portable System for Nuclear, Chemical Agent and Explosives Identification

    International Nuclear Information System (INIS)

    The FRIS/PINS hybrid integrates the LLNL-developed Field Radionuclide Identification System (FRIS) with the INEEL-developed Portable Isotopic Neutron Spectroscopy (PINS) chemical assay system to yield a combined general radioisotope, special nuclear material, and chemical weapons/explosives detection and identification system. The PINS system uses a neutron source and a high-purity germanium γ-ray detector. The FRIS system uses an electrochemically cooled germanium detector and its own analysis software to detect and identify special nuclear material and other radioisotopes. The FRIS/PINS combined system also uses the electromechanically-cooled germanium detector. There is no other currently available integrated technology that can combine an active neutron interrogation and analysis capability for CWE with a passive radioisotope measurement and identification capability for special nuclear material

  6. A portable air jet actuator device for mechanical system identification

    Science.gov (United States)

    Belden, Jesse; Staats, Wayne L.; Mazumdar, Anirban; Hunter, Ian W.

    2011-03-01

    System identification of limb mechanics can help diagnose ailments and can aid in the optimization of robotic limb control parameters and designs. An interesting fluid phenomenon—the Coandă effect—is utilized in a portable actuator to provide a stochastic binary force disturbance to a limb system. The design of the actuator is approached with the goal of creating a portable device which could be deployed on human or robotic limbs for in situ mechanical system identification. The viability of the device is demonstrated by identifying the parameters of an underdamped elastic beam system with fixed inertia and stiffness and variable damping. The nonparametric compliance impulse response yielded from the system identification is modeled as a second-order system and the resultant parameters are found to be in excellent agreement with those found using more traditional system identification techniques. The current design could be further miniaturized and developed as a portable, wireless, unrestrained mechanical system identification instrument for less intrusive and more widespread use.

  7. System identification methods for aircraft flight control development and validation

    Science.gov (United States)

    Tischler, Mark B.

    1995-01-01

    System-identification methods compose a mathematical model, or series of models, from measurements of inputs and outputs of dynamic systems. The extracted models allow the characterization of the response of the overall aircraft or component subsystem behavior, such as actuators and on-board signal processing algorithms. This paper discusses the use of frequency-domain system-identification methods for the development and integration of aircraft flight-control systems. The extraction and analysis of models of varying complexity from nonparametric frequency-responses to transfer-functions and high-order state-space representations is illustrated using the Comprehensive Identification from FrEquency Responses (CIFER) system-identification facility. Results are presented for test data of numerous flight and simulation programs at the Ames Research Center including rotorcraft, fixed-wing aircraft, advanced short takeoff and vertical landing (ASTOVL), vertical/short takeoff and landing (V/STOL), tiltrotor aircraft, and rotor experiments in the wind tunnel. Excellent system characterization and dynamic response prediction is achieved for this wide class of systems. Examples illustrate the role of system-identification technology in providing an integrated flow of dynamic response data around the entire life-cycle of aircraft development from initial specifications, through simulation and bench testing, and into flight-test optimization.

  8. Multi-omic data integration and analysis using systems genomics approaches: methods and applications in animal production, health and welfare.

    Science.gov (United States)

    Suravajhala, Prashanth; Kogelman, Lisette J A; Kadarmideen, Haja N

    2016-01-01

    In the past years, there has been a remarkable development of high-throughput omics (HTO) technologies such as genomics, epigenomics, transcriptomics, proteomics and metabolomics across all facets of biology. This has spearheaded the progress of the systems biology era, including applications on animal production and health traits. However, notwithstanding these new HTO technologies, there remains an emerging challenge in data analysis. On the one hand, different HTO technologies judged on their own merit are appropriate for the identification of disease-causing genes, biomarkers for prevention and drug targets for the treatment of diseases and for individualized genomic predictions of performance or disease risks. On the other hand, integration of multi-omic data and joint modelling and analyses are very powerful and accurate to understand the systems biology of healthy and sustainable production of animals. We present an overview of current and emerging HTO technologies each with a focus on their applications in animal and veterinary sciences before introducing an integrative systems genomics framework for analysing and integrating multi-omic data towards improved animal production, health and welfare. We conclude that there are big challenges in multi-omic data integration, modelling and systems-level analyses, particularly with the fast emerging HTO technologies. We highlight existing and emerging systems genomics approaches and discuss how they contribute to our understanding of the biology of complex traits or diseases and holistic improvement of production performance, disease resistance and welfare. PMID:27130220

  9. Dynamic Modeling and Parameter Identification of Power Systems

    Institute of Scientific and Technical Information of China (English)

    2000-01-01

    @@ The generator, the excitation system, the steam turbine and speed governor, and the load are the so called four key models of power systems. Mathematical modeling and parameter identification for the four key models are of great importance as the basis for designing, operating, and analyzing power systems.

  10. A Computer Aided System for Tropical Leaf Medicinal Plant Identification

    Directory of Open Access Journals (Sweden)

    Yeni Herdiyeni

    2013-01-01

    Full Text Available The objective of this paper is to develop a computer aided system for leaf medicinal plant identification using ProbabilisticNeural Network. In Indonesia only 20-22% of medicinal plants have been cultivated. Generally, identification process of medicinalplants has been done manually by a herbarium taxonomist using guidebook of taxonomy/dendrology. This system is designed to helptaxonomist to identify leaf medicinal plant automatically using acomputer-aided system. This system uses three features of leaf toidentify the medicinal plant, i.e., morphology, shape, and texture. Leaf is used in this system for identification because easily to find.To classify medicinal plant we used Probabilistic Neural Network. The features will be combined using Product Decision Rule (PDR.The system was tested on 30 species medicinal plant from Garden of Biopharmaca Research Center and Greenhouse Center of Exsitu Conservation of Medicinal Indonesian Tropical Forest Plants, Faculty of Forestry, Bogor Agriculture University, Indonesia.Experiment results showed that the accuracy of medicinal plant identification using combination of leaf features increase until74,67%.The comparative analysis of leaf features has been performed statistically. It showed that shape is a dominant features for plant identification. This system is very promising to help people identify medicinal plant automatically and for conservation and utilization of medicinal plants.

  11. Experimental studies in system identification of helicopter rotor dynamics

    Science.gov (United States)

    Mckillip, Robert, Jr.

    1988-01-01

    Recent experiments investigating the system identification of helicopter rotor dynamics are described. The identification makes use of a two-pass procedure that estimates the rotor dynamic states prior to estimation of the dynamic equation parameters. Estimation of the rotor states is made possible through use of the predictive information contained in blade-mounted accelerometers combined with a specialized processing scheme utilizing these signals. Descriptions of the experimental hardware and the system identification technique are given, as well as implementation issues for using the procedure on other similarly instrumented rotor blades. Finally, comparisons with other identification techniques using the same data are presented. It is demonstrated that the approach is an attractive one for measurement of a helicopter rotor's dynamic behavior.

  12. Structural safety evaluation based on system identification approaches

    International Nuclear Information System (INIS)

    The papers are classified in an arbitrary manner. Several papers cover more than one item. In Item No. 1 the tools for the detection and localization of structure modifications by identification methods are discussed in general. The discussion of system identification approaches is included in Item No. 2. Instrumentation and data processing are important parts of identification, since the quality of the results depends on them. The interaction between the results of system identification and damage evaluation is discussed in Item No. 3. Here probabilistic methods and related mathematics such as fuzzy sets are presented. Under Item No. 4 concepts of damage evaluation are discussed. Ideally both linear and nonlinear models should be considered. (DG)

  13. Listeria monocytogenes Identification in Food of Animal Origin Used with Real Time PCR

    OpenAIRE

    Jaroslav Pochop; Miroslava Kačániová; Lukáš Hleba; Jana Petrová; Adriana Pavelková; Ľubomír Lopašovský

    2013-01-01

    The aim of this study was to follow the contamination of food with Listeria monocytogenes by using Step One real time polymerase chain reaction (RT PCR). We used the PrepSEQ Rapid Spin Sample Preparation Kit for isolation of DNA and SensiFAST SYBR Hi-ROX Kit for the real-time PCR performance. In 20 samples of food of animal origin with incubation were detected strains of Listeria monocytogenes in 9 samples (swabs). Eleven samples were negative. Our results indicated that the real-time PCR ass...

  14. MAC, A System for Automatically IPR Identification, Collection and Distribution

    Science.gov (United States)

    Serrão, Carlos

    Controlling Intellectual Property Rights (IPR) in the Digital World is a very hard challenge. The facility to create multiple bit-by-bit identical copies from original IPR works creates the opportunities for digital piracy. One of the most affected industries by this fact is the Music Industry. The Music Industry has supported huge losses during the last few years due to this fact. Moreover, this fact is also affecting the way that music rights collecting and distributing societies are operating to assure a correct music IPR identification, collection and distribution. In this article a system for automating this IPR identification, collection and distribution is presented and described. This system makes usage of advanced automatic audio identification system based on audio fingerprinting technology. This paper will present the details of the system and present a use-case scenario where this system is being used.

  15. An isolated working heart system for large animal models.

    Science.gov (United States)

    Schechter, Matthew A; Southerland, Kevin W; Feger, Bryan J; Linder, Dean; Ali, Ayyaz A; Njoroge, Linda; Milano, Carmelo A; Bowles, Dawn E

    2014-01-01

    Since its introduction in the late 19(th) century, the Langendorff isolated heart perfusion apparatus, and the subsequent development of the working heart model, have been invaluable tools for studying cardiovascular function and disease(1-15). Although the Langendorff heart preparation can be used for any mammalian heart, most studies involving this apparatus use small animal models (e.g., mouse, rat, and rabbit) due to the increased complexity of systems for larger mammals(1,3,11). One major difficulty is ensuring a constant coronary perfusion pressure over a range of different heart sizes - a key component of any experiment utilizing this device(1,11). By replacing the classic hydrostatic afterload column with a centrifugal pump, the Langendorff working heart apparatus described below allows for easy adjustment and tight regulation of perfusion pressures, meaning the same set-up can be used for various species or heart sizes. Furthermore, this configuration can also seamlessly switch between constant pressure or constant flow during reperfusion, depending on the user's preferences. The open nature of this setup, despite making temperature regulation more difficult than other designs, allows for easy collection of effluent and ventricular pressure-volume data. PMID:24962492

  16. Three-dimensional modeler for animated images display system

    International Nuclear Information System (INIS)

    The mv3d software allows the modeling and display of three dimensional objects in interpretative mode with animation possibility in real time. This system is intended for a graphical extension of a FORTH interpreter (implemented by CEA/IRDI/D.LETI/DEIN) in order to control a specific hardware (3.D card designed and implemented by DEIN) allowing the generation of three dimensional objects. The object description is carried out with a specific graphical language integrated in the FORTH interpreter. Objects are modeled using elementary solids called basic forms (cube, cone, cylinder...) assembled with classical geometric transformations (rotation, translation and scaling). These basic forms are approximated by plane polygonal facets further divided in triangles. Coordinates of the summits of triangles constitute the geometrical data. These are sent to the 3.D. card for processing and display. Performed processing are: geometrical transformations on display, hidden surface elimination, shading and clipping. The mv3d software is not an entire modeler but a simple, modular and extensible tool, to which other specific functions may be easily added such as: robots motion, collisions... (author)

  17. Enterocytozoon bieneusi in human and animals, focus on laboratory identification and molecular epidemiology

    Directory of Open Access Journals (Sweden)

    Thellier M.

    2008-09-01

    Full Text Available Human microsporidian infections have emerged following the onset of the AIDS pandemic. Microsporidia are unicellular eukaryotic parasites that form spores. They are an exceptionally diverse group of parasites that infect a wide range of eukaryotic cells in numerous invertebrate and vertebrate hosts. Of the 14 species newly described as pathogens in human, Enterocytozoon bieneusi, which causes gastrointestinal diseases, is the most common agent of human infections. In the past fifteen years, E. bieneusi was also identified in environmental sources, especially in surface water, as well as in wild, domestic and farm animals. These findings raised concerns for waterborne, foodborne and zoonotic transmission. Molecular analyses of the 243-bp internal Transcribed spacer-(ITS of the rRNA gene have revealed a considerable genetic variation within E. bieneusi isolates of human and animal origins, supporting the potential for zoonotic transmission. The focus of this revue is to present and discuss recent advances in diagnosis and zoonotic potential of E. bieneusi infections.

  18. Listeria monocytogenes Identification in Food of Animal Origin Used with Real Time PCR

    Directory of Open Access Journals (Sweden)

    Jaroslav Pochop

    2013-10-01

    Full Text Available The aim of this study was to follow the contamination of food with Listeria monocytogenes by using Step One real time polymerase chain reaction (RT PCR. We used the PrepSEQ Rapid Spin Sample Preparation Kit for isolation of DNA and SensiFAST SYBR Hi-ROX Kit for the real-time PCR performance. In 20 samples of food of animal origin with incubation were detected strains of Listeria monocytogenes in 9 samples (swabs. Eleven samples were negative. Our results indicated that the real-time PCR assay developed in this study could sensitively detect Listeria monocytogenes in food of animal origin without incubation. This could prevent infection caused by Listeria monocytogenes, and also could benefit food manufacturing companies by extending their product’s shelf-life as well as saving the cost of warehousing their food products while awaiting pathogen testing results. The rapid real-time PCR-based method performed very well compared to the conventional method. It is a fast, simple, specific and sensitive way to detect nucleic acids, which could be used in clinical diagnostic tests in the future.

  19. Improved Stochastic Subspace System Identification for Structural Health Monitoring

    Science.gov (United States)

    Chang, Chia-Ming; Loh, Chin-Hsiung

    2015-07-01

    Structural health monitoring acquires structural information through numerous sensor measurements. Vibrational measurement data render the dynamic characteristics of structures to be extracted, in particular of the modal properties such as natural frequencies, damping, and mode shapes. The stochastic subspace system identification has been recognized as a power tool which can present a structure in the modal coordinates. To obtain qualitative identified data, this tool needs to spend computational expense on a large set of measurements. In study, a stochastic system identification framework is proposed to improve the efficiency and quality of the conventional stochastic subspace system identification. This framework includes 1) measured signal processing, 2) efficient space projection, 3) system order selection, and 4) modal property derivation. The measured signal processing employs the singular spectrum analysis algorithm to lower the noise components as well as to present a data set in a reduced dimension. The subspace is subsequently derived from the data set presented in a delayed coordinate. With the proposed order selection criteria, the number of structural modes is determined, resulting in the modal properties. This system identification framework is applied to a real-world bridge for exploring the feasibility in real-time applications. The results show that this improved system identification method significantly decreases computational time, while qualitative modal parameters are still attained.

  20. Isolation, identification, and characterization of Listeria spp. from various animal origin foods

    Directory of Open Access Journals (Sweden)

    Deepti N. Nayak

    2015-06-01

    Full Text Available Aim: The present study was undertaken with the prime objective of isolating and identifying Listeria spp. from various foods of animal origin sold at retail market outlets in the city of Navsari, Gujarat. Materials and Methods: Total 200 samples comprising of milk, milk products, meat, and fish (50 each collected aseptically from local market which were subjected first to pre-enrichment in half strength Fraser broth followed by enrichment in full strength Fraser broth and subsequent plating on PALCAM agar. The growth with the typical colony characteristics were further identified up to species level on the basis of their morphological and biochemical characteristics. Cultures identified as Listeria monocytogenes were further subjected to in vitro pathogenicity tests and detection of different virulence associated genes viz. actA, hlyA, and iap using polymerase chain reaction. Results: Of the total 200 food samples of animal origin; 18 (9% were found positive for Listeria spp. which were identified as Listeria seeligeri (6, 33.3%, Listeria innocua (5, 27.7%, Listeria welshimeri (4, 22.2%, and L. monocytogenes (3, 16.6%. The highest prevalence was observed in milk samples (8. Species wise, 6 isolates of L. seeligeri which included two each from cow milk, buffalo milk, and meat samples; 5 L. innocua isolates included four recovered from fish and one from meat sample; 4 L. welshimeri comprised of two isolates from ice cream and one each from buffalo milk and meat sample; and 3 isolates of L. monocytogenes recovered from milk (1 cow and 2 buffalo milk. All 3 L. monocytogenes isolates screened for the presence of virulence genes viz. actA, hlyA, and iap using the specific primers revealed the presence of all the genes suggesting the possibility of danger of foodborne listeriosis among raw milk consumers. Conclusion: Listeria spp. was isolated from 9% (18/200 of the animal origin food samples viz.; milk, milk products, meat, and fish with the highest

  1. Identification of a bacteria-like ferrochelatase in Strongyloides venezuelensis, an animal parasitic nematode.

    Directory of Open Access Journals (Sweden)

    Eiji Nagayasu

    Full Text Available Heme is an essential molecule for vast majority of organisms serving as a prosthetic group for various hemoproteins. Although most organisms synthesize heme from 5-aminolevulinic acid through a conserved heme biosynthetic pathway composed of seven consecutive enzymatic reactions, nematodes are known to be natural heme auxotrophs. The completely sequenced Caenorhabditis elegans genome, for example, lacks all seven genes for heme biosynthesis. However, genome/transcriptome sequencing of Strongyloides venezuelensis, an important model nematode species for studying human strongyloidiasis, indicated the presence of a gene for ferrochelatase (FeCH, which catalyzes the terminal step of heme biosynthesis, whereas the other six heme biosynthesis genes are apparently missing. Phylogenetic analyses indicated that nematode FeCH genes, including that of S. venezuelensis (SvFeCH have a fundamentally different evolutionally origin from the FeCH genes of non-nematode metazoa. Although all non-nematode metazoan FeCH genes appear to be inherited vertically from an ancestral opisthokont, nematode FeCH may have been acquired from an alpha-proteobacterium, horizontally. The identified SvFeCH sequence was found to function as FeCH as expected based on both in vitro chelatase assays using recombinant SvFeCH and in vivo complementation experiments using an FeCH-deficient strain of Escherichia coli. Messenger RNA expression levels during the S. venezuelensis lifecycle were examined by real-time RT-PCR. SvFeCH mRNA was expressed at all the stages examined with a marked reduction at the infective third-stage larvae. Our study demonstrates the presence of a bacteria-like FeCH gene in the S. venezuelensis genome. It appeared that S. venezuelensis and some other animal parasitic nematodes reacquired the once-lost FeCH gene. Although the underlying evolutionary pressures that necessitated this reacquisition remain to be investigated, it is interesting that the presence of Fe

  2. Performance of Personal Identification System Technique Using Iris Biometrics Technology

    Directory of Open Access Journals (Sweden)

    V.K. Narendira Kumar

    2013-04-01

    Full Text Available The Iris identification as one of the significant techniques of biometric identification systems s and iris recognition algorithm is described. Biometric technology advances intellectual properties are wanted by many unauthorized personnel. As a result many researchers have being searching ways for more secure authentication methods for the user access. Iris recognition uses iris patterns for personnel identification. The system steps are capturing iris patterns; determining the location of iris boundaries; converting the iris boundary to the stretched polar coordinate system; extracting iris code based on texture analysis. The system has been implemented and tested using dataset of number of samples of iris data with different contrast quality. The developed algorithm performs satisfactorily on the images, provides 93% accuracy. Experimental results show that the proposed method has an encouraging performance.

  3. An optimized proportionate adaptive algorithm for sparse system identification

    DEFF Research Database (Denmark)

    Ciochina, Silviu; Paleologu, Constantin; Benesty, Jacob; L. Grant, Steven

    The proportionate-type adaptive algorithms are commonly used for the identification of sparse impulse responses, like in network or acoustic echo cancellation. In this paper, we propose an optimized proportionate algorithm in the context of a state variable model. The algorithm follows an...... optimization criterion based on the minimization of the system misalignment and uses an iterative procedure for adjusting the system model parameter. Consequently, it achieves a proper compromise between the performance criteria, i.e., fast convergence/tracking and low misadjustment. Simulations performed in...... the context of sparse system identification indicate the good behavior of the proposed algorithm....

  4. Comparison of the Quantum II Bacterial Identification System and the AutoMicrobic System for the identification of gram-negative bacilli.

    OpenAIRE

    Pfaller, M A; Bale, M J; Schulte, K R; Koontz, F P

    1986-01-01

    The Quantum II Bacterial Identification System (BID; Abbott Laboratories) is a microprocessor-based spectrophotometric system for identification within 4 to 5 h of both enteric and nonenteric gram-negative bacilli. We compared the BID with the AutoMicrobic System (AMS; Vitek Systems, Inc.), using the most recent gram-negative identification card and software (AMS-GNI), for the identification of 501 clinical isolates of gram-negative bacilli, including 382 belonging to the Enterobacteriaceae a...

  5. Stokes identification in an atomic ensemble using a filtering system

    Institute of Scientific and Technical Information of China (English)

    Luo Xiao-Ming; Ning Bo; Chen Li-Qing; Zhou Yue; Zhong Zhi-Ping; Jiang Shuo

    2009-01-01

    Polarization filtering and atomic cell filtering are applied in the identification of Stokes signals in an atomic ensemble, and reduce the noise to a level of 10~(-5) and 10~(-4) respectively. Good Stokes signals are then obtained. In this article the two filtering systems and the final Stokes output are presented, and the optimization of the polarization filtering system is highlighted.

  6. 40 CFR 160.90 - Animal and other test system care.

    Science.gov (United States)

    2010-07-01

    ... PROGRAMS GOOD LABORATORY PRACTICE STANDARDS Testing Facilities Operation § 160.90 Animal and other test... 40 Protection of Environment 23 2010-07-01 2010-07-01 false Animal and other test system care. 160... as raw data. (h) Bedding used in animal cages or pens shall not interfere with the purpose or...

  7. Combined parametric-nonparametric identification of block-oriented systems

    CERN Document Server

    Mzyk, Grzegorz

    2014-01-01

    This book considers a problem of block-oriented nonlinear dynamic system identification in the presence of random disturbances. This class of systems includes various interconnections of linear dynamic blocks and static nonlinear elements, e.g., Hammerstein system, Wiener system, Wiener-Hammerstein ("sandwich") system and additive NARMAX systems with feedback. Interconnecting signals are not accessible for measurement. The combined parametric-nonparametric algorithms, proposed in the book, can be selected dependently on the prior knowledge of the system and signals. Most of them are based on the decomposition of the complex system identification task into simpler local sub-problems by using non-parametric (kernel or orthogonal) regression estimation. In the parametric stage, the generalized least squares or the instrumental variables technique is commonly applied to cope with correlated excitations. Limit properties of the algorithms have been shown analytically and illustrated in simple experiments.

  8. Development, validation and implementation of animal health information systems in an environment without uniquely identified animals in transitional countries

    International Nuclear Information System (INIS)

    The veterinary activities for control of animal diseases are based on the Low for Veterinary Health [2], the Programme for control and eradication of especially dangerous diseases in animals [3] and the special programmes designed for specific diseases, which are in accordance with the EU legislative. This legislative is defining a division of the country into 30 Epidemiological Areas (EAs) and 123 Epidemiological Units (EUs). Each village belongs to a defined EU, which further belongs to a defined EA. Two animal health information systems were developed in Macedonia, the National Epidemiological Information System (NEIS) and the Laboratory Information System (LABIS). Both systems were aimed on collection/interpretation of animal disease data, in a country where animals are not uniquely identified. The development of NEIS was based on the existing legislation of compulsatory notification of infectious diseases. Field records are collected via the designated veterinary practices (DVP) and entered into the NEIS via the veterinary inspectors (VIs), (employees of the MAFWE). Sources of data for NEIS are obligatory disease control programs (Annual order), Endemic diseases, Outbreaks, Slaughterhouses and Laboratory results of annual surveys. LABIS is a separate database for managing laboratory results. It collects data from samples submitted by DVPs. The samples can be then analyzed in different laboratories, using different methods and given a 'final status' by authorized person. The final status is linked to the previously performed tests and entered into the NEIS. By this concept, the Veterinary department is capable to trace back the background for each individual sample, by reviewing the analyses performed on it. Both systems are designed as a referential integrity databases, where the field result is linked to the animal, owner, village (n = 1803), epidemiological units (n = 123) and epidemiological areas (n = 30) in the country. NEIS can also present the same data

  9. Development, validation and implementation of animal health information systems in an environment without uniquely identified animals in transitional countries

    International Nuclear Information System (INIS)

    Two animal health information systems were developed in Macedonia, the National Epidemiological Information System (NEIS) and the Laboratory Information System (LABIS). Both systems were aimed at collecting/interpreting animal disease data in a country where animals are not uniquely identified. The development of NEIS was based on the existing legislation of compulsory notification of infectious diseases. Field records are collected via the designated veterinary practices and entered into the NEIS via the veterinary inspectors who are employees of the Ministry of Agriculture, Forestry and Water Economy. Sources of data for NEIS are obligatory disease control programmes (Annual Order), endemic diseases, outbreaks, slaughterhouses and laboratory results of annual surveys. LABIS is a separate database for managing laboratory results. It collects data from samples submitted by Designated Veterinary Practices (DVPs). The samples can then be analysed in different laboratories using different methods and given a 'final status' by an authorised person. The final status is linked to the previously performed tests and entered into the NEIS. Using this concept, the Veterinary Department can trace back the background for each individual sample by reviewing the analyses performed on it. Both systems are designed as a referential integrity databases, where the field result is linked to the animal, owner, village (n = 1 803), epidemiological unit (n = 123) and epidemiological area (n = 30) in the country. NEIS can also present the same data in geographical maps, showing the infected village as the smallest unit of observation. Both systems have also different levels of authorisation access, allowing precise tracing of entered data. (author)

  10. Parameters identification of chaotic system by chaotic gravitational search algorithm

    International Nuclear Information System (INIS)

    In this paper, for the parameter identification problem of chaotic system, a chaotic gravitational search algorithm (CGSA) is proposed. At first, an iterative chaotic map with infinite collapses is introduced and chaotic local search (CLS) is designed, then CLS and basic gravitational search are combined in the procedure frame. The CGSA is composed of coarse gravitational search and fine chaotic local search, while chaotic search seeks the optimal solution further, based on the current best solution found by the coarse gravitational search. In order to show the effectiveness of CGSA, both offline and online parameter identifications of Lorenz system are conducted in comparative experiments, while the performances of CGSA are compared with GA, PSO and GSA. The results demonstrate the effectiveness and efficiency of CGSA in solving the problem of parameter identification of chaotic system, and the improvement to GSA has been verified.

  11. Molecular identification of Cryptosporidium isolates from exotic pet animals in Japan.

    Science.gov (United States)

    Abe, Niichiro; Matsubara, Katsuki

    2015-04-30

    The Cryptosporidium horse genotype, a zoonotic protozoan parasite first found in a Prezewalski wild horse, has not been found in any other mammal but calves, horses, and humans. Hedgehogs, popular exotic pet animals in Japan, are a reservoir of two zoonotic Cryptosporidum: C. parvum and C. erinacei (previously known as the hedgehog genotype). Recently, after finding Cryptosporidium infection in a four-toed hedgehog (Atelerix albiventris), we identified the isolate genetically as the Cryptosporidium horse genotype. Its subtype (VIbA13) was the same as that of an isolate from a pet shop employee with severe clinical symptoms, as reported previously from sequencing analysis of the partial Cryptosporidum 60kDa glycoprotein gene sequence. The occurrence of this genotype in hedgehog indicates that the horse genotype has broad host specificity. This report is the first of a study identifying isolates from pet reptiles genetically in Japan. The study identified a new host (Teratoscincus scincus) in C. serpentis lizard genotype by sequencing analysis of partial SSU rRNA and actin genes. PMID:25801359

  12. Modeling and Identification of a Large Gap Magnetic Suspension System

    Science.gov (United States)

    Cox, David E. (Editor); Groom, Nelson J. (Editor); Hsiao, Min-Hung; Huang, Jen-Kuang

    1996-01-01

    This paper presents the results of modeling and system identification efforts on the NASA Large-Angle Magnetic Suspension Test Fixture (LAMSTF). The LAMSTF consists of a cylindrical permanent magnet which is levitated above a planar array of five electromagnets mounted in a circular configuration. The analytical model is first developed and open-loop characteristics are described. The system is shown to be highly unstable and requires feedback control in order to apply system identification. Limitations on modeling accuracy due to the effect of eddy-currents on the system are discussed. An algorithm is derived to identify a state-space model for the system from input/output data acquired during closed-loop operation. The algorithm is tested on both the baseline system and a perturbed system which has an increased presence of eddy currents. It is found that for the baseline system the analytic model adequately captures the dynamics, although the identified model improves the simulation accuracy. For the system perturbed by additional unmodeled eddy-currents the analytic model is no longer adequate and a higher-order model, determined through system identification, is required to accurately predict the system's time response.

  13. Immune System Toxicity and Immunotoxicity Hazard Identification

    Science.gov (United States)

    Exposure to chemicals may alter immune system health, increasing the risk of infections, allergy and autoimmune diseases. The chapter provides a concise overview of the immune system, host factors that affect immune system heal, and the effects that xenobiotic exposure may have ...

  14. Identification systems subject to plan cybersecurity

    International Nuclear Information System (INIS)

    The implementation of a Plan Cybersecurity ensures that systems and communications networks that perform functions related to both physical security such emergency action and their support systems, and interfaces that may affect them, are protected with an effective system against cyber attacks.

  15. A DNA-based registry for all animal species: the barcode index number (BIN system.

    Directory of Open Access Journals (Sweden)

    Sujeevan Ratnasingham

    Full Text Available Because many animal species are undescribed, and because the identification of known species is often difficult, interim taxonomic nomenclature has often been used in biodiversity analysis. By assigning individuals to presumptive species, called operational taxonomic units (OTUs, these systems speed investigations into the patterning of biodiversity and enable studies that would otherwise be impossible. Although OTUs have conventionally been separated through their morphological divergence, DNA-based delineations are not only feasible, but have important advantages. OTU designation can be automated, data can be readily archived, and results can be easily compared among investigations. This study exploits these attributes to develop a persistent, species-level taxonomic registry for the animal kingdom based on the analysis of patterns of nucleotide variation in the barcode region of the cytochrome c oxidase I (COI gene. It begins by examining the correspondence between groups of specimens identified to a species through prior taxonomic work and those inferred from the analysis of COI sequence variation using one new (RESL and four established (ABGD, CROP, GMYC, jMOTU algorithms. It subsequently describes the implementation, and structural attributes of the Barcode Index Number (BIN system. Aside from a pragmatic role in biodiversity assessments, BINs will aid revisionary taxonomy by flagging possible cases of synonymy, and by collating geographical information, descriptive metadata, and images for specimens that are likely to belong to the same species, even if it is undescribed. More than 274,000 BIN web pages are now available, creating a biodiversity resource that is positioned for rapid growth.

  16. Remote Laboratory and Animal Behaviour: An Interactive Open Field System

    Science.gov (United States)

    Fiore, Lorenzo; Ratti, Giovannino

    2007-01-01

    Remote laboratories can provide distant learners with practical acquisitions which would otherwise remain precluded. Our proposal here is a remote laboratory on a behavioural test (open field test), with the aim of introducing learners to the observation and analysis of stereotyped behaviour in animals. A real-time video of a mouse in an…

  17. A NEURAL NETWORK BASED IRIS RECOGNITION SYSTEM FOR PERSONAL IDENTIFICATION

    Directory of Open Access Journals (Sweden)

    Usham Dias

    2010-10-01

    Full Text Available This paper presents biometric personal identification based on iris recognition using artificial neural networks. Personal identification system consists of localization of the iris region, normalization, enhancement and then iris pattern recognition using neural network. In this paper, through results obtained, we have shown that a person’s left and right eye are unique. In this paper, we also show that the network is sensitive to the initial weights and that over-training gives bad results. We also propose a fast algorithm for the localization of the inner and outer boundaries of the iris region. Results of simulations illustrate the effectiveness of the neural system in personal identification. Finally a hardware iris recognition model is proposed and implementation aspects are discussed.

  18. A network identity authentication system based on Fingerprint identification technology

    Science.gov (United States)

    Xia, Hong-Bin; Xu, Wen-Bo; Liu, Yuan

    2005-10-01

    Fingerprint verification is one of the most reliable personal identification methods. However, most of the automatic fingerprint identification system (AFIS) is not run via Internet/Intranet environment to meet today's increasing Electric commerce requirements. This paper describes the design and implementation of the archetype system of identity authentication based on fingerprint biometrics technology, and the system can run via Internet environment. And in our system the COM and ASP technology are used to integrate Fingerprint technology with Web database technology, The Fingerprint image preprocessing algorithms are programmed into COM, which deployed on the internet information server. The system's design and structure are proposed, and the key points are discussed. The prototype system of identity authentication based on Fingerprint have been successfully tested and evaluated on our university's distant education applications in an internet environment.

  19. A Novel System for Non-Invasive Method of Animal Tracking and Classification in Designated Area Using Intelligent Camera System

    OpenAIRE

    S. Matuska; Hudec, R.; P. Kamencay; M. Benco; M. Radilova

    2016-01-01

    This paper proposed a novel system for non-invasive method of animal tracking and classification in designated area. The system is based on intelligent devices with cameras, which are situated in a designated area and a main computing unit (MCU) acting as a system master. Intelligent devices track animals and then send data to MCU to evaluation. The main purpose of this system is detection and classification of moving animals in a designated area and then creation of migration corridors of wi...

  20. Validity study of Animal-City Alternating Form Fluency Test in the identification of mild cognitive impairment and Alzheimer's disease

    Directory of Open Access Journals (Sweden)

    Yun-bo SHI

    2015-07-01

    Full Text Available Objective To identify the sensitivity and specificity of Animal-City Alternating Form Fluency Test (ACFT differentiating mild cognitive impairment (MCI and Alzheimer's disease (AD from normal controls.  Methods A total of 121 MCI patients, 104 AD patients and 104 healthy controls, who were matched in sex, age and education level, were enrolled in this study. They performed Animal Category Verbal Fluency Test (AFT, City Category Verbal Fluency Test (CFT and ACFT. A series of standard neuropsychological tests were also administered to reflect episodic memory, verbal ability, working memory, executive function and processing speed. The validity and related influencing factors of ACFT was evaluated.  Results Compared with control group, the ACFT correct number in MCI and AD groups reduced significantly (P = 0.000, 0.000. Receiver operating characteristic (ROC curve revealed the sensitivity and specificity of ACFT in discriminating MCI (P = 0.012, 0.030 and AD (P = 0.004, 0.003 from normal controls were higher than those of AFT and CFT. There was no correlation of correct number in ACFT with age and education (P > 0.05, for all. The correlations of ACFT with Stroop Color-Word Test (SCWT, Digital Symbol Substitution Test (DSST, Shape Trail Test (STT and Digit Span Test (DS, all of which reflected attention and executive function, were significantly closer than those of AFT and CFT (P < 0.05, for all. Conclusions ACFT is more efficient in early cognitive impairment identification than the other traditional category verbal fluency tests. It is a new variant form of category verbal fluency test that could assess cognitive function and could be broadly applied in clinical practice. DOI: 10.3969/j.issn.1672-6731.2015.07.010

  1. Identification of key performance indicators for on-farm animal welfare incidents: possible tools for early warning and prevention

    Directory of Open Access Journals (Sweden)

    Kelly Patricia C

    2011-10-01

    Full Text Available Abstract Background The objective of this study was to describe aspects of case study herds investigated by the Department of Agriculture, Fisheries and Food (DAFF in which animal welfare incidents occurred and to identify key performance indicators (KPIs that can be monitored to enhance the Early Warning System (EWS. Despite an EWS being in place for a number of years, animal welfare incidents continue to occur. Questionnaires regarding welfare incidents were sent to Superintending Veterinary Inspectors (SVIs, resulting in 18 herds being chosen as case study herds, 12 of which had a clearly defined welfare incident date. For each study herd, data on six potential KPIs were extracted from DAFF databases. The KPIs for those herds with a clearly defined welfare incident date were studied for a consecutive four year window, with the fourth year being the 'incident year', when the welfare incident was disclosed. For study herds without a clearly defined welfare incident date, the KPIs were determined on a yearly basis between 2001 and 2009. Results We found that the late registration of calves, the use of on-farm burial as a method of carcase disposal, an increasing number of moves to knackeries over time and records of animals moved to 'herd unknown' were notable on the case farms. Conclusion Four KPIs were prominent on the case study farms and warrant further investigation in control herds to determine their potential to provide a framework for refining current systems of early warning and prevention.

  2. An Arbitrary Waveform Wearable Neuro-stimulator System for Neurophysiology Research on Freely Behaving Animals

    OpenAIRE

    Samani, Mohsen Mosayebi; Mahnam, Amin; Hosseini, Nasrin

    2014-01-01

    Portable wireless neuro-stimulators have been developed to facilitate long-term cognitive and behavioral studies on the central nervous system in freely moving animals. These stimulators can provide precisely controllable input(s) to the nervous system, without distracting the animal attention with cables connected to its body. In this study, a low power backpack neuro-stimulator was developed for animal brain researches that can provides arbitrary stimulus waveforms for the stimulation, whil...

  3. A role of advanced image data logger systems in marine animal studies

    OpenAIRE

    Naito, Yasuhiko

    2006-01-01

    To fulfill information gaps of underwater animal behavior, variety of animal-borne observation systems have been developed in last several decades, which revealed diving behavior, foraging behavior of many endotherms, particularly seals and penguins by providing information on many dive parameters, such as dive depth, dive angles, dive profiles, swim speed, body motion, body postures, ambient temperatures, 3D dive paths and so on. Above advanced animal-borne systems supported us to obtain rel...

  4. Music Identification System Using MPEG-7 Audio Signature Descriptors

    Directory of Open Access Journals (Sweden)

    Shingchern D. You

    2013-01-01

    Full Text Available This paper describes a multiresolution system based on MPEG-7 audio signature descriptors for music identification. Such an identification system may be used to detect illegally copied music circulated over the Internet. In the proposed system, low-resolution descriptors are used to search likely candidates, and then full-resolution descriptors are used to identify the unknown (query audio. With this arrangement, the proposed system achieves both high speed and high accuracy. To deal with the problem that a piece of query audio may not be inside the system’s database, we suggest two different methods to find the decision threshold. Simulation results show that the proposed method II can achieve an accuracy of 99.4% for query inputs both inside and outside the database. Overall, it is highly possible to use the proposed system for copyright control.

  5. Compressed Sensing for Denoising in Adaptive System Identification

    CERN Document Server

    Hosseini, Seyed Hossein

    2012-01-01

    We propose a new technique for adaptive identification of sparse systems based on the compressed sensing (CS) theory. We manipulate the transmitted pilot (input signal) and the received signal such that the weights of adaptive filter approach the compressed version of the sparse system instead of the original system. To this end, we use random filter structure at the transmitter to form the measurement matrix according to the CS framework. The original sparse system can be reconstructed by the conventional recovery algorithms. As a result, the denoising property of CS can be deployed in the proposed method at the recovery stage. The experiments indicate significant performance improvement of proposed method compared to the conventional LMS method which directly identifies the sparse system. Furthermore, at low levels of sparsity, our method outperforms a specialized identification algorithm that promotes sparsity.

  6. Neurofuzzy evolutionary models applied to non-linear systems identification

    International Nuclear Information System (INIS)

    Neurofuzzy models are attractive to system identification to combine learning and structural features of neural network and the exposition based in rules associated to fuzzy systems. Genetic programming is a genetic algorithm extension where individuals are computer programs. It was proposed a modeling scheme where it's created, through genetic programming, a population of neurofuzzy systems capable to identify a given non-linear system. The data obtained when applying the resulting system to the identification of a simple non-linear function allows to conclude the technique has a quite promising application potential, and that are necessary improvements so that solutions can be obtained with a smaller number of generations and consequently in a smaller space of time. (author)

  7. Friction ridge skin - Automated Fingerprint Identification System (AFIS)

    NARCIS (Netherlands)

    Meuwly, Didier

    2009-01-01

    This contribution describes the development and the forensic use of automated fingerprint identification systems (AFISs). AFISs were initially developed in order to overcome the limitations of the paper-based fingerprint collections, by digitizing the ten-print cards in computerized databases and to

  8. Quadrotor system identification using the multivariate multiplex b-spline

    NARCIS (Netherlands)

    Visser, T.; De Visser, C.C.; Van Kampen, E.J.

    2015-01-01

    A novel method for aircraft system identification is presented that is based on a new multivariate spline type; the multivariate multiplex B-spline. The multivariate multiplex B-spline is a generalization of the recently introduced tensor-simplex B-spline. Multivariate multiplex splines obtain simil

  9. Time-Delay System Identification Using Genetic Algorithm

    DEFF Research Database (Denmark)

    Yang, Zhenyu; Seested, Glen Thane

    2013-01-01

    problem through an identification approach using the real coded Genetic Algorithm (GA). The desired FOPDT/SOPDT model is directly identified based on the measured system's input and output data. In order to evaluate the quality and performance of this GA-based approach, the proposed method is compared...

  10. Comparison of System Identification Methods using Ambient Bridge Test Data

    DEFF Research Database (Denmark)

    Andersen, P.; Peeters, B.; Hermans, L.;

    In this paper the performance of four different system identification methods is compared using operational data obtained from an ambient vibration test of the Swiss Z24 highway bridge. The four methods are the frequency domain based peak-picking methods, the polyreference LSCE method, the...

  11. Comparison of System Identification Methods using Ambient Bridge Test Data

    DEFF Research Database (Denmark)

    Andersen, P.; Brincker, Rune; Peeters, B.;

    1999-01-01

    In this paper the performance of four different system identification methods is compared using operational data obtained from an ambient vibration test of the Swiss Z24 highway bridge. The four methods are the frequency domain based peak-picking methods, the polyreference LSCE method, the...

  12. Hyperpolarized singlet NMR on a small animal imaging system

    OpenAIRE

    Laustsen, Christoffer; Pileio, Giuseppe; Tayler, Michael C. D.; Brown, Lynda J.; Brown, Richard C. D.; Levitt, Malcolm H.; Ardenkjaer-Larsen, Jan H.

    2012-01-01

    Nuclear spin hyperpolarization makes a significant advance toward overcoming the sensitivity limitations of in vivo magnetic resonance imaging, particularly in the case of low-gamma nuclei. The sensitivity may be improved further by storing the hyperpolarization in slowly relaxing singlet populations of spin-1/2 pairs. Here, we report hyperpolarized 13C spin order transferred into and retrieved from singlet spin order using a small animal magnetic resonance imaging scanner. For spins in sites...

  13. ras activation in human tumors and in animal model systems.

    OpenAIRE

    Corominas, M; Sloan, S R; Leon, J.; Kamino, H; Newcomb, E W; Pellicer, A

    1991-01-01

    Environmental agents such as radiation and chemicals are known to cause genetic damage. Alterations in a limited set of cellular genes called proto-oncogenes lead to unregulated proliferation and differentiation. We have studied the role of the ras gene family in carcinogenesis using two different animal models. In one case, thymic lymphomas were induced in mice by either gamma or neutron radiation, and in the other, keratoacanthomas were induced in rabbit skin with dimethylbezanthracene. Hum...

  14. Definition of animal breeding goals for sustainable production systems

    OpenAIRE

    Olesen, I.; Groen, A.F.; GJERDE, B.

    2000-01-01

    What we do is determined by the way we "view" a complex issue and what sample of issues or events we choose to deal with. In this paper, a model based on a communal, cultural, or people-centered worldview, informed by a subjective epistemology and a holistic ontology, is considered. Definitions and interpretations of sustainable agriculture are reviewed. Common elements in published definitions of sustainable agriculture and animal production among those who seek long-term and equitable solut...

  15. Piecewise Linear Identification of Nonlinear Systems

    OpenAIRE

    Billings, S A; Voon, W.S.F.

    1986-01-01

    Methods of identifying a series of piecewise linear models which approximate to a nonlinear system over some operating range are investigated. Both spatial linear models and models with signal dependent parameters are considered.

  16. Intelligent system for accident identification in NPP

    International Nuclear Information System (INIS)

    Accidental situations in NPP are great concern for operators, the facility, regulatory bodies and the environmental. This work proposes a design of intelligent system aimed to assist the operator in the process of decision making initiator events with higher relative contribution to the reactor core damage occur. The intelligent System uses the results of the pre-operational Probabilistic safety Assessment and the Thermal hydraulic Safety Analysis of the NPP Juragua as source for building its knowledge base. The nucleus of the system is presented as a design of an intelligent hybrid from the combination of the artificial intelligence techniques fuzzy logic and artificial neural networks. The system works with variables from the process of the first circuit, second circuit and the containment and it is presented as a model for the integration of safety analyses in the process of decision making by the operator when tackling with accidental situations

  17. Rotation–Invariant Fingerprint Identification System

    OpenAIRE

    R. M.Mandi; S. S. Lokhande

    2012-01-01

    The fingerprint is the most widely used Biometric. The main focus of Intelligent Fingerprint Recognition System is to improve accuracy and efficiency.This system uses an algorithm for recovering translation parameters from two fingerprint images of the same individual that differ by Scaling, Rotation, and Transformation also known as similarity transformation or Rotation-scale-Translation (RST) Transformation. This algorithm is very useful to identify two fingerprint images of the same indivi...

  18. Innovation Policy Design: Identification of Systemic Problems

    OpenAIRE

    Edquist, Charles

    2011-01-01

    ‘Activities’ in innovation systems are the determinants of the development and diffusion of innovations. Examples are R&D, provision of organizations and institutions, financing of innovations, incubation, etc. These activities are partly performed by private organizations and partly by public organizations, the latter performing tasks that constitute innovation policy. As a basis for innovation policy, the problems (failures) in the systems must be identified. This paper focuses upon the des...

  19. Variance and bias computation for enhanced system identification

    Science.gov (United States)

    Bergmann, Martin; Longman, Richard W.; Juang, Jer-Nan

    1989-01-01

    A study is made of the use of a series of variance and bias confidence criteria recently developed for the eigensystem realization algorithm (ERA) identification technique. The criteria are shown to be very effective, not only for indicating the accuracy of the identification results (especially in terms of confidence intervals), but also for helping the ERA user to obtain better results. They help determine the best sample interval, the true system order, how much data to use and whether to introduce gaps in the data used, what dimension Hankel matrix to use, and how to limit the bias or correct for bias in the estimates.

  20. Plants and Animals as Concept Generators for the Development of Biomimetic Cable Entry Systems

    Institute of Scientific and Technical Information of China (English)

    Tom Masseiter; Uwe Scharf; Thomas Speck

    2008-01-01

    Many animals and plants have high potential to serve as concept generators for developing biomimetic materials and structures. We present some ideas based on structural and functional properties of plants and animals that led to the development of two types of biomimetic cable entry systems. Those systems have been realized on the level of functional demonstrators.

  1. 40 CFR 792.90 - Animal and other test system care.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 31 2010-07-01 2010-07-01 true Animal and other test system care. 792... SUBSTANCES CONTROL ACT (CONTINUED) GOOD LABORATORY PRACTICE STANDARDS Testing Facilities Operation § 792.90 Animal and other test system care. (a) There shall be standard operating procedures for the...

  2. Performance metrics for the evaluation of hyperspectral chemical identification systems

    Science.gov (United States)

    Truslow, Eric; Golowich, Steven; Manolakis, Dimitris; Ingle, Vinay

    2016-02-01

    Remote sensing of chemical vapor plumes is a difficult but important task for many military and civilian applications. Hyperspectral sensors operating in the long-wave infrared regime have well-demonstrated detection capabilities. However, the identification of a plume's chemical constituents, based on a chemical library, is a multiple hypothesis testing problem which standard detection metrics do not fully describe. We propose using an additional performance metric for identification based on the so-called Dice index. Our approach partitions and weights a confusion matrix to develop both the standard detection metrics and identification metric. Using the proposed metrics, we demonstrate that the intuitive system design of a detector bank followed by an identifier is indeed justified when incorporating performance information beyond the standard detection metrics.

  3. Rotation–Invariant Fingerprint Identification System

    Directory of Open Access Journals (Sweden)

    R. M.Mandi

    2012-07-01

    Full Text Available The fingerprint is the most widely used Biometric. The main focus of Intelligent Fingerprint Recognition System is to improve accuracy and efficiency.This system uses an algorithm for recovering translation parameters from two fingerprint images of the same individual that differ by Scaling, Rotation, and Transformation also known as similarity transformation or Rotation-scale-Translation (RST Transformation. This algorithm is very useful to identify two fingerprint images of the same individual which are misaligned by small transformations such as rotation or translation or scaling.The algorithm uses minutiae based matching to compare input fingerprint image with the template fingerprint image stored in the database. The algorithm uses various standard preprocessing steps. It includes all the stages to extract the minutiae. Maximum correlation between original and sensed image is found. The proposed system is tested on the pilot database.

  4. Los Alamos Scientific Laboratory electronic vehicle identification system

    International Nuclear Information System (INIS)

    A three-digit electronic identification system is described. Digits may be decimal (1000 combinations) or hexidecimal (8192 combinations). Battery-powered transponders are interrogated with a lower-power (1 W) radio signal. Line-of-sight interrogations up to 33 m (100 ft) are possible. Successful interrogations up to 7 m (20 ft) are possible for concealed transponders (that is, in the engine compartment). Vehicles moving at high rates of speed can be interrogated. This system provides data in a computer-compatible RS232 format. The system can be used for other applications with little or no modification. A similar system is in present use for identification and temperature monitoring of livestock. No unforeseen problems exist for expanding the coding scheme to identify larger numbers of objects

  5. Identification of Backlash Type Hysteretic Systems Based on Particle Filter

    Science.gov (United States)

    Masuda, Tetsuya; Sugie, Toshiharu

    This paper considers the system identification problem for hysteresis systems. This problem plays an important role in achieving better control performance, because many actuators have hysteresis property. This paper proposes a method to identify linear dynamical systems having input hysteresis property of backlash type. The method is based on particle filter, which is known for its applicability to a wide class of nonlinear systems. Numerical examples are given to demonstrate the effectiveness of the proposed method in detail. Furthermore, experimental validation is performed for a DC servo motor system.

  6. INTEGRATING RADIO FREQUENCY IDENTIFICATION TECHNOLOGY IN ACADEMIC MANAGEMENT SYSTEM

    OpenAIRE

    Zainab Rasheed Mirza; M. Nawaz Brohi

    2014-01-01

    The purpose of this study is building a web and windows based intelligent system using web technologies, biometric and Radio Frequency Identification technologies (RFID) to strengthen an Academic Management System (AMS) in a campus for monitoring and improving academic performance of teachers and students. A campus mobile phone application will allow guardians to monitor student’s movement history at campus, e-payments and food choices at canteen, class attendance, exam attendance and a...

  7. Subspace identification of large-scale interconnected systems

    OpenAIRE

    Haber, Aleksandar; Verhaegen, Michel

    2013-01-01

    We propose a decentralized subspace algorithm for identification of large-scale, interconnected systems that are described by sparse (multi) banded state-space matrices. First, we prove that the state of a local subsystem can be approximated by a linear combination of inputs and outputs of the local subsystems that are in its neighborhood. Furthermore, we prove that for interconnected systems with well-conditioned, finite-time observability Gramians (or observability matrices), the size of th...

  8. Low cost fingerprint matching system for biometric identification

    OpenAIRE

    José Torra, Ferran

    2015-01-01

    We plan to devise low cost techniques for figerprint identification in a reduced community, where sensibility and specificity have different importance. Techniques should be easily implementable in apps running in android machines. The objective of this project is to develop a system required by the Doctors Without Borders NGO that consists in managing the medical histories of a refugee camp in an easier way. Specifically, this system was already designed in another final degree project wi...

  9. Collaborative evaluation of the Abbott yeast identification system.

    OpenAIRE

    Cooper, B. H.; Prowant, S; B. Alexander; Brunson, D H

    1984-01-01

    The Abbott yeast identification system (Abbott Laboratories, Diagnostics Division, Irving, Tex.) is a 24-h, instrumental method for identifying medically important yeasts, based on matrix analysis of 19 biochemical reactions and the germ tube test. The system was evaluated in two clinical laboratories by using 179 coded isolates, which included a high percentage of the less frequently encountered species. Based upon results with these coded isolates and from previously obtained laboratory dat...

  10. A Reliable Identification System for Red Palm Weevil

    Directory of Open Access Journals (Sweden)

    Saleh Mufleh Al-Saqer

    2012-01-01

    Full Text Available Problem statement: Red Palm Weevil (RPW is a widely found pest among palm trees and is known to cause significant losses every year to palm growers. Existing identification techniques for RPW comprise of using traps with pheromones to detect these pests. However, these traditional methods are labor-intensive, expensive to implement and unreliable for early detection of RPW infestation. Early detection of these pests would provide the best opportunity to eradicate them and minimize the potential losses of palm trees. Approach: In this study, a reliable identification system is developed to identify RPW by using only a small number of image descriptors in combination with neural network models. The neural networks were developed by using between three to nine image descriptors as inputs and a large database of insects’ images was used for training. Three different training ratios ranging from 25-75% were used and the network was trained by two different algorithms. Further, several scenarios were formulated to test the efficacy and reliability of the newly developed identification system. Results: The results indicate that the identification system developed in this study is capable of 100% recognition of RPW and 93% recognition of other insects in the database by taking as input only three easily-calculable image descriptors. Further, the average training times for these networks was 13 sec and the testing time for a single image was only 0.015 sec. Conclusion: The new system developed in this study provided reliable identification for RPW and was found to be up to 14 times faster in training and three times faster in testing of insects’ images.

  11. PINS: A field PGNAA chemical identification system

    Energy Technology Data Exchange (ETDEWEB)

    Gehrke, R.J.; Caffrey, A.J.; Krebs, K.M.; Watts, K.D.; Oates, M.A.; McLaughlin, G.D. (Idaho National Engineering Lab., Idaho Falls (United States))

    1993-01-01

    Prompt gamma neutron activation analysis (PGNAA) has long been employed for chemical analysis in process streams and laboratories. Recent improvements in the design of germanium gamma-ray spectrometers, the miniaturization of their associated components, and the development of [open quotes]powerful[close quotes] notebook personal computers (PCs) permit the design of PGNAA systems for truly portable in-field use. Portable isotopic neutron spectrometry (PINS) (of gamma rays) was developed at the Idaho National Engineering Laboratory for in-field inspection and verification of chemical weapon inventories where a system that can be carried into an area inaccessible by wheeled transport (rough terrain, confined spaces, etc.) and that is capable of operating on battery power is required. PINS is now also finding use outside of military applications.

  12. Single-Metabolite Bio-Nano-Sensors and System for Remote Monitoring in Animal Models

    OpenAIRE

    Carrara, Sandro; Bolomey, Léandre; Boero, Cristina; Cavallini, Andrea; Meurville, Eric; De Micheli, Giovanni; Rezzonico, Tanja; Proietti, Michele; Grassi, Fabio

    2011-01-01

    A novel system for remote monitoring of metabolism in animal model is proposed in this paper. The system is obtained by integrating Bio-Nano-Sensors to detect single- metabolites, an electrochemical front-end made with off- the-shelf components, an RF communication sub-system, and an antenna of new design. The system has been calibrated and tested for continuous monitoring of four different metabolites: glucose, lactate, glutamate, and adenosine triphosphate (ATP). Tests with animal models (m...

  13. Remote System for Monitoring Animal Models With Single-Metabolite Bio-Nano-Sensors

    OpenAIRE

    Carrara, Sandro; Bolomey, Léandre; Boero, Cristina; Cavallini, Andrea; Meurville, Eric; De Micheli, Giovanni; Rezzonico Jost, Tanja; Proietti, Michele; Grassi, Fabio

    2013-01-01

    A novel system for remote monitoring of metabolism in an animal model is proposed in this paper. The system is obtained by integrating bio-nano-sensors to detect single- metabolites, an electrochemical front-end made with off-the-shelf components, a radio frequency communication sub-system, and an antenna of new design. The system has been calibrated and tested for continuous monitoring of four different metabolites: glucose, lactate, glutamate, and adenosine triphosphate. Tests using animal ...

  14. Citizens’ View on Veal Calves’ Fattening System in Italy and Animal Welfare

    Directory of Open Access Journals (Sweden)

    Marta Brscic

    2013-09-01

    Full Text Available Aims of this study were to assess citizens’ view on the current veal calves’ fattening system in Italy and on animal welfare, and to find relationships with veal meat consumption. Socio-demographic characteristics, veal meat consumption habits, knowledge of veal calves rearing system and animal welfare attitudes of 100 citizens were investigated through a questionnaire submitted on a voluntary base in supermarkets/butcher shops. Results showed that 61 respondents were veal meat consumers and the remaining 39 were non-consumers. A large proportion of respondents were aware of the modern veal calves rearing system but their knowledge as such did not affect veal meat consumption. Non-consumers declared they didn’t like veal meat organoleptic characteristics, opposed the production system or considered it too expensive. Most citizens sustained animal welfare but no correlations were found between concerns for animal welfare and veal meat consumption/purchase (rs 0.05. Citizens conceptualized animal welfare through the aspects of care animals received by the farmer and veterinarian and of healthy feed for animals. It could be concluded that consumers don’t really think of animal welfare while buying or having meat, and they still have idealised notions of naturality, traditional farming, free-range and small scale production linked to farm animal production.

  15. Heavy ion identification system for a magnetic spectrometer

    International Nuclear Information System (INIS)

    The magnetic spectrometer of ALICE at Orsay, has been equipped with gas counters allowing a complete identification in mass, atomic number and energy for a few MeV/nucleon heavy ions. The detection system covers the whole entrance solid angle of 4.7 msr and 20% of the energy spectrum in the focal plane for a given ion. The system is equipped with avalanche parallel plate counters giving the time of flight in the magnet and also the entrance position. Behind the spectrometer, a large ionization chamber measures two energy losses and the residual energy. The position of the particle is given by a proportional counter placed in the focal plane. The system accepts a few thousands counts per second and can give a good identification in mass A/ΔA=80, in atomic number Z approximately 10.30 and measures the energy with a resolution better than 2.10-3

  16. Reduced Complexity Volterra Models for Nonlinear System Identification

    Directory of Open Access Journals (Sweden)

    Hacıoğlu Rıfat

    2001-01-01

    Full Text Available A broad class of nonlinear systems and filters can be modeled by the Volterra series representation. However, its practical use in nonlinear system identification is sometimes limited due to the large number of parameters associated with the Volterra filter′s structure. The parametric complexity also complicates design procedures based upon such a model. This limitation for system identification is addressed in this paper using a Fixed Pole Expansion Technique (FPET within the Volterra model structure. The FPET approach employs orthonormal basis functions derived from fixed (real or complex pole locations to expand the Volterra kernels and reduce the number of estimated parameters. That the performance of FPET can considerably reduce the number of estimated parameters is demonstrated by a digital satellite channel example in which we use the proposed method to identify the channel dynamics. Furthermore, a gradient-descent procedure that adaptively selects the pole locations in the FPET structure is developed in the paper.

  17. Asymptotic inference in system identification for the atom maser

    CERN Document Server

    Catana, Catalin; Guta, Madalin

    2011-01-01

    System identification is an integrant part of control theory and plays an increasing role in quantum engineering. In the quantum set-up, system identification is usually equated to process tomography, i.e. estimating a channel by probing it repeatedly with different input states. However for quantum dynamical systems like quantum Markov processes, it is more natural to consider the estimation based on continuous measurements of the output, with a given input which may be stationary. We address this problem using asymptotic statistics tools, for the specific example of estimating the Rabi frequency of an atom maser. We compute the Fisher information of different measurement processes as well as the quantum Fisher information of the atom maser, and establish the local asymptotic normality of these statistical models. The statistical notions can be expressed in terms of spectral properties of certain deformed Markov generators and the connection to large deviations is briefly discussed.

  18. Case studies using the United States Coast Guard's Oil Identification System for petroleum spill source identification

    International Nuclear Information System (INIS)

    The Oil Identification System (OIS) was developed in the 1970's at the Coast Guard Research and Development Center, to determine the unique, intrinsic properties which would allow the matching of a spilled oil with its correct source. The Central Oil Identification Laboratory (COIL) was established in 1978 as the operating facility to implement the OIS. The OIS encompasses four analytical methods; thin layer chromatography, fluorescence spectroscopy, infrared spectroscopy and gas chromatography. A sample can be studied according to each individual method or multi-methods approach can be chosen if no single technique gives unequivocal results. Combined these methods are greater than 99% effective. The authors recently utilized the OIS and the COIL for three petroleum spill investigations in New York. As part of the investigation to determine the source(s) of several different petroleum product spills, OIS was conducted along with a review of groundwater sample chromatograms

  19. Microbiomes: unifying animal and plant systems through the lens of community ecology theory

    OpenAIRE

    Natalie eChristian; Briana Kathleen Whitaker; Keith eClay

    2015-01-01

    The field of microbiome research is arguably one of the fastest growing in biology. Bacteria feature prominently in studies on animal health, but fungi appear to be the more prominent functional symbionts for plants. Despite the similarities in the ecological organization and evolutionary importance of animal-bacterial and plant-fungal microbiomes, there is a general failure across disciplines to integrate the advances made in each system. Researchers studying bacterial symbionts in animals b...

  20. Microbiomes: unifying animal and plant systems through the lens of community ecology theory

    OpenAIRE

    Christian, Natalie; Whitaker, Briana K.; Clay, Keith

    2015-01-01

    The field of microbiome research is arguably one of the fastest growing in biology. Bacteria feature prominently in studies on animal health, but fungi appear to be the more prominent functional symbionts for plants. Despite the similarities in the ecological organization and evolutionary importance of animal-bacterial and plant–fungal microbiomes, there is a general failure across disciplines to integrate the advances made in each system. Researchers studying bacterial symbionts in animals b...

  1. Comparing Different Fault Identification Algorithms in Distributed Power System

    Science.gov (United States)

    Alkaabi, Salim

    A power system is a huge complex system that delivers the electrical power from the generation units to the consumers. As the demand for electrical power increases, distributed power generation was introduced to the power system. Faults may occur in the power system at any time in different locations. These faults cause a huge damage to the system as they might lead to full failure of the power system. Using distributed generation in the power system made it even harder to identify the location of the faults in the system. The main objective of this work is to test the different fault location identification algorithms while tested on a power system with the different amount of power injected using distributed generators. As faults may lead the system to full failure, this is an important area for research. In this thesis different fault location identification algorithms have been tested and compared while the different amount of power is injected from distributed generators. The algorithms were tested on IEEE 34 node test feeder using MATLAB and the results were compared to find when these algorithms might fail and the reliability of these methods.

  2. System Identification in Presence of Outliers.

    Science.gov (United States)

    Yu, Chao; Wang, Qing-Guo; Zhang, Dan; Wang, Lei; Huang, Jiangshuai

    2016-05-01

    The outlier detection problem for dynamic systems is formulated as a matrix decomposition problem with low rank and sparse matrices, and further recast as a semidefinite programming problem. A fast algorithm is presented to solve the resulting problem while keeping the solution matrix structure and it can greatly reduce the computational cost over the standard interior-point method. The computational burden is further reduced by proper construction of subsets of the raw data without violating low-rank property of the involved matrix. The proposed method can make exact detection of outliers in case of no or little noise in output observations. In case of significant noise, a novel approach based on under-sampling with averaging is developed to denoise while retaining the saliency of outliers, and so-filtered data enables successful outlier detection with the proposed method while the existing filtering methods fail. Use of recovered "clean" data from the proposed method can give much better parameter estimation compared with that based on the raw data. PMID:26011875

  3. Integration of a transient identification system in the Human System Interface Laboratory

    International Nuclear Information System (INIS)

    This paper presents the integration of an Transient Identification System in the Human System Interface Laboratory (HSIL). The system exploits the excellent performance of multilayer Artificial Neural Networks (ANN). To show the results was developed and included into the simulator a graphical interface. This interface was developed following the simulator standards. In order to validate the method, a Nuclear Power Plant (NPP) transient identification problem comprising 5 postulated accidents, simulated for a pressurized water reactor, was proposed in the validation process. Obtained results reveal the ability of the method in dealing with both dynamic identification of transients and correct 'don't know' response. (author)

  4. Identification and functional analysis of olfactory receptor family reveal unusual characteristics of the olfactory system in the migratory locust

    OpenAIRE

    Wang, Zhifeng; Yang, Pengcheng; Chen, Dafeng; Jiang, Feng; Li, Yan; Wang, Xianhui; Kang, Le

    2015-01-01

    Locusts represent the excellent model of insect olfaction because the animals are equipped with an unusual olfactory system and display remarkable density-dependent olfactory plasticity. However, information regarding receptor molecules involved in the olfactory perception of locusts is very limited. On the basis of genome sequence and antennal transcriptome of the migratory locust, we conduct the identification and functional analysis of two olfactory receptor families: odorant receptors (OR...

  5. System identification methods for metal rubber devices

    Science.gov (United States)

    Zhang, B.; Lang, Z. Q.; Billings, S. A.; Tomlinson, G. R.; Rongong, J. A.

    2013-08-01

    Metal rubber (MR) devices, a new wire mesh material, have been extensively used in recent years due to several unique properties especially in adverse environments. Although many practical studies have been completed, the related theoretical research on metal rubber is still in its infancy. In this paper, a semi-constitutive dynamic model that involves nonlinear elastic stiffness, nonlinear viscous damping and bilinear hysteresis Coulomb damping is adopted to model MR devices. The model is first approximated by representing the bilinear hysteresis damping as Chebyshev polynomials of the first kind and then generalised by taking into account the effects of noises. A very efficient systematic procedure based on the orthogonal least squares (OLS) algorithm, the adjustable prediction error sum of squares (APRESS) criterion and the nonlinear model validity tests is proposed for model structure detection and parameter estimation of MR devices for the first time. The OLS algorithm provides a powerful tool to effectively select the significant model terms step by step, one at a time, by orthogonalising the associated terms and maximising the error reduction ratio, in a forward stepwise manner. The APRESS statistic regularises the OLS algorithm to facilitate the determination of the optimal number of model terms that should be included into the model. And whether the final identified dynamic model is adequate and acceptable is determined by the model validity tests. Because of the orthogonal property of the OLS algorithm, the selection of the dynamic model terms and noise model terms are totally decoupled and the approach also leads to a parsimonious model. Numerical ill-conditioning problems which can arise in the conventional least squares algorithm can be avoided as well. The methods of choosing the sampling interval for nonlinear systems are also incorporated into the approach. Finally by utilising the response of a cylindrical MR specimen, it is shown how the model

  6. SYSTEM IDENTIFICATION AND CONTROL IN ELECTRICAL ENGINEERING USING NEURAL NETWORKS

    Directory of Open Access Journals (Sweden)

    POOJA KHATRI

    2013-03-01

    Full Text Available Neural networks offer an alternative approach both for identification and control of nonlinear processes in process engineering. The lack of software tools for the design of controllers based on neural network models is particularly pronounced in this field. SIMULINK is properly a widely used graphical code development environment which allows system-level developers to perform rapid prototyping and testing. Such graphical based programming environment involves block-based code development and offers a more intuitive approach to modeling and control task in a great variety of engineering disciplines. In this paper a review of SIMULINK based Neural Tool has been done for analysis and design of multivariable neural based control systems. Application areas of ANNs include system identification and control (vehicle control, process control, game-playing and decision making (backgammon, chess, racing, pattern recognition (radar systems, face identification, object recognition, sequence recognition (gesture, speech, handwritten text recognition, medical diagnosis, financial applications,knowledge discovery in databases,visualization and filtering.

  7. Data-Driven Photovoltaic System Modeling Based on Nonlinear System Identification

    Directory of Open Access Journals (Sweden)

    Ayedh Alqahtani

    2016-01-01

    Full Text Available Solar photovoltaic (PV energy sources are rapidly gaining potential growth and popularity compared to conventional fossil fuel sources. As the merging of PV systems with existing power sources increases, reliable and accurate PV system identification is essential, to address the highly nonlinear change in PV system dynamic and operational characteristics. This paper deals with the identification of a PV system characteristic with a switch-mode power converter. Measured input-output data are collected from a real PV panel to be used for the identification. The data are divided into estimation and validation sets. The identification methodology is discussed. A Hammerstein-Wiener model is identified and selected due to its suitability to best capture the PV system dynamics, and results and discussion are provided to demonstrate the accuracy of the selected model structure.

  8. Veterinary information management system (VIMS) in the process of notification and management of animal diseases

    OpenAIRE

    Plavšić Budimir; Nedić D.; Mićović Z.; Tešić M.; Stanojević S.; Ašanin Ružica; Krnjaić D.; Tajdić Nada; Milanović S.

    2009-01-01

    A prerequisite to the development of an efficient animal health, food safety and traceability management system in the animal food production chain is the implementation of an integrated veterinary informational management system (VIMS) capable for the capture, storage, analysis and retrieval of data and providing the opportunity for the cumulative gathering of the knowledge and capability for its competent interpretation. Such a system will enable collecting appropriate data, including quali...

  9. Rcos.java: a simulated operating system with animations

    OpenAIRE

    Jones, David; Newman, Andrew

    2001-01-01

    RCOS.java (Ron Chernich's Operating System) is a Java-based, simulated operating system designed to address student difficulties in understanding operating systems concepts. This paper describes the rationale, design, features and planned use of RCOS.java. The intent with RCOS.java is to emphasise active, student-based learning and the development of the higher level learning skills of analysis, synthesis, evaluation or problem solving.

  10. Thruster Modelling for Underwater Vehicle Using System Identification Method

    Directory of Open Access Journals (Sweden)

    Mohd Shahrieel Mohd Aras

    2013-05-01

    Full Text Available This paper describes a study of thruster modelling for a remotely operated underwater vehicle (ROV by system identification using Microbox 2000/2000C. Microbox 2000/2000C is an XPC target machine device to interface between an ROV thruster with the MATLAB 2009 software. In this project, a model of the thruster will be developed first so that the system identification toolbox in MATLAB can be used. This project also presents a comparison of mathematical and empirical modelling. The experiments were carried out by using a mini compressor as a dummy depth pressure applied to a pressure sensor. The thruster model will thrust and submerge until it reaches a set point and maintain the set point depth. The depth was based on pressure sensor measurement. A conventional proportional controller was used in this project and the results gathered justified its selection.

  11. Time domain system identification of unknown initial conditions

    Institute of Scientific and Technical Information of China (English)

    SUNG Wen-pei; MATZEN Vernon C.; SHIH Ming-hsiang

    2004-01-01

    System identification is a method for using measured data to create or improve a mathematical model of the object being tested. From the measured data however, noise is noticed at the beginning of the response. One solution to avoid this noise problem is to skip the noisy data and then use the initial conditions as active parameters, to be found by using the system identification process. This paper describes the development of the equations for setting up the initial conditions as active parameters. The simulated data and response data from actual shear buildings were used to prove the accuracy of both the algorithm and the computer program, which include the initial conditions as active parameters. The numerical and experimental model analysis showed that the value of mass, stiffness and frequency were very reasonable and that the computed acceleration and measured acceleration matched very well.

  12. FPGA Implementation of NLMS Algorithm for Identification of unknown system

    Directory of Open Access Journals (Sweden)

    K. R. Rekha,

    2010-11-01

    Full Text Available This paper proposes a VHDL implementation of a variable step size Least Mean Square (NLMS adaptive algorithm. The envisaged application is the identification of an unknown system. The good convergence of NLMS algorithm has made us to choose it. It also has good stability. Adaptive filtering constitutes one of the core technologies in digital signal processing and finds numerous application areas in science as well as in industry. Adaptive filtering techniques are used in a wide range of applications, including system identification, adaptive equalization, adaptive noise cancellation, wire less communication and echo cancellation. A HDL implementation is developed for a 4th order NLMS adaptive filter. As compared conventional LMS it has been proven that NLMS Algorithm has good behavior. ModelSim simulations results altogether with plots obtained in Matlab prove the same.

  13. Systems Biology in Animal Breeding: Identifying relationships among markers, genes, and phenotypes

    Science.gov (United States)

    The Breeding and Genetics Symposium titled “Systems Biology in Animal Breeding: Identifying relationships among markers, genes, and phenotypes” was held at the Joint Annual Meeting of the American Dairy Science Association and the American Society of Animal Science in Phoenix, AZ, July 15 to 19, 201...

  14. Developing a Speaker Identification System for the DARPA RATS Project

    DEFF Research Database (Denmark)

    Plchot, O; Matsoukas, S; Matejka, P;

    2013-01-01

    This paper describes the speaker identification (SID) system developed by the Patrol team for the first phase of the DARPA RATS (Robust Automatic Transcription of Speech) program, which seeks to advance state of the art detection capabilities on audio from highly degraded communication channels. ...... CFCCs out-perform MFCC front-ends on noisy audio, and (c) fusion of multiple systems provides 24% relative improvement in EER compared to the single best system when using a novel SVM-based fusion algorithm that uses side information such as gender, language, and channel id....

  15. Gain Scheduling Control based on Closed-Loop System Identification

    DEFF Research Database (Denmark)

    Bendtsen, Jan Dimon; Trangbæk, Klaus

    This paper deals with system identification and gain scheduling control of multi-variable nonlinear systems. We propose a novel scheme where a linear approximation of the system model is obtained in an operating point; then, a Youla-Kucera (YJBK) parameter specifying the difference between the fi....... In a constructive manner, we show how to use the YJBK parameterisation to achieve a smooth scheduling between the controllers. The approach is tested on a simple, but highly nonlinear model of a coal-fired power plant....

  16. Rapid identification of Listeria spp.: an AOAC performance test of the MIT 1000 rapid microbial identification system

    Science.gov (United States)

    Methods that rapidly confirm the identification of foodborne pathogens are highly desired. The Micro Imaging Technology (MIT) 1000 Rapid Microbial Identification (RMID) System is a benchtop instrument that detects laser light scattered from individual bacterial cells in solution with an array of 35 ...

  17. Development of a SiPM-based PET imaging system for small animals

    Energy Technology Data Exchange (ETDEWEB)

    Lu, Yanye [Department of Biomedicine and Engineering, College of Engineering, Peking University, Beijing 100871 (China); Yang, Kun, E-mail: yangkun9999@hotmail.com [Department of Control Technology and Instrumentation, College of Quality and Technical Supervision, Hebei University, Baoding, 071000 (China); Zhou, Kedi; Zhang, Qiushi; Pang, Bo [Department of Biomedicine and Engineering, College of Engineering, Peking University, Beijing 100871 (China); Ren, Qiushi, E-mail: renqsh@coe.pku.edu.cn [Department of Biomedicine and Engineering, College of Engineering, Peking University, Beijing 100871 (China)

    2014-04-11

    Advances in small animal positron emission tomography (PET) imaging have been accelerated by many new technologies such as the successful incorporation of silicon photomultiplier (SiPM). In this paper, we have developed a compact, lightweight PET imaging system that is based on SiPM detectors for small animals imaging, which could be integrated into a multi-modality imaging system. This PET imaging system consists of a stationary detector gantry, a motor-controlled animal bed module, electronics modules, and power supply modules. The PET detector, which was designed as a multi-slice circular ring geometry of 27 discrete block detectors, is composed of a cerium doped lutetium–yttrium oxyorthosilicate (LYSO) scintillation crystal and SiPM arrays. The system has a 60 mm transaxial field of view (FOV) and a 26 mm axial FOV. Performance tests (e.g. spatial resolution, energy resolution, and sensitivity) and phantom and animal imaging studies were performed to evaluate the imaging performance of the PET imaging system. The performance tests and animal imaging results demonstrate the feasibility of an animal PET system based on SiPM detectors and indicate that SiPM detectors can be promising photodetectors in animal PET instrumentation development.

  18. Development of a SiPM-based PET imaging system for small animals

    International Nuclear Information System (INIS)

    Advances in small animal positron emission tomography (PET) imaging have been accelerated by many new technologies such as the successful incorporation of silicon photomultiplier (SiPM). In this paper, we have developed a compact, lightweight PET imaging system that is based on SiPM detectors for small animals imaging, which could be integrated into a multi-modality imaging system. This PET imaging system consists of a stationary detector gantry, a motor-controlled animal bed module, electronics modules, and power supply modules. The PET detector, which was designed as a multi-slice circular ring geometry of 27 discrete block detectors, is composed of a cerium doped lutetium–yttrium oxyorthosilicate (LYSO) scintillation crystal and SiPM arrays. The system has a 60 mm transaxial field of view (FOV) and a 26 mm axial FOV. Performance tests (e.g. spatial resolution, energy resolution, and sensitivity) and phantom and animal imaging studies were performed to evaluate the imaging performance of the PET imaging system. The performance tests and animal imaging results demonstrate the feasibility of an animal PET system based on SiPM detectors and indicate that SiPM detectors can be promising photodetectors in animal PET instrumentation development

  19. Identification of Yersinia spp. with the API 20E system.

    OpenAIRE

    Archer, J R; Schell, R F; Pennell, D R; Wick, P D

    1987-01-01

    The ability of the API 20E system to identify 105 clinical isolates of Yersinia spp. was compared with those of conventional biochemical tests at 28 and 37 degrees C. Elimination of the Voges-Proskauer test (recorded as a negative result) increased the percentage of correct identifications for Yersinia spp. from 66 to 93% when the API 20E strips were incubated at 28 degrees C.

  20. Observer-based Hamiltonian identification for quantum systems

    OpenAIRE

    Mirrahimi, Mazyar; Rouchon, Pierre

    2007-01-01

    An observer-based Hamiltonian identification algorithm for quantum systems is proposed. For the 2-level case an exponential convergence result based on averaging arguments and some relevant transformations is provided. The convergence for multi-level cases is discussed using some heuristic arguments and the relevance of the method is tested via simulations. Finally, the robustness issue with respect to non-negligible uncertainties and experimental noises is also addressed on simulations.

  1. Model selection approaches for nonlinear system identification: a review

    OpenAIRE

    Hong, Xia; Mitchell, R.J.; Chen, Sheng; Harris, Chris J.; Li, K; Irwin, G.W.

    2008-01-01

    The identification of non-linear systems using only observed finite datasets has become a mature research area over the last two decades. A class of linear-in-the-parameter models with universal approximation capabilities have been intensively studied and widely used due to the availability of many linear-learning algorithms and their inherent convergence conditions. This article presents a systematic overview of basic research on model selection approaches for linear-in-the-parameter models....

  2. TLM modeling and system identification of optimized antenna structures

    Directory of Open Access Journals (Sweden)

    N. Fichtner

    2008-05-01

    Full Text Available The transmission line matrix (TLM method in conjunction with the genetic algorithm (GA is presented for the bandwidth optimization of a low profile patch antenna. The optimization routine is supplemented by a system identification (SI procedure. By the SI the model parameters of the structure are estimated which is used for a reduction of the total TLM simulation time. The SI utilizes a new stability criterion of the physical poles for the parameter extraction.

  3. Data mining methodologies for supporting engineers during system identification

    OpenAIRE

    Saitta, Sandro; Smith, Ian; Raphael, Benny

    2008-01-01

    Data alone are worth almost nothing. While data collection is increasing exponentially worldwide, a clear distinction between retrieving data and obtaining knowledge has to be made. Data are retrieved while measuring phenomena or gathering facts. Knowledge refers to data patterns and trends that are useful for decision making. Data interpretation creates a challenge that is particularly present in system identification, where thousands of models may explain a given set of measurements. Manual...

  4. An Automated System for Garment Texture Design Class Identification

    OpenAIRE

    Emon Kumar Dey; Md. Nurul Ahad Tawhid; Mohammad Shoyaib

    2015-01-01

    Automatic identification of garment design class might play an important role in the garments and fashion industry. To achieve this, essential initial works are found in the literature. For example, construction of a garment database, automatic segmentation of garments from real life images, categorizing them into the type of garments such as shirts, jackets, tops, skirts, etc. It is now essential to find a system such that it will be possible to identify the particular design (printed, stri...

  5. Use of Padlock Probes and Rolling Circle Amplification (RCA) for Rapid Identification of Trichophyton Species, Related to Human and Animal Disorder

    OpenAIRE

    2015-01-01

    Background: The high degree of phenotypic similarity among Trichophyton species makes their identification difficult. Objectives: The current study aims to establish the use of rolling circle amplification (RCA) based on internal transcribed spacer ribosomal DNA (ITS rDNA) as a powerful, simple, and rapid procedure for distinguishing closely related organisms, and specifically to identify Trichophyton species, which cause human and animal disorders. Materials and Methods: A total of sixty-one...

  6. Identification to the species level of Lactobacillus isolated in probiotic prospecting studies of human, animal or food origin by 16S-23S rRNA restriction profiling

    OpenAIRE

    Neumann Elisabeth; Teixeira Santuza MR; Horta Maria F; Mota Rodrigo M; Moreira João; Nicoli Jacques R.; Nunes Álvaro C

    2005-01-01

    Abstract Background The accurate identification of Lactobacillus and other co-isolated bacteria during microbial ecological studies of ecosystems such as the human or animal intestinal tracts and food products is a hard task by phenotypic methods requiring additional tests such as protein and/or lipids profiling. Results Bacteria isolated in different probiotic prospecting studies, using de Man, Rogosa and Sharpe medium (MRS), were typed at species level by PCR amplification of 16S-23S rRNA i...

  7. WAHIS-Wild and its interface: the OIE worldwide monitoring system for wild animal diseases.

    Science.gov (United States)

    Jebara, Karim Ben

    2016-06-30

    Wild animal diseases are a global growing concern, given the threat that they pose to animal health and their zoonotic potential. The World Organisation for Animal Health (OIE) was among the first organisations to recognise the importance of having a comprehensive knowledge of the disease situation in wild animals, collecting information on wildlife diseases worldwide since 1993, when for the first time an annual questionnaire was distribute by OIE to members Countries in order to collect qualitative and quantitative data on selected diseases in wild animals. Starting with 2008 until 2012 an updated version of questionnaire was circulated to allow for identifying wildlife species by their Latin name and by their common names in the 3 OIE official languages (English, French, and Spanish). This specific functionality was then implemented in the World Animal Health Information System (WAHIS) in 2012, when this information was made available to the public through WAHIS-Wild Interface. PMID:27393871

  8. Animal models for the study of the effects of spaceflight on the immune system

    Science.gov (United States)

    Sonnenfeld, G.

    2003-10-01

    Animal models have been used to determine the effects of spaceflight on the immune system. Rats and rhesus monkeys have been the primary animals used for actual space flight studies, but mice have also been utilized for studies in ground-based models. The primary ground based model used has been hindlimb unloading of rodents, which is similar to the chronic bed-rest model for humans. A variety of immune responses have been shown to be modified when animals are hindlimb unloaded. These results parallel those observed when animals are flown in space. In general, immune responses are depressed in animals maintained in the hindlimb unloading model or flown in space. These results raise the possibility that spaceflight could result in decreased resistance to infection in animals.

  9. ON-FARM MANAGEMENT SYSTEMS IN ANIMAL PRODUCTION

    Directory of Open Access Journals (Sweden)

    Aleksandra Jug

    2000-06-01

    Full Text Available The on-farm management systems under development in order to insure data collection, regular data processing needed on a farm as well as automatic data exchange between farm and computing centre. The core of information system presents relational database (RDBMS accompanied with tools developed in APIIS. A system analysis method has been done on two pig industrial units, on national selection program for swine in Slovenia, and compared with examples from other countries and species. Public domain software like PostgreSQL, Perl and Linux have been chosen for use on farms and can be replaced with commercial software like Oracle for more demanding central systems. The system contains at this stage applications for entering, managing, and viewing the data as well as transferring the information between local and central databases.

  10. Cavity parameters identification for TESLA control system development

    International Nuclear Information System (INIS)

    The control system modeling for the TESLA - TeV-Energy Superconducting Linear Accelerator project has been developed for the efficient stabilization of the pulsed, accelerating EM field of the resonator. The cavity parameters identification is an essential task for the comprehensive control algorithm. The TESLA cavity simulator has been successfully implemented by applying very high speed FPGA - Field Programmable Gate Array technology. The electromechanical model of the cavity resonator includes the basic features - Lorentz force detuning and beam loading. The parameters identification bases on the electrical model of the cavity. The model is represented by the state space equation for the envelope of the cavity voltage driven by the current generator and the beam loading. For a given model structure, the over-determined matrix equation is created covering the long enough measurement range with the solution according to the least squares method. A low degree polynomial approximation is applied to estimate the time-varying cavity detuning during the pulse. The measurement channel distortion is considered, leading to the external cavity model seen by the controller. The comprehensive algorithm of the cavity parameters identification has been implemented in the Matlab system with different modes of the operation. Some experimental results have been presented for different cavity operational conditions. The following considerations have lead to the synthesis of the efficient algorithm for the cavity control system predicted for the potential FPGA technology implementation. (orig.)

  11. 78 FR 6732 - Changes to Standard Numbering System, Vessel Identification System, and Boating Accident Report...

    Science.gov (United States)

    2013-01-31

    ..., Vessel Identification System, and Boating Accident Report Database AGENCY: Coast Guard, DHS. ACTION: Rule... to numbering undocumented vessels and reporting boating accidents. The amendment affects three... agencies involved in issuing vessel registration and reporting boating accidents. This notice...

  12. Telocytes in female reproductive system (human and animal).

    Science.gov (United States)

    Aleksandrovych, Veronika; Walocha, Jerzy A; Gil, Krzysztof

    2016-06-01

    Telocytes (TCs) are a newly discovered type of cell with numerous functions. They have been found in a large variety of organs: heart (endo-, myo-, epi- and pericardium, myocardial sleeves, heart valves); digestive tract and annex glands (oesophagus, stomach, duodenum, jejunum, liver, gallbladder, salivary gland, exocrine pancreas); respiratory system (trachea and lungs); urinary system (kidney, renal pelvis, ureters, bladder, urethra); female reproductive system (uterus, Fallopian tube, placenta, mammary gland); vasculature (blood vessels, thoracic duct); serous membranes (mesentery and pleura); and other organs (skeletal muscle, meninges and choroid plexus, neuromuscular spindles, fascia lata, skin, eye, prostate, bone marrow). Likewise, TCs are widely distributed in vertebrates (fish, reptiles, birds, mammals, including human). This review summarizes particular features of TCs in the female reproductive system, emphasizing their involvement in physiological and pathophysiological processes. PMID:27060783

  13. Communications device identification methods, communications methods, wireless communications readers, wireless communications systems, and articles of manufacture

    Science.gov (United States)

    Steele, Kerry D [Kennewick, WA; Anderson, Gordon A [Benton City, WA; Gilbert, Ronald W [Morgan Hill, CA

    2011-02-01

    Communications device identification methods, communications methods, wireless communications readers, wireless communications systems, and articles of manufacture are described. In one aspect, a communications device identification method includes providing identification information regarding a group of wireless identification devices within a wireless communications range of a reader, using the provided identification information, selecting one of a plurality of different search procedures for identifying unidentified ones of the wireless identification devices within the wireless communications range, and identifying at least some of the unidentified ones of the wireless identification devices using the selected one of the search procedures.

  14. Development of Optical Molecular Imaging System for the Acquisition of Bioluminescence Signals from Small Animals

    International Nuclear Information System (INIS)

    Optical imaging is providing great advance and improvement in genetic and molecular imaging of animals and humans. Optical imaging system consists of optical imaging devices, which carry out major function for monitoring, tracing, and imaging in most of molecular in-vivo researches. In bio-luminescent imaging, small animals containing luciferase gene locally irradiate light, and emitted photons transmitted through skin of the small animals are imaged by using a high sensitive charged coupled device (CCD) camera. In this paper, we introduced optical imaging system for the image acquisition of bio-luminescent signals emitted from small animals. In the system, Nikon lens and four LED light sources were mounted at the inside of a dark box. A cooled CCD camera equipped with a control module was used. We tested the performance of the optical imaging system using effendorf tube and light emitting bacteria which injected intravenously into CT26 tumor bearing nude mouse. The performance of implemented optical imaging system for bio-luminescence imaging was demonstrated and the feasibility of the system in small animal imaging application was proved. We anticipate this system could be a useful tool for the molecular imaging of small animals adaptable for various experimental conditions in future

  15. Development of Optical Molecular Imaging System for the Acquisition of Bioluminescence Signals from Small Animals

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Byeong Il; Kim, Hyeon Sik; Jeong, Hye Jin; Lee, Hyung Jae; Moon, Seung Min; Kwon, Seung Young; Jeong, Shin Young; Bom, Hee Seung; Min, Jung Joon [Chonnam National University Hospital, Gwangju (Korea, Republic of); Choi, Eun Seo [Chosun University, Gwangju (Korea, Republic of)

    2009-08-15

    Optical imaging is providing great advance and improvement in genetic and molecular imaging of animals and humans. Optical imaging system consists of optical imaging devices, which carry out major function for monitoring, tracing, and imaging in most of molecular in-vivo researches. In bio-luminescent imaging, small animals containing luciferase gene locally irradiate light, and emitted photons transmitted through skin of the small animals are imaged by using a high sensitive charged coupled device (CCD) camera. In this paper, we introduced optical imaging system for the image acquisition of bio-luminescent signals emitted from small animals. In the system, Nikon lens and four LED light sources were mounted at the inside of a dark box. A cooled CCD camera equipped with a control module was used. We tested the performance of the optical imaging system using effendorf tube and light emitting bacteria which injected intravenously into CT26 tumor bearing nude mouse. The performance of implemented optical imaging system for bio-luminescence imaging was demonstrated and the feasibility of the system in small animal imaging application was proved. We anticipate this system could be a useful tool for the molecular imaging of small animals adaptable for various experimental conditions in future

  16. A Roadmap for the Development of Alternative (Non-Animal) Methods for Systemic Toxicity Testing

    Science.gov (United States)

    Systemic toxicity testing forms the cornerstone for the safety evaluation of substances. Pressures to move from traditional animal models to novel technologies arise from various concerns, including: the need to evaluate large numbers of previously untested chemicals and new prod...

  17. Identification of fractional order systems using modulating functions method

    KAUST Repository

    Liu, Dayan

    2013-06-01

    The modulating functions method has been used for the identification of linear and nonlinear systems. In this paper, we generalize this method to the on-line identification of fractional order systems based on the Riemann-Liouville fractional derivatives. First, a new fractional integration by parts formula involving the fractional derivative of a modulating function is given. Then, we apply this formula to a fractional order system, for which the fractional derivatives of the input and the output can be transferred into the ones of the modulating functions. By choosing a set of modulating functions, a linear system of algebraic equations is obtained. Hence, the unknown parameters of a fractional order system can be estimated by solving a linear system. Using this method, we do not need any initial values which are usually unknown and not equal to zero. Also we do not need to estimate the fractional derivatives of noisy output. Moreover, it is shown that the proposed estimators are robust against high frequency sinusoidal noises and the ones due to a class of stochastic processes. Finally, the efficiency and the stability of the proposed method is confirmed by some numerical simulations.

  18. System identification for modeling for control of flexible structures

    Science.gov (United States)

    Mettler, Edward; Milman, Mark

    1986-01-01

    The major components of a design and operational flight strategy for flexible structure control systems are presented. In this strategy an initial distributed parameter control design is developed and implemented from available ground test data and on-orbit identification using sophisticated modeling and synthesis techniques. The reliability of this high performance controller is directly linked to the accuracy of the parameters on which the design is based. Because uncertainties inevitably grow without system monitoring, maintaining the control system requires an active on-line system identification function to supply parameter updates and covariance information. Control laws can then be modified to improve performance when the error envelopes are decreased. In terms of system safety and stability the covariance information is of equal importance as the parameter values themselves. If the on-line system ID function detects an increase in parameter error covariances, then corresponding adjustments must be made in the control laws to increase robustness. If the error covariances exceed some threshold, an autonomous calibration sequence could be initiated to restore the error enveloped to an acceptable level.

  19. Environmental and Social Management System Implementation Handbook : Animal Production

    OpenAIRE

    International Finance Corporation

    2014-01-01

    Environmental and social responsibility is becoming more and more important in todayapos;s global economy. There are thousands of environmental and social codes and standards in the world today. The codes and standards define the rules and the objectives. But the challenge is in the implementation. An environmental and social management system (ESMS) helps companies to integrate the ru...

  20. ANIMATION AND VISUALIZATION OF WATER QUALITY IN DISTRIBUTION SYSTEMS

    Science.gov (United States)

    Water may undergo a number of changes in the distribution system, making the quality of the water at the customer's tap different from the quality of the water that leaves the treatment plant. Such changes in quality may be caused by chemical or biological variations or by a loss...

  1. An approximation theory for the identification of linear thermoelastic systems

    Science.gov (United States)

    Rosen, I. G.; Su, Chien-Hua Frank

    1990-01-01

    An abstract approximation framework and convergence theory for the identification of thermoelastic systems is developed. Starting from an abstract operator formulation consisting of a coupled second order hyperbolic equation of elasticity and first order parabolic equation for heat conduction, well-posedness is established using linear semigroup theory in Hilbert space, and a class of parameter estimation problems is then defined involving mild solutions. The approximation framework is based upon generic Galerkin approximation of the mild solutions, and convergence of solutions of the resulting sequence of approximating finite dimensional parameter identification problems to a solution of the original infinite dimensional inverse problem is established using approximation results for operator semigroups. An example involving the basic equations of one dimensional linear thermoelasticity and a linear spline based scheme are discussed. Numerical results indicate how the approach might be used in a study of damping mechanisms in flexible structures.

  2. The electronic identification, signature and security of information systems

    Directory of Open Access Journals (Sweden)

    Horovèák Pavel

    2002-12-01

    Full Text Available The contribution deals with the actual methods and technologies of information and communication systems security. It introduces the overview of electronic identification elements such as static password, dynamic password and single sign-on. Into this category belong also biometric and dynamic characteristics of verified person. Widespread is authentication based on identification elements ownership, such as various cards and authentication calculators. In the next part is specified a definition and characterization of electronic signature, its basic functions and certificate categories. Practical utilization of electronic signature consists of electronic signature acquirement, signature of outgoing email message, receiving of electronic signature and verification of electronic signature. The use of electronic signature is continuously growing and in connection with legislation development it exercises in all resorts.

  3. An experimental study of nonlinear dynamic system identification

    Science.gov (United States)

    Stry, Greselda I.; Mook, D, Joseph

    1991-01-01

    A technique based on the Minimum Model Error optimal estimation approach is employed for robust identification of a nonlinear dynamic system. A simple harmonic oscillator with quadratic position feedback was simulated on an analog computer. With the aid of analog measurements and an assumed linear model, the Minimum Model Error Algorithm accurately identifies the quadratic nonlinearity. The tests demonstrate that the method is robust with respect to prior ignorance of the nonlinear system model and with respect to measurement record length, regardless of initial conditions.

  4. INTEGRATING RADIO FREQUENCY IDENTIFICATION TECHNOLOGY IN ACADEMIC MANAGEMENT SYSTEM

    Directory of Open Access Journals (Sweden)

    Zainab Rasheed Mirza

    2014-01-01

    Full Text Available The purpose of this study is building a web and windows based intelligent system using web technologies, biometric and Radio Frequency Identification technologies (RFID to strengthen an Academic Management System (AMS in a campus for monitoring and improving academic performance of teachers and students. A campus mobile phone application will allow guardians to monitor student’s movement history at campus, e-payments and food choices at canteen, class attendance, exam attendance and academic performance on daily basis. Mobile application for students will allow students to view their class schedules, teacher appointments, e-payment statement, warnings or announcements, locate their exam halls and search for classrooms.

  5. Experimental Identification of Concentrated Nonlinearity in Aeroelastic System

    Directory of Open Access Journals (Sweden)

    Nayfeh Ali H

    2012-07-01

    Full Text Available Identification of concentrated nonlinearity in the torsional spring of an aeroelastic system is performed. This system consists of a rigid airfoil that is supported by a linear spring in the plunge motion and a nonlinear spring in the pitch motion. Quadratic and cubic nonlinearities in the pitch moment are introduced to model the concentrated nonlinearity. The representation of the aerodynamic loads by the Duhamel formulation yielded accurate values for the flutter speed and frequency. The results show that the use of the Duhamel formulation to represent the aerodynamic loads yields excellent agreement between the experimental data and the numerical predictions.

  6. Evaluation of the repliscan system for Enterobacteriaceae identification.

    OpenAIRE

    Woolfrey, B F; Quall, C O; Fox, J M

    1981-01-01

    A total of 1,013 isolates of Enterobacteriaceae were identified in parallel by the Repliscan (Cathra International, Ontario, Canada) and API 20E (Analytab Products, Plainview, N.Y.) systems. There was a 62% agreement at the genus level between the two systems. Of the 38% discrepant results, Repliscan classified 22% as "biochemical pattern not on file," 8% as a multiple-genus group which included the API 20E identification, and 8% as a genus other than that designated by API 20E. Relative to t...

  7. Citizens’ View on Veal Calves’ Fattening System in Italy and Animal Welfare

    OpenAIRE

    Marta Brscic; Flaviana Gottardo; Giulio Cozzi

    2013-01-01

    Aims of this study were to assess citizens’ view on the current veal calves’ fattening system in Italy and on animal welfare, and to find relationships with veal meat consumption. Socio-demographic characteristics, veal meat consumption habits, knowledge of veal calves rearing system and animal welfare attitudes of 100 citizens were investigated through a questionnaire submitted on a voluntary base in supermarkets/butcher shops. Results showed that 61 respondents were veal meat consumers and ...

  8. Assessing nutrient cycling in the soil/plant/animal system of semi-arid pasture lands

    International Nuclear Information System (INIS)

    Isotopic labelling is helpful in understanding the fate of nutrient fertilizers and determining the chemical and biochemical mechanisms that affect nutrient cycling through the soil/plant/animal system. Use of isotopic P and S in grassland systems is briefly discussed. Plant growth is discussed in response to nutrient levels in soil extracts and plant tissue. Optimizing plant growth will generally ensure high yields of quality forage that will result in good animal performance. (author)

  9. A reference system for animal biometrics: application to the northern leopard frog

    Science.gov (United States)

    Petrovska-Delacretaz, D.; Edwards, A.; Chiasson, J.; Chollet, G.; Pilliod, D.S.

    2014-01-01

    Reference systems and public databases are available for human biometrics, but to our knowledge nothing is available for animal biometrics. This is surprising because animals are not required to give their agreement to be in a database. This paper proposes a reference system and database for the northern leopard frog (Lithobates pipiens). Both are available for reproducible experiments. Results of both open set and closed set experiments are given.

  10. Testing alternative designs for a roadside animal detection system using a driving simulator

    OpenAIRE

    Molly K. Grace; Smith, Daniel J; Reed F Noss

    2015-01-01

    Objectives: A Roadside Animal Detection System (RADS) was installed in January 2012 along Highway 41 through Big Cypress National Preserve in Florida, USA in an attempt to reduce wildlife-vehicle collisions. The system uses flashing warning signs to alert drivers when a large animal is near the road. However, we suspected that the RADS warning signs could be ignored by drivers because they resemble other conventional signs. We hypothesized that word-based warning signs (current design) are le...

  11. Potential application of electronic olfaction systems in feedstuffs analysis and animal nutrition

    OpenAIRE

    Vittorio Dell'Orto; Anna Campagnoli

    2013-01-01

    Electronic Olfaction Systems (EOSs) based on a variety of gas-sensing technologies have been developed to simulate in a simplified manner animal olfactory sensing systems. EOSs have been successfully applied to many applications and fields, including food technology and agriculture. Less information is available for EOS applications in the feed technology and animal nutrition sectors. Volatile Organic Compounds (VOCs), which are derived from both forages and concentrate ingredients of farm an...

  12. Assessment of PCR-DGGE for the identification of diverse Helicobacter species, and application to faecal samples from zoo animals to determine Helicobacter prevalence

    DEFF Research Database (Denmark)

    Abu Al-Soud, W.; Bennedsen, M.; On, Stephen L.W.;

    2003-01-01

    in highly heterogeneous species, sequence divergence was observed and more than one PCR-DGGE profile was obtained. Application of the PCR-DGGE method to DNA extracted from faeces of zoo animals revealed the presence of Helicobacter DNA in 13 of 16 samples; a correlation was seen between the mobility of PCR...... on purified amplicons. Sixteen DGGE profiles were derived from 44 type and reference strains of 20 Helicobacter species, indicating the potential of this approach for resolving infection of a single host by multiple Helicobacter species. Some more highly related species were not differentiated whereas...... products in DGGE analysis and DNA sequencing. In combination, this indicated that zoo animals are colonized by a wide range of different Helicobacter species; seven animals appeared to be colonized by multiple Helicobacter species. By this approach, presumptive identifications were made of Helicobacter...

  13. An integrated multimodality image-guided robot system for small-animal imaging research

    International Nuclear Information System (INIS)

    We design and construct an image-guided robot system for use in small-animal imaging research. This device allows the use of co-registered small-animal PET-MRI images to guide the movements of robotic controllers, which will accurately place a needle probe at any predetermined location inside, for example, a mouse tumor, for biological readouts without sacrificing the animal. This system is composed of three major components: an automated robot device, a CCD monitoring mechanism, and a multimodality registration implementation. Specifically, the CCD monitoring mechanism was used for correction and validation of the robot device. To demonstrate the value of the proposed system, we performed a tumor hypoxia study that involved FMISO small-animal PET imaging and the delivering of a pO2 probe into the mouse tumor using the image-guided robot system. During our evaluation, the needle positioning error was found to be within 0.153±0.042 mm of desired placement; the phantom simulation errors were within 0.693±0.128 mm. In small-animal studies, the pO2 probe measurements in the corresponding hypoxia areas showed good correlation with significant, low tissue oxygen tensions (less than 6 mmHg). We have confirmed the feasibility of the system and successfully applied it to small-animal investigations. The system could be easily adapted to extend to other biomedical investigations in the future.

  14. An integrated multimodality image-guided robot system for small-animal imaging research

    Energy Technology Data Exchange (ETDEWEB)

    Hsu, Wen-Lin [Department of Radiology, Tzu-Chi University and Radiation Oncology, Buddhist Tzu-Chi General Hospital Hualien, Taiwan (China); Hsin Wu, Tung [Department of Biomedical Imaging and Radiological Sciences, National Yang Ming University, Taipei, Taiwan (China); Hsu, Shih-Ming [Department of Biomedical Imaging and Radiological Sciences, China Medical University, Taichung, Taiwan (China); Chen, Chia-Lin [Department of Medical Imaging and Radiological Sciences, Chung Shan Medical University, Taichung, Taiwan (China); Lee, Jason J.S., E-mail: jslee@ym.edu.tw [Department of Biomedical Imaging and Radiological Sciences, National Yang Ming University, Taipei, Taiwan (China); Huang, Yung-Hui, E-mail: yhhuang@isu.edu.tw [Department of Medical Imaging and Radiological Sciences, I-Shou University, Kaohsiung, Taiwan (China)

    2011-10-01

    We design and construct an image-guided robot system for use in small-animal imaging research. This device allows the use of co-registered small-animal PET-MRI images to guide the movements of robotic controllers, which will accurately place a needle probe at any predetermined location inside, for example, a mouse tumor, for biological readouts without sacrificing the animal. This system is composed of three major components: an automated robot device, a CCD monitoring mechanism, and a multimodality registration implementation. Specifically, the CCD monitoring mechanism was used for correction and validation of the robot device. To demonstrate the value of the proposed system, we performed a tumor hypoxia study that involved FMISO small-animal PET imaging and the delivering of a pO{sub 2} probe into the mouse tumor using the image-guided robot system. During our evaluation, the needle positioning error was found to be within 0.153{+-}0.042 mm of desired placement; the phantom simulation errors were within 0.693{+-}0.128 mm. In small-animal studies, the pO{sub 2} probe measurements in the corresponding hypoxia areas showed good correlation with significant, low tissue oxygen tensions (less than 6 mmHg). We have confirmed the feasibility of the system and successfully applied it to small-animal investigations. The system could be easily adapted to extend to other biomedical investigations in the future.

  15. The MeSsI (Merging Systems Identification) Algorithm & Catalogue

    CERN Document Server

    Rios, Martín de los; Paz, Dante; Merchán, Manuel

    2015-01-01

    Merging galaxy systems provides observational evidence of the existence of dark matter and constraints on its properties. Therefore, statistical uniform samples of merging systems would be a powerful tool for several studies. In this work we presents a new methodology for merging systems identification and the results of its application to galaxy redshift surveys. We use as starting point a mock catalogue of galaxy systems, identified using traditional FoF algorithms, which experienced a major merger as indicated by its merger tree. Applying machine learning techniques in this training sample, and using several features computed from the observable properties of galaxy members, it is possible to select galaxy groups with a high probability of have been experienced a major merger. Next we apply clustering techniques on galaxy members in order to reconstruct the properties of the haloes involved in such merger. This methodology provides a highly reliable sample of merging systems with low contamination and prec...

  16. Sensor network based vehicle classification and license plate identification system

    Energy Technology Data Exchange (ETDEWEB)

    Frigo, Janette Rose [Los Alamos National Laboratory; Brennan, Sean M [Los Alamos National Laboratory; Rosten, Edward J [Los Alamos National Laboratory; Raby, Eric Y [Los Alamos National Laboratory; Kulathumani, Vinod K [WEST VIRGINIA UNIV.

    2009-01-01

    Typically, for energy efficiency and scalability purposes, sensor networks have been used in the context of environmental and traffic monitoring applications in which operations at the sensor level are not computationally intensive. But increasingly, sensor network applications require data and compute intensive sensors such video cameras and microphones. In this paper, we describe the design and implementation of two such systems: a vehicle classifier based on acoustic signals and a license plate identification system using a camera. The systems are implemented in an energy-efficient manner to the extent possible using commercially available hardware, the Mica motes and the Stargate platform. Our experience in designing these systems leads us to consider an alternate more flexible, modular, low-power mote architecture that uses a combination of FPGAs, specialized embedded processing units and sensor data acquisition systems.

  17. Use of the BioMerieux ID 32C yeast identification system for identification of aerobic actinomycetes of medical importance.

    OpenAIRE

    Muir, D B; Pritchard, R C

    1997-01-01

    The BioMerieux ID 32C Yeast Identification System was examined to determine its usefulness as a rapid method for the identification of medically important aerobic actinomycetes. More than 290 strains were tested by this method and the results were compared to those obtained by conventional methods. It was found that aerobic actinomycetes could be differentiated to species level in 7 days by the ID 32C system.

  18. Role of nervous system on immunological response of animal

    International Nuclear Information System (INIS)

    Autoantibodies occur more frequently in old age. Both organ and non organ specific antibodies have been reported to occur in increasing frequency in sera of diseased free men and mice relatively late in life. The prevalence of auto-anti-thyroglobulin antibodies in various thyroid abnormalities are common regardless of age. The investigation reported in the present study was aimed to provide some insights on virtually unexplored area of auto-anti-thyroglobulin as related to central nervous system using various radio immunological and serological techniques for the determination of antibody formation and toter, in artificial case of auto-immunity developed by induced T G immunity in rabbits

  19. [Distribution of the different patterns of aging over the system of animal world].

    Science.gov (United States)

    Popov, I Iu

    2011-01-01

    Since the system of animal world reflects evolutionary trends, an analysis of distribution of patterns of aging over this system provides information on the causes of the formation of differences among them. In this paper the system of the main animal groups in form of a table is presented, and the distribution of patterns demonstrating minimum and maximum of aging is discussed. Meanwhile the colonial animals are considered as a "minimum of aging", the animals demonstrating drastic self-liquidation after reproduction are considered as a "maximum of aging" (the most well-known example is the pink salmon). It is shown, that as far as the degree of difference from the simplest ancestor increases in process of evolution, the increase of the manifestations of aging takes place. Slow aging of relatively simple organisms cannot be a direct source of measures to prevent aging of complex ones. PMID:21957572

  20. Use of animal models for space flight physiology studies, with special focus on the immune system

    Science.gov (United States)

    Sonnenfeld, Gerald

    2005-01-01

    Animal models have been used to study the effects of space flight on physiological systems. The animal models have been used because of the limited availability of human subjects for studies to be carried out in space as well as because of the need to carry out experiments requiring samples and experimental conditions that cannot be performed using humans. Experiments have been carried out in space using a variety of species, and included developmental biology studies. These species included rats, mice, non-human primates, fish, invertebrates, amphibians and insects. The species were chosen because they best fit the experimental conditions required for the experiments. Experiments with animals have also been carried out utilizing ground-based models that simulate some of the effects of exposure to space flight conditions. Most of the animal studies have generated results that parallel the effects of space flight on human physiological systems. Systems studied have included the neurovestibular system, the musculoskeletal system, the immune system, the neurological system, the hematological system, and the cardiovascular system. Hindlimb unloading, a ground-based model of some of the effects of space flight on the immune system, has been used to study the effects of space flight conditions on physiological parameters. For the immune system, exposure to hindlimb unloading has been shown to results in alterations of the immune system similar to those observed after space flight. This has permitted the development of experiments that demonstrated compromised resistance to infection in rodents maintained in the hindlimb unloading model as well as the beginning of studies to develop countermeasures to ameliorate or prevent such occurrences. Although there are limitations to the use of animal models for the effects of space flight on physiological systems, the animal models should prove very valuable in designing countermeasures for exploration class missions of the future.

  1. The impact of broiler production system practices on consumer perceptions of animal welfare.

    Science.gov (United States)

    de Jonge, Janneke; van Trijp, Hans C M

    2013-12-01

    This research explores the extent to which different farm management practices influence the perceived animal friendliness of broiler production systems, and how this differs between individuals. Using a conjoint design with paired comparisons, respondents evaluated broiler production systems that were described on the basis of 7 animal welfare-related practices. It was found that practices in the area of outdoor access, stocking density, and day-night rhythm were overall perceived to have a larger impact on perceptions of animal friendliness than other practices, such as transport duration or the type of breed used. However, individuals differed regarding the extent to which they believed the different farm management practices influenced the animal friendliness of the production system. Differences between individuals regarding their knowledge about and familiarity with livestock farming, degree of anthropomorphism, and their moral beliefs regarding animal welfare partly explained the relative importance individuals attached to farm management practices. The obtained insight into which welfare-related farm management practices, in consumers' minds, most strongly contribute to animal welfare, and the existence of differences between consumers, can be helpful in the development of animal welfare-based certification schemes that are appealing to consumers, as well as the positioning of welfare concepts in the market. PMID:24235215

  2. Systems biology: a new tool for farm animal science.

    Science.gov (United States)

    Hollung, Kristin; Timperio, Anna M; Olivan, Mamen; Kemp, Caroline; Coto-Montes, Ana; Sierra, Veronica; Zolla, Lello

    2014-03-01

    It is rapidly emerging that the tender meat phenotype is affected by an enormous amount of variables, not only tied to genetics (livestock breeding selection), but also to extrinsic factors, such as feeding conditions, physical activity, rearing environment, administration of hormonal growth promotants, pre-slaughter handling and stress. Proteomics has been widely accepted by meat scientists over the last years and is now commonly used to shed light on the postmortem processes involved in meat tenderization. This review discusses the latest findings with the use of proteomics and systems biology to study the different biochemical pathways postmortem aiming at understanding the concerted action of different molecular mechanisms responsible for meat quality. The conversion of muscle to meat postmortem can be described as a sequence of events involving molecular pathways controlled by a complex interplay of many factors. Among the different pathways emerging are the influence of apoptosis and lately also the role of autophagy in muscle postmortem development. This review thus, focus on how systems-wide integrated investigations (metabolomics, transcriptomics, interactomics, phosphoproteomics, mathematical modeling), which have emerged as complementary tools to proteomics, have helped establishing a few milestones in our understanding of the events leading from muscle to meat conversion. PMID:24555891

  3. Farewell to Animal Testing: Innovations on Human Intestinal Microphysiological Systems

    Directory of Open Access Journals (Sweden)

    Tae Hyun Kang

    2016-06-01

    Full Text Available The human intestine is a dynamic organ where the complex host-microbe interactions that orchestrate intestinal homeostasis occur. Major contributing factors associated with intestinal health and diseases include metabolically-active gut microbiota, intestinal epithelium, immune components, and rhythmical bowel movement known as peristalsis. Human intestinal disease models have been developed; however, a considerable number of existing models often fail to reproducibly predict human intestinal pathophysiology in response to biological and chemical perturbations or clinical interventions. Intestinal organoid models have provided promising cytodifferentiation and regeneration, but the lack of luminal flow and physical bowel movements seriously hamper mimicking complex host-microbe crosstalk. Here, we discuss recent advances of human intestinal microphysiological systems, such as the biomimetic human “Gut-on-a-Chip” that can employ key intestinal components, such as villus epithelium, gut microbiota, and immune components under peristalsis-like motions and flow, to reconstitute the transmural 3D lumen-capillary tissue interface. By encompassing cutting-edge tools in microfluidics, tissue engineering, and clinical microbiology, gut-on-a-chip has been leveraged not only to recapitulate organ-level intestinal functions, but also emulate the pathophysiology of intestinal disorders, such as chronic inflammation. Finally, we provide potential perspectives of the next generation microphysiological systems as a personalized platform to validate the efficacy, safety, metabolism, and therapeutic responses of new drug compounds in the preclinical stage.

  4. A Pilot System for Environmental Monitoring Through Domestic Animals

    Science.gov (United States)

    Schwabe, Calvin W.; Sawyer, John; Martin, Wayne

    1971-01-01

    A pilot system for environmental monitoring is in its early phases of development in Northern California. It is based upon the existing nation wide Federal-State Market Cattle Testing (14CT) program for brucellosis in cattle. This latter program depends upon the collection of blood program at the time of identified cattle. As the cattle Population of California is broadly distributed throughout the state, we intend to utilize these blood samples to biologically monitor the distribution and intensity of selected environmental pollutants. In a 2-year preliminary trial, the feasibility of retrieving, utilizing for a purpose similar to this, and tracing back to their geographic areas of origin of MCT samples have been demonstrated.

  5. Iris Recognition System using canny edge detection for Biometric Identification

    Directory of Open Access Journals (Sweden)

    Bhawna Chouhan

    2011-01-01

    Full Text Available biometric system provides automatic identification of an individual based on a unique feature or characteristic possessed by the individual. Iris recognition is regarded as the most reliable and accurate biometric identification system available. Most commercial iris recognition systems use patented algorithms developed by Daugman, and these algorithms are able to produce perfect recognition rates. Especially it focuses on image segmentation and feature extraction for iris recognition process. The performance of iris recognition system highly depends on edge detection. The Canny Edge Detector is one of the most commonly used image processing tools, detecting edges in a very robust manner. For instance, even an effective feature extraction method would not be able to obtain useful information from an iris image that is not segmented properly. This paper presents a straightforward approach for segmenting the iris patterns. The used method determines an automated global threshold and the pupil center. Experiments are performed using iris images obtained from CASIA database (Institute of Automation, Chinese Academy of Sciences and Matlab application for its easy and efficient tools in image manipulation.

  6. Indirect Identification of Linear Stochastic Systems with Known Feedback Dynamics

    Science.gov (United States)

    Huang, Jen-Kuang; Hsiao, Min-Hung; Cox, David E.

    1996-01-01

    An algorithm is presented for identifying a state-space model of linear stochastic systems operating under known feedback controller. In this algorithm, only the reference input and output of closed-loop data are required. No feedback signal needs to be recorded. The overall closed-loop system dynamics is first identified. Then a recursive formulation is derived to compute the open-loop plant dynamics from the identified closed-loop system dynamics and known feedback controller dynamics. The controller can be a dynamic or constant-gain full-state feedback controller. Numerical simulations and test data of a highly unstable large-gap magnetic suspension system are presented to demonstrate the feasibility of this indirect identification method.

  7. Animal Hospital Management System Design Based on C/S/S Structure

    Institute of Scientific and Technical Information of China (English)

    HUANG Jing; ZHAO Jie; WEI Xiaoli

    2008-01-01

    By analysis of the functions of animal hospital's departments,combining with management information development truth,the paper developed animal hospital management system.The system included six modules, like system management module, basic information management module,sections management module,and so on.The paper used Visual C++6.0 and SQL Server 2000,and ODBC database accessing technology,which can encapsulate any database table and operation into class.The system could make any window to share table's operation to realize hospital management quickly and efficiency.

  8. The cGMP system in irradiated animals

    International Nuclear Information System (INIS)

    Changes in the functioning of the cGMP system of the thymocytes and liver of mice subjected to 8 Gy roentgen irradiation were found. Within one hour after irradiation an increase in the cGMP level in thymocytes was noted; two rises in the cGMP concentration in the liver were established, at 0.5 and 24 hours after irradiation. These changes in the cGMP level were correlated to an increase in the guanylate cyclase activities in the thymocytes and liver of the mice subjected to irradiation, and to a lesser extent to changes in the activities of cGMP phosphodiesterase in these tissues. A post-irradiation increase in the rat liver guanylate cyclase activity was also observed. A decrease in cGMP phosphodiesterase activity in the liver of the irradiated mice was followed by a change in the enzymatic kinetics and an increase in cGMP phosphodiesterase thermolability. The post-irradiational rise in guanylate cyclase activity was produced by activation of the enzyme. (orig.)

  9. Digital Instrumentation Analysis and Navigation System (DIANS) for system identification

    Science.gov (United States)

    Smyth, R. K.; Smyth, D. E.; Taylor, L. W., Jr.

    1983-01-01

    Hardware, software, and performance features of the Digital Instrumentation and Navigation System (DIANS) designed for NASA research to collect flight data as a strap-down system are detailed. The support software for the system has a cross compiler, a linkage editor, and cross assembler, extended communication capabilities, postflight processing applications, and compilers for PASCAL, FORTRAN, CBASIC and MT. The DIANS microcomputer has a 1 Mbyte RAM module, a fast floating point processor board, a 68000 monoboard computer with 64 RAM, a 128 Kbyte bubble memory card, and a navigation radio. The system also carries a battery for full system operation for over an hour. The support software is also stored on a host mainframe computer, which has a CP/M operating system. Pitch, roll, and heading data are gathered from the on-board system, and communication is possible between the airborne and ground-based computer.

  10. UPTF test instrumentation. Measurement system identification, engineering units and computed parameters

    International Nuclear Information System (INIS)

    This modified and revised version of the preceding report provides a comprehensive coverage of the information on the identification of the measurement system for the complete conventional and advanced instrumentation used in the Upper Plenum Test Facility - UPTF. In particular, the list of the measurement system identification, e.g. measuring instruments, sensor location, uncertainties, measurement identification code etc., has been updated and amended to include the identification codes for the computed parameters. The measurement identification codes, which also stand for the identification of the corresponding measured quantities in engineering units, and the identification codes derived therefrom for the computed parameters have been adequately defined in the description of the measurement system identification. (orig.)

  11. Blind adaptive identification of FIR channel in chaotic communication systems

    Institute of Scientific and Technical Information of China (English)

    Wang Bao-Yun; Tommy W.S.Chow; K.T.Ng

    2004-01-01

    In this paper we study the problem of blind channel identification in chaotic communications. An adaptive algorithm is proposed, which exploits the boundness property of chaotic signals. Compared with the EKF-based approach, the proposed algorithm achieves a great complexity gain but at the expense of a slight accuracy degradation.However, our approach enjoys the important advantage that it does not require the a priori information such as nonlinearity of chaotic dynamics and the variances of measurement noise and the coefficient model noise. In addition,our approach is applicable to the ARMA system.

  12. MRI compatible small animal monitoring and trigger system for whole body scanners

    Energy Technology Data Exchange (ETDEWEB)

    Herrmann, Karl-Heinz; Krumbein, Ines; Reichenbach, Juergen R. [Jena University Hospital (Germany). Medical Physics Group; Pfeiffer, Norman [Jena University Hospital (Germany). Medical Physics Group; Ernst-Abbe-Fachhochschule Jena (Germany); Herrmann, Lutz [Ernst-Abbe-Fachhochschule Jena (Germany)

    2014-03-01

    Performing magnetic resonance imaging (MRI) experiments with small animals requires continuous monitoring of vital parameters, especially the respiration rate. Clinical whole-body MR scanners represent an attractive option for preclinical imaging as dedicated animal scanners are cost-intensive in both investment and maintenance, thus limiting their availability. Even though impressive image quality is achievable with clinical MR systems in combination with special coils, their built-in physiologic monitoring and triggering units are often not suited for small animal imaging. In this work, we present a simple, MRI compatible low cost solution to monitor the respiration and heart rate of small animals in a clinical whole-body MR scanner. The recording and processing of the biosignals as well as the optimisation of the respiratory trigger generation is described. Additionally rat and mouse in-vivo MRI experiments are presented to illustrate the effectiveness of the monitoring and respiratory trigger system in suppressing motion artifacts. (orig.)

  13. Management Systems for Organic EggProduction - Aiming to Improve AnimalHealth and Welfare

    DEFF Research Database (Denmark)

    Hegelund, Lene

    one production period. In the second part of the project a generic HACCP system was developed, using an expert panel analysis. The two management tools have very different approaches to improving animal health and welfare, and subsequently different methods, cost and advantages. This makes them......Animal health and welfare is an important part of organic husbandry, both in terms of the organic principles and owing to the consumer interest. But problems in the organic egg production resulting in high mortality and feather pecking, have led to the need for management tools in order to secure...... animal health and welfare. The aim of the project is to develop management tools for the organic egg production, aimed to secure animal health and welfare in the flocks. In the first part of the project a welfare assessment system for organic egg production was developed and tested on 10 fl ocks during...

  14. MRI compatible small animal monitoring and trigger system for whole body scanners

    International Nuclear Information System (INIS)

    Performing magnetic resonance imaging (MRI) experiments with small animals requires continuous monitoring of vital parameters, especially the respiration rate. Clinical whole-body MR scanners represent an attractive option for preclinical imaging as dedicated animal scanners are cost-intensive in both investment and maintenance, thus limiting their availability. Even though impressive image quality is achievable with clinical MR systems in combination with special coils, their built-in physiologic monitoring and triggering units are often not suited for small animal imaging. In this work, we present a simple, MRI compatible low cost solution to monitor the respiration and heart rate of small animals in a clinical whole-body MR scanner. The recording and processing of the biosignals as well as the optimisation of the respiratory trigger generation is described. Additionally rat and mouse in-vivo MRI experiments are presented to illustrate the effectiveness of the monitoring and respiratory trigger system in suppressing motion artifacts. (orig.)

  15. Potential Application of Electronic Olfaction Systems in Feedstuffs Analysis and Animal Nutrition

    Directory of Open Access Journals (Sweden)

    Vittorio Dell'Orto

    2013-10-01

    Full Text Available Electronic Olfaction Systems (EOSs based on a variety of gas-sensing technologies have been developed to simulate in a simplified manner animal olfactory sensing systems. EOSs have been successfully applied to many applications and fields, including food technology and agriculture. Less information is available for EOS applications in the feed technology and animal nutrition sectors. Volatile Organic Compounds (VOCs, which are derived from both forages and concentrate ingredients of farm animal rations, are considered and described in this review as olfactory markers for feedstock quality and safety evaluation. EOS applications to detect VOCs from feedstuffs (as analytical matrices are described, and some future scenarios are hypothesised. Furthermore, some EOS applications in animal feeding behaviour and organoleptic feed assessment are also described.

  16. A grass molecular identification system for forensic botany: a critical evaluation of the strengths and limitations.

    Science.gov (United States)

    Ward, Jodie; Gilmore, Simon R; Robertson, James; Peakall, Rod

    2009-11-01

    Plant material is frequently encountered in criminal investigations but often overlooked as potential evidence. We designed a DNA-based molecular identification system for 100 Australian grasses that consisted of a series of polymerase chain reaction assays that enabled the progressive identification of grasses to different taxonomic levels. The identification system was based on DNA sequence variation at four chloroplast and two mitochondrial loci. Seventeen informative indels and 68 single-nucleotide polymorphisms were utilized as molecular markers for subfamily to species-level identification. To identify an unknown sample to subfamily level required a minimum of four markers or nine markers for species identification. The accuracy of the system was confirmed by blind tests. We have demonstrated "proof of concept" of a molecular identification system for trace botanical samples. Our evaluation suggests that the adoption of a system that combines this approach with DNA sequencing could assist the morphological identification of grasses found as forensic evidence. PMID:19818109

  17. Online Identification of a Mechanical System in the Frequency Domain with Short-Time DFT

    Directory of Open Access Journals (Sweden)

    Niko Nevaranta

    2015-07-01

    Full Text Available A proper system identification method is of great importance in the process of acquiring an analytical model that adequately represents the characteristics of the monitored system. While the use of different time-domain online identification techniques has been widely recognized as a powerful approach for system diagnostics, the frequency domain identification techniques have primarily been considered for offline commissioning purposes. This paper addresses issues in the online frequency domain identification of a flexible two-mass mechanical system with varying dynamics, and a particular attention is paid to detect the changes in the system dynamics. An online identification method is presented that is based on a recursive Kalman filter configured to perform like a discrete Fourier transform (DFT at a selected set of frequencies. The experimental online identification results are compared with the corresponding values obtained from the offline-identified frequency responses. The results show an acceptable agreement and demonstrate the feasibility of the proposed identification method.

  18. Benchmarking the operational search accuracy of a national identification system

    Science.gov (United States)

    Suman, Ambika; Whitaker, Geoff

    2005-03-01

    This paper reports on some of the challenges associated with setting up and conducting a full operational benchmark of a palm and fingerprint identification system, based on PITO's own recent experience in this field. The tests described were undertaken as part of the overall evaluation of suppliers tendering for a multi million pound contract to deliver a new national automated fingerprint service for the UK (known as IDENT1), as a successor to the existing systems, both in England and Wales, and in Scotland. The emphasis throughout was on 'operationally' representative testing and it was this that determined the design and scale of the tests, which PITO believes are the largest such tests of a national AFIS ever undertaken. The knowledge gained from performing these benchmark tests has provided PITO with extremely valuable experience in both the theoretical and practical issues surrounding the design and conduct of operational tests on large scale identification systems, and it is these issues that are discussed in this paper.

  19. Design of an advanced positron emission tomography detector system and algorithms for imaging small animal models of human disease

    Science.gov (United States)

    Foudray, Angela Marie Klohs

    Detecting, quantifying and visualizing biochemical mechanism in a living system without perturbing function is the goal of the instrument and algorithms designed in this thesis. Biochemical mechanisms of cells have long been known to be dependent on the signals they receive from their environment. Studying biological processes of cells in-vitro can vastly distort their function, since you are removing them from their natural chemical signaling environment. Mice have become the biological system of choice for various areas of biomedical research due to their genetic and physiological similarities with humans, the relatively low cost of their care, and their quick breeding cycle. Drug development and efficacy assessment along with disease detection, management, and mechanism research all have benefited from the use of small animal models of human disease. A high resolution, high sensitivity, three-dimensional (3D) positioning positron emission tomography (PET) detector system was designed through device characterization and Monte Carlo simulation. Position-sensitive avalanche photodiodes (PSAPDs) were characterized in various packaging configurations; coupled to various configurations of lutetium oxyorthosilicate (LSO) scintillation crystals. Forty novelly packaged final design devices were constructed and characterized, each providing characteristics superior to commercially available scintillation detectors used in small animal imaging systems: ˜1mm crystal identification, 14-15% of 511 keV energy resolution, and averaging 1.9 to 5.6 ns coincidence time resolution. A closed-cornered box-shaped detector configuration was found to provide optimal photon sensitivity (˜10.5% in the central plane) using dual LSO-PSAPD scintillation detector modules and Monte Carlo simulation. Standard figures of merit were used to determine optimal system acquisition parameters. A realistic model for constituent devices was developed for understanding the signals reported by the

  20. LABAQM - A SYSTEM FOR QUALITATIVE MODELLING AND ANALYSIS OF ANIMAL BEHAVIOUR

    OpenAIRE

    Matetić, Maja; Ribarić, Slobodan; Ipšić, Ivo

    2002-01-01

    Tracking of a laboratory animal and its behaviour interpretation based on frame sequence analysis have been traditionally quantitative and typically generates large amounts of temporally evolving data. In our work we are dealing with higher-level approaches such as conceptual clustering and qualitative modelling in order to represent data obtained by tracking. We present the LABAQM system developed for the analysis of laboratory animal behaviours. It is based on qualitative modelling of anima...

  1. The oxytocin system in drug discovery for autism: Animal models and novel therapeutic strategies

    OpenAIRE

    Modi, Meera E.; Young, Larry J.

    2011-01-01

    Animal models and behavioral paradigms are critical for elucidating the neural mechanism involved in complex behaviors, including social cognition. Both genotype and phenotype based models have implicated the neuropeptide oxytocin (OT) in the regulation of social behavior. Based on the findings in animal models, alteration of the OT system has been hypothesized to play a role in the social deficits associated with autism and other neuropsychiatric disorders. While the evidence linking the pep...

  2. A roadmap for the development of alternative (non-animal) methods for systemic toxicity testing

    OpenAIRE

    Ruhdel, Irmela; Vanparys, Philippe; Knudsen, Thomas B.; Roggen, Erwin; Oué draogo, Gladys; Basketter, David A.; Daneshian, Mardas; Eskes, Chantra; Rossi, Annamaria; Skinner, Nigel; Blaauboer, Bas; Pelkonen, Olavi; Maxwell, Gavin; Yager, James

    2012-01-01

    Systemic toxicity testing forms the cornerstone for the safety evaluation of substances. Pressures to move from traditional animal models to novel technologies arise from various concerns, including: the need to evaluate large numbers of previously untested chemicals and new products (such as nanoparticles or cell therapies), the limited predictivity of traditional tests for human health effects, duration and costs of current approaches, and animal welfare considerations. The latter holds esp...

  3. A TWO-PHASE APPROACH TO FUZZY SYSTEM IDENTIFICATION

    Institute of Scientific and Technical Information of China (English)

    Ta-Wei HUNG; Shu-Cherng FANG; Henry L.W.NUTTLE

    2003-01-01

    A two-phase approach to fuzzy system identification is proposed. The first phase produces a baseline design to identify a prototype fuzzy system for a target system from a coIlection of input-output data pairs. It uses two easily implemented clustering techniques: the subtractive clustering method and the fuzzy c-means (FCM) clustering algorithm. The second phase (fine tuning)is executed to adjust the parameters identified in the baseline design. This phase uses the steepest descent and recursive least-squares estimation methods. The proposed approach is validated by applying it to both a function approximation type of problem and a classification type of problem. An analysis of the learning behavior of the proposed approach for the two test problems is conducted for further confirmation.

  4. Part identification in robotic assembly using vision system

    Science.gov (United States)

    Balabantaray, Bunil Kumar; Biswal, Bibhuti Bhusan

    2013-12-01

    Machine vision system acts an important role in making robotic assembly system autonomous. Identification of the correct part is an important task which needs to be carefully done by a vision system to feed the robot with correct information for further processing. This process consists of many sub-processes wherein, the image capturing, digitizing and enhancing, etc. do account for reconstructive the part for subsequent operations. Interest point detection of the grabbed image, therefore, plays an important role in the entire image processing activity. Thus it needs to choose the correct tool for the process with respect to the given environment. In this paper analysis of three major corner detection algorithms is performed on the basis of their accuracy, speed and robustness to noise. The work is performed on the Matlab R2012a. An attempt has been made to find the best algorithm for the problem.

  5. Developing a personal computer based expert system for radionuclide identification

    International Nuclear Information System (INIS)

    Several expert system development tools are available for personal computers today. We have used one of the LISP-based high end tools for nearly two years in developing an expert system for identification of gamma sources. The system contains a radionuclide database of 2055 nuclides and 48000 gamma transitions with a knowledge base of about sixty rules. This application combines a LISP-based inference engine with database management and relatively heavy numerical calculations performed using C-language. The most important feature needed has been the possibility to use LISP and C together with the more advanced object oriented features of the development tool. Main difficulties have been long response times and the big amount (10-16 MB) of computer memory required

  6. Evolution of the US Coast Guard's oil identification system

    International Nuclear Information System (INIS)

    The U.S. Coast Guard, tasked with the development of open-quotes procedures and techniques to be employed in identifying ... oil and hazardous substances . . . open-quotes by the 1972 Federal Water Pollution Control Act (FWPCA), developed the Oil Identification System (OIS). The OIS was based on four analytical laboratory techniques: infrared (IR) and fluorescence (FL) spectroscopy, gas chromatography (GC), and thin- layer chromatography (TLC). A Central Oil Identification Laboratory (COIL) began operation in 1977, and field laboratories (FOILS) using two of the techniques (FL and TLC) were established in many Marine Safety Offices to screen possible sources. Development of the OIS was documented in two formal reports, in 1974 and 1977. The current implementation of the OIS at COIL is still based on a multimethod approach, but it incorporates today's state-of-the-art technology and responds to the current needs of the Coast Guard. One pervasive force for change has been the affordability of computers. The rapid development of computerized instruments has resulted in improvements in the performance, ruggedness, and prices of analytical laboratory equipment. All the instruments in the authors' laboratory at the present time are interfaced to or have internal computerized data-handling systems. Fourier-transform infrared spectrometers (FTIR) have replaced older mechanically scanning, dispersive IR instruments. High-performance liquid chromatography (HPLC) has replaced TLC completely. A gas chromatography/mass spectrometer (GC/MS), a room-size research tool in 1977, sits on a benchtop in the laboratory today, and a standard method for oil identification is being developed for this technique. Laboratory strategies are now based on finding the most efficient use of resources, as rapid response times are not necessary in all cases. It may also be possible in the near future to resume field testing

  7. Nordic-Baltic Student Teachers' Identification of and Interest in Plant and Animal Species: The Importance of Species Identification and Biodiversity for Sustainable Development

    Science.gov (United States)

    Palmberg, Irmeli; Berg, Ida; Jeronen, Eila; Kärkkäinen, Sirpa; Norrgård-Sillanpää, Pia; Persson, Christel; Vilkonis, Rytis; Yli-Panula, Eija

    2015-01-01

    Knowledge of species, interest in nature, and nature experiences are the factors that best promote interest in and understanding of environmental issues, biodiversity and sustainable life. The aim of this study is to investigate how well student teachers identify common local species, their interest in and ideas about species identification, and…

  8. Identification of new flagellin-encoding fliC genes in Escherichia coli isolated from domestic animals using RFLP-PCR and sequencing methods

    Directory of Open Access Journals (Sweden)

    Cláudia de Moura

    2013-04-01

    Full Text Available Identification of Escherichia coli requires knowledge regarding the prevalent serotypes and virulence factors profiles allows the classification in pathogenic/non-pathogenic. However, some of these bacteria do not express flagellar antigen invitro. In this case the PCR-restriction fragment length polymorphism (RFLP-PCR and sequencing of the fliC may be suitable for the identification of antigens by replacing the traditional serology. We studied 17 samples of E. coli isolated from animals and presenting antigen H nontypeable (HNT. The H antigens were characterized by PCR-RFLP and sequencing of fliC gene. Three new flagellin genes were identified, for which specific antisera were obtained. The PCR-RFLP was shown to be faster than the serotyping H antigen in E. coli, provided information on some characteristics of these antigens and indicated the presence of new genes fliC.

  9. An interactive system for seismic signal detection and identification

    International Nuclear Information System (INIS)

    The methods to distinguish an underground explosion from an earthquake are mainly based on exploiting the differences in the source functions of the two processes and locating the depth of source. Various characteristics of seismic signals generated by these sources are usually represented by different parameters or identifiers. However, it is not possible for a single identifier to distinguish an explosion from an earthquake with equal effectiveness in all situations. Usually a combination of several identifiers is found to provide effective means for the identification of seismic sources. In order to use the multiple parameters in an optimum way, an interactive system (IS) for detection and identification of global events has been developed using short period data of Gauribidanur array. This report describes the salient features of the IS and demonstrates its effectiveness in identifying an event using weighted combination of the parameters together with the depth of source. It is intended to augment the system with long period data in the next phase of the development. (author). 37 refs., 14 figs., 2 tabs

  10. All-optical automatic pollen identification: Towards an operational system

    Science.gov (United States)

    Crouzy, Benoît; Stella, Michelle; Konzelmann, Thomas; Calpini, Bertrand; Clot, Bernard

    2016-09-01

    We present results from the development and validation campaign of an optical pollen monitoring method based on time-resolved scattering and fluorescence. Focus is first set on supervised learning algorithms for pollen-taxa identification and on the determination of aerosol properties (particle size and shape). The identification capability provides a basis for a pre-operational automatic pollen season monitoring performed in parallel to manual reference measurements (Hirst-type volumetric samplers). Airborne concentrations obtained from the automatic system are compatible with those from the manual method regarding total pollen and the automatic device provides real-time data reliably (one week interruption over five months). In addition, although the calibration dataset still needs to be completed, we are able to follow the grass pollen season. The high sampling from the automatic device allows to go beyond the commonly-presented daily values and we obtain statistically significant hourly concentrations. Finally, we discuss remaining challenges for obtaining an operational automatic monitoring system and how the generic validation environment developed for the present campaign could be used for further tests of automatic pollen monitoring devices.

  11. Detection and species identification of Campylobacter in stool samples of children and animals from Vellore, south India

    Directory of Open Access Journals (Sweden)

    P Rajendran

    2012-01-01

    Full Text Available Campylobacter spp. are an important cause of bacterial gastroenteritis frequently isolated from animal, poultry and environmental samples. In this study, we investigated the zoonotic potential of Campylobacter spp. by comparing prevalence rates and species in 394 children with diarrhoea and 652 animals in Vellore using PCR-based tools. Eighteen children (4.5% had campylobacteriosis, a majority of whom had co-pathogens (15/18 and most were infected with Campylobacter jejuni (16/18. A few C. coli and mixed infections with both species were also seen. Among the animal samples, 16/25 chicken samples (64% were positive and all were found to be C. jejuni.

  12. Skeletal Muscle Troponin I (TnI) in Animal Fat Tissues to Be Used as Biomarker for the Identification of Fat Adulteration

    OpenAIRE

    Park, Bong-Sup; Oh, Young-Kyoung; Kim, Min-Jin; Shim, Won-Bo

    2014-01-01

    In this study, the existence of skeletal muscle troponin I (smTnI), well-known as a muscle protein in fat tissues, and the utilization of smTnI as a biomarker for the identification of fat adulteration were investigated. A commercial antibody (ab97427) specific to all of animals smTnI was used in this study. Fat and meat samples (cooked and non-cooked) of pork and beef, and chicken considered as representative meats were well minced and extracted by heating and non-heating methods, and the ex...

  13. A unified process for systems identification based on performance assessment

    Science.gov (United States)

    Hyland, C.; Shipley, J. W.

    1988-01-01

    Many modern spacecraft are complex multi-body dynamic systems where the bodies are connected by several active control systems for pointing and isolation. Mission requirements indicate that many structural modes and possibly some nonlinear effects will require characterization. Thus, even characterization at the subsystem level will become more difficult than usual. System level characterization difficulties will be compounded by the fact that only limited ground testing will be possible on the full up system, and flight testing will be restricted by an extremely limited measurements set. The object of the present discussion is the application of matrix majorant theory to the problem of assessing dynamic system performance when knowledge of the system is uncertain. We show how majorants provide an effective tool to relate required performance output to system identification test quality in terms of residual uncertainty in input-output relations, parameter values, nonlinearities, and interactions. The underlying machinery consists of the block-norm matrix which is a nonnegative matrix each of whose elements is the norm of a block of a suitably partitioned matrix. A matrix which bounds the block-norm matrix in the sense of nonnegative matrices, i.e., element by element is known as a majorant.

  14. Qualitative Analysis of Chaos in Nonlinear Sampled Data Systems and System Identification

    OpenAIRE

    Haynes, B.R.; S. A. Billings

    1991-01-01

    The analysis of nonlinear sampled data systems is considered. A qualitative approach is adopted in which the system is suspended in a parameterised cell state space framework. Application of a global unravelling algorithm reveals the type of behaviour typically found using dynamical systems techniques. Steady state, periodic and aperiodic or chaotic behaviour is detected. System identification techniques are then applied. The resulting nonlinear recursive input output model is also analysed w...

  15. Autonomous identification of matrices in the APNea system

    International Nuclear Information System (INIS)

    The APNea System is a passive and active neutron assay device which features imaging to correct for nonuniform distributions of source material. Since the imaging procedure requires a detailed knowledge of both the detection efficiency and the thermal neutron flux for (sub)volumes of the drum of interest, it is necessary to identify which mocked-up matrix, to be used for detailed characterization studies, best matches the matrix of interest. A methodology referred to as the external matrix probe (EMP) has been established which links external measures of a drum matrix to those of mocked-up matrices. These measures by themselves are sufficient to identify the appropriate mock matrix, from which the necessary characterization data are obtained. This independent matrix identification leads to an autonomous determination of the required system response parameters for the assay analysis

  16. Wiener-Hammerstein system identification - an evolutionary approach

    Science.gov (United States)

    Naitali, Abdessamad; Giri, Fouad

    2016-01-01

    The problem of identifying parametric Wiener-Hammerstein (WH) systems is addressed within the evolutionary optimisation context. Specifically, a hybrid culture identification method is developed that involves model structure adaptation using genetic recombination and model parameter learning using particle swarm optimisation. The method enjoys three interesting features: (1) the risk of premature convergence of model parameter estimates to local optima is significantly reduced, due to the constantly maintained diversity of model candidates; (2) no prior knowledge is needed except for upper bounds on the system structure indices; (3) the method is fully autonomous as no interaction is needed with the user during the optimum search process. The performances of the proposed method will be illustrated and compared to alternative methods using a well-established WH benchmark.

  17. Force-chain identification in quasi-2D granular systems

    Science.gov (United States)

    Zhang, Ling; Wu, Jun-Qi; Zhang, Jie

    2013-06-01

    Understanding the properties of force-chains is essential in understanding the physical and mechanical properties of granular materials. The key is to identify force-chains. In this study, we describe a systematic method to identify individual force-chains in 2D granular systems under different external load-pure shear or isotropic compression, where bi-disperse photo-elastic particles were used in order to measure vector contact forces between particles. Using this method, we studied the statistics of force-chain size distribution in these two systems: in pure shear, the distribution shows a fat tail that deviates from an exponential distribution function, whereas in isotropic compression, the distribution decays exponentially. In addition, we also investigated the dependence of various force-chain statistics on two main parameters defined in the force-chain identification algorithm.

  18. 加拿大的动物福利制度%The Animal Welfare System of Canada

    Institute of Scientific and Technical Information of China (English)

    田琳

    2005-01-01

    This paper makes an analysis on the animal wefare system and takes emphasis on the anmal welfare system of Canda and the resaon Canda takes this system Also.the paper evaluates the resaonableness of this system and wants to give the examples of the tegislation of animal welfare system in our country.

  19. Model Identification of Hydrostatic Center Frame Control System based on MATLAB

    OpenAIRE

    Zhongwen Wang; Ruizhen Duan; Xiaoqiu Xu

    2013-01-01

    The composition and principle of an electro-hydraulic servo oil film stiffness control system of hydrostatic center frame will be introduced, and the system model identification as well as the verification will be carried out based on semi-physical simulation environment of Real-time Workshop (RTW) and system identification toolbox in MATLAB. A control strategy of fuzzy sliding model variable structure will be presented , and it is applied in the model achieved by identifications, adopting th...

  20. Environmental control and life support systems analysis for a Space Station life sciences animal experiment

    Science.gov (United States)

    So, Kenneth T.; Hall, John B., Jr.; Thompson, Clifford D.

    1987-01-01

    NASA's Langley and Goddard facilities have evaluated the effects of animal science experiments on the Space Station's Environmental Control and Life Support System (ECLSS) by means of computer-aided analysis, assuming an animal colony consisting of 96 rodents and eight squirrel monkeys. Thirteen ECLSS options were established for the reclamation of metabolic oxygen and waste water. Minimum cost and weight impacts on the ECLSS are found to accrue to the system's operation in off-nominal mode, using electrochemical CO2 removal and a static feed electrolyzer for O2 generation.

  1. Encryption and validation of multiple signals for optical identification systems

    International Nuclear Information System (INIS)

    Multifactor encryption-authentication technique reinforces optical security by allowing the simultaneous A N D-verification of more than one primary image. Instead of basing the identification on a unique signature or piece of information, our goal is to authenticate a given person, object, vehicle by the simultaneous recognition of several factors. Some of them are intrinsic to the person and object or vehicle under control. Other factors, act as keys of the authentication step. Such a system is proposed for situations such as the access control to restricted areas, where the demand of security is high. The multifactor identification method involves double random-phase encoding, fully phase-based encryption and a combined nonlinear joint transform correlator and a classical 4f-correlator for simultaneous recognition and authentication of multiple images. The encoded signal fulfils the general requirements of invisible content, extreme difficulty in counterfeiting and real-time automatic verification. Four reference double-phase encoded images are compared with the retrieved input images obtained in situ from the person or the vehicle whose authentication is wanted and from a database. A recognition step based on the correlation between the signatures and the stored references determines the authentication or rejection of the person and object under surveillance

  2. Algorithms and tools for system identification using prior knowledge

    International Nuclear Information System (INIS)

    One of the hardest problems in system identification is that of model structure selection. In this thesis two different kinds of a priori process knowledge are used to address this fundamental problem. Concentrating on linear model structures, the first prior advantage of is knowledge about the systems' dominating time constants and resonance frequencies. The idea is to generalize FIR modelling by replacing the usual delay operator with discrete so-called Laguerre or Kautz filters. The generalization is such that stability, the linear regression structure and the approximation ability of the FIR model structure is retained, whereas the prior is used to reduce the number of parameters needed to arrive at a reasonable model. Tailorized and efficient system identification algorithms for these model structures are detailed in this work. The usefulness of the proposed methods is demonstrated through concrete simulation and application studies. The other approach is referred to as semi-physical modelling. The main idea is to use simple physical insight into the application, often in terms of a set of unstructured equations, in order to come up with suitable nonlinear transformation of the raw measurements, so as to allow for a good model structure. Semi-physical modelling is less ''ambitious'' than physical modelling in that no complete physical structure is sought, just combinations of inputs and outputs that can be subjected to more or less standard model structures, such as linear regressions. The suggested modelling procedure shows a first step where symbolic computations are employed to determine a suitable model structure - a set of regressors. We show how constructive methods from commutative and differential algebra can be applied for this. Subsequently, different numerical schemes for finding a subset of ''good'' regressors and for estimating the corresponding linear-in-the-parameters model are discussed. 107 refs, figs, tabs

  3. A Human-Animal-Robot Cooperative System for Anti-Personal Mine Detection

    OpenAIRE

    Nanayakkara, Thrishantha; Dissanayake, Tharindu; Mahipala, Prasanna; Sanjaya, K. A. Gayan

    2008-01-01

    To the best of the author's knowledge, this is the first time a human-robot-animal integrated system is tested for antipersonnel landmine detection. The proposed system tries to integrate distinct capabilities of three different systems to improve the effectiveness of landmine detection in a cluttered environment. The mongoose is found to be a rodent with extremely sensitive olfactory capabilities, dexterous navigation capabilities in a cluttered environment, and small enough to burrow throug...

  4. Orthonormal filters for identification in active control systems

    Science.gov (United States)

    Mayer, Dirk

    2015-12-01

    Many active noise and vibration control systems require models of the control paths. When the controlled system changes slightly over time, adaptive digital filters for the identification of the models are useful. This paper aims at the investigation of a special class of adaptive digital filters: orthonormal filter banks possess the robust and simple adaptation of the widely applied finite impulse response (FIR) filters, but at a lower model order, which is important when considering implementation on embedded systems. However, the filter banks require prior knowledge about the resonance frequencies and damping of the structure. This knowledge can be supposed to be of limited precision, since in many practical systems, uncertainties in the structural parameters exist. In this work, a procedure using a number of training systems to find the fixed parameters for the filter banks is applied. The effect of uncertainties in the prior knowledge on the model error is examined both with a basic example and in an experiment. Furthermore, the possibilities to compensate for the imprecise prior knowledge by a higher filter order are investigated. Also comparisons with FIR filters are implemented in order to assess the possible advantages of the orthonormal filter banks. Numerical and experimental investigations show that significantly lower computational effort can be reached by the filter banks under certain conditions.

  5. 78 FR 46940 - Hazardous and Solid Waste Management System: Identification and Listing of Special Wastes...

    Science.gov (United States)

    2013-08-02

    ... AGENCY RIN 2050-AE81 Hazardous and Solid Waste Management System: Identification and Listing of Special... conjunction with the proposed rule: Hazardous and Solid Waste Management System: Identification and Listing of...) Mail: Send two copies of your comments to Hazardous and Solid Waste Management System:...

  6. Modeling and identification of a leaf spring system

    Energy Technology Data Exchange (ETDEWEB)

    Clavel, A. [Technocentre Renault, TCR RUC, Guyancourt (France); Sorine, M. [INRIA, Rocquencourt, Le Chesnay (France); Zhang, Q. [IRISA-INRIA, Campus de Beaulieu, Rennes (France)

    2001-07-01

    Leaf spring suspension systems, commonly used in industrial vehicles, have strong nonlinear behaviors. We propose in this paper to model the total force generated by a leaf spring as the result of a spring elastic force and a dry friction force. The considered dry friction model is based on a particular form of the differential hysteresis models proposed by one of the authors of this paper in earlier works. We also establish the relationship between our model and a discrete-time model existing in the literature through a discretization and a change of parametrization. Results obtained from experimentations on a real truck illustrate the effectiveness of the proposed model and the associated identification method. (orig.)

  7. Compressive System Identification in the Linear Time-Invariant framework

    KAUST Repository

    Toth, Roland

    2011-12-01

    Selection of an efficient model parametrization (model order, delay, etc.) has crucial importance in parametric system identification. It navigates a trade-off between representation capabilities of the model (structural bias) and effects of over-parametrization (variance increase of the estimates). There exists many approaches to this widely studied problem in terms of statistical regularization methods and information criteria. In this paper, an alternative ℓ 1 regularization scheme is proposed for estimation of sparse linear-regression models based on recent results in compressive sensing. It is shown that the proposed scheme provides consistent estimation of sparse models in terms of the so-called oracle property, it is computationally attractive for large-scale over-parameterized models and it is applicable in case of small data sets, i.e., underdetermined estimation problems. The performance of the approach w.r.t. other regularization schemes is demonstrated in an extensive Monte Carlo study. © 2011 IEEE.

  8. A Markov Chain Monte Carlo Based Method for System Identification

    Energy Technology Data Exchange (ETDEWEB)

    Glaser, R E; Lee, C L; Nitao, J J; Hanley, W G

    2002-10-22

    This paper describes a novel methodology for the identification of mechanical systems and structures from vibration response measurements. It combines prior information, observational data and predictive finite element models to produce configurations and system parameter values that are most consistent with the available data and model. Bayesian inference and a Metropolis simulation algorithm form the basis for this approach. The resulting process enables the estimation of distributions of both individual parameters and system-wide states. Attractive features of this approach include its ability to: (1) provide quantitative measures of the uncertainty of a generated estimate; (2) function effectively when exposed to degraded conditions including: noisy data, incomplete data sets and model misspecification; (3) allow alternative estimates to be produced and compared, and (4) incrementally update initial estimates and analysis as more data becomes available. A series of test cases based on a simple fixed-free cantilever beam is presented. These results demonstrate that the algorithm is able to identify the system, based on the stiffness matrix, given applied force and resultant nodal displacements. Moreover, it effectively identifies locations on the beam where damage (represented by a change in elastic modulus) was specified.

  9. Research on the Identification Modeling of Air-Magnet Active Vibration Isolation System

    Directory of Open Access Journals (Sweden)

    Wen Xianglong

    2015-01-01

    Full Text Available The methods of the identification modeling of air-magnet active vibration isolation system (AMAVIS are studied. Difference equation model and transfer function model are established respectively in the time domain and frequency domain. The models are analyzed and proved by the experiment. Identification results show that the order of frequency identification is higher than the time identification model. But when it comes to accuracy and convergence, frequency identification model has obvious advantage. This paper provides evidence for subsequent active vibration control. The conclusion is the basic of subsequent experiment and research.

  10. Courseware Development with Animated Pedagogical Agents in Learning System to Improve Learning Motivation

    Science.gov (United States)

    Chin, Kai-Yi; Hong, Zeng-Wei; Huang, Yueh-Min; Shen, Wei-Wei; Lin, Jim-Min

    2016-01-01

    The addition of animated pedagogical agents (APAs) in computer-assisted learning (CAL) systems could successfully enhance students' learning motivation and engagement in learning activities. Conventionally, the APA incorporated multimedia materials are constructed through the cooperation of teachers and software programmers. However, the thinking…

  11. Augmenting Instructional Animations with a Body Analogy to Help Children Learn about Physical Systems.

    Science.gov (United States)

    Pouw, Wim T J L; van Gog, Tamara; Zwaan, Rolf A; Paas, Fred

    2016-01-01

    We investigated whether augmenting instructional animations with a body analogy (BA) would improve 10- to 13-year-old children's learning about class-1 levers. Children with a lower level of general math skill who learned with an instructional animation that provided a BA of the physical system, showed higher accuracy on a lever problem-solving reaction time task than children studying the instructional animation without this BA. Additionally, learning with a BA led to a higher speed-accuracy trade-off during the transfer task for children with a lower math skill, which provided additional evidence that especially this group is likely to be affected by learning with a BA. However, overall accuracy and solving speed on the transfer task was not affected by learning with or without this BA. These results suggest that providing children with a BA during animation study provides a stepping-stone for understanding mechanical principles of a physical system, which may prove useful for instructional designers. Yet, because the BA does not seem effective for all children, nor for all tasks, the degree of effectiveness of body analogies should be studied further. Future research, we conclude, should be more sensitive to the necessary degree of analogous mapping between the body and physical systems, and whether this mapping is effective for reasoning about more complex instantiations of such physical systems. PMID:27375538

  12. Small animal optoacoustic tomography system for molecular imaging of contrast agents

    Science.gov (United States)

    Su, Richard; Liopo, Anton; Ermilov, Sergey A.; Oraevsky, Alexander A.

    2016-03-01

    We developed a new and improved Laser Optoacoustic Imaging System, LOIS-3D for preclinical research applications in small animal models. The advancements include (i) a new stabilized imaging module with a more homogeneous illumination of the mouse yielding a better spatial resolution (bioluminescence based modalities for molecular imaging in live mice.

  13. Use of Gamagrass as Hay or Silage in animal Production Systems

    Science.gov (United States)

    The use of native grasses to improve wildlife habitat is receiving consideration by conservation and wildlife interests. The potential use of native grasses in animal production systems, and particularly as conserved forage, has received little attention. Two experiments in each of 2 yr were condu...

  14. Rapid and Accurate Identification of Animal Species in Natural Leather Goods by Liquid Chromatography/Mass Spectrometry

    Science.gov (United States)

    Izuchi, Yukari; Takashima, Tsuneo; Hatano, Naoya

    2016-01-01

    The demand for leather goods has grown globally in recent years. Industry revenue is forecast to reach $91.2 billion by 2018. There is an ongoing labelling problem in the leather items market, in that it is currently impossible to identify the species that a given piece of leather is derived from. To address this issue, we developed a rapid and simple method for the specific identification of leather derived from cattle, horses, pigs, sheep, goats, and deer by analysing peptides produced by the trypsin-digestion of proteins contained in leather goods using liquid chromatography/mass spectrometry. We determined species-specific amino acid sequences by liquid chromatography/tandem mass spectrometry analysis using the Mascot software program and demonstrated that collagen α-1(I), collagen α-2(I), and collagen α-1(III) from the dermal layer of the skin are particularly useful in species identification. PMID:27313979

  15. Closed-loop Identification for Control of Linear Parameter Varying Systems

    DEFF Research Database (Denmark)

    Bendtsen, Jan Dimon; Trangbæk, Klaus

    2014-01-01

    , closed- loop system identification is more difficult than open-loop identification. In this paper we prove that the so-called Hansen Scheme, a technique known from linear time-invariant systems theory for transforming closed-loop system identification problems into open-loop-like problems, can be......This paper deals with system identification for control of linear parameter varying systems. In practical applications, it is often important to be able to identify small plant changes in an incremental manner without shutting down the system and/or disconnecting the controller; unfortunately...... extended to accommodate linear parameter varying systems as well. We investigate the identified subsystem’s parameter dependency and observe that, under mild assumptions, the identified subsystem is affine in the parameter vector. Various identification methods are compared in direct and Hansen Scheme...

  16. 75 FR 25137 - Changes to Standard Numbering System, Vessel Identification System, and Boating Accident Report...

    Science.gov (United States)

    2010-05-07

    ... Boating Accident Report Database CFR Code of Federal Regulations DHS Department of Homeland Security FR... notice regarding our public dockets in the January 17, 2008 issue of the Federal Register (73 FR 3316). D..., Vessel Identification System, and Boating Accident Report Database AGENCY: Coast Guard, DHS....

  17. 75 FR 49869 - Changes to Standard Numbering System, Vessel Identification System, and Boating Accident Report...

    Science.gov (United States)

    2010-08-16

    ... in the January 17, 2008, issue of the Federal Register (73 FR 3316). Reopening of Comment Period On May 7, 2010, we published a notice of proposed rulemaking (NPRM) in the Federal Register (75 FR 25137..., Vessel Identification System, and Boating Accident Report Database AGENCY: Coast Guard, DHS....

  18. Design and development of SPONGIA, an expert system for sponges identification

    OpenAIRE

    Domingo i Gou, Marta; Uriz, María Jesús

    1998-01-01

    [EN] This paper reports on the design and development of SPONGIA, an expert system to help in the identification of marine sponges. In this field, taxonomic difficulty is noticeable and systematists are scarce. SPONGIA is directed towards identification at any single taxonomic level starting from the class level. With this feature, the system is not restricted to identify only the species rank and the identification stops at a given taxonomic rank (order, family...) depending on the available...

  19. Human identification system based on the detection of optical Disc Ring in retinal images

    OpenAIRE

    Chihaoui, Takwa; Kachouri, Rostom; Jlassi, Hejer; Akil, Mohamed; Hamrouni, Kamel

    2015-01-01

    Retinal identification is being studied as a hot research topic in the biometric field. Many factors such as the poor quality of retinal images and the huge execution time can seriously affect the performance of the retinal identification systems. In this context, in order to compromise the quality and the processing time, this paper presents a human identification system based on a new preprocessing method of retinal images that we call optical Disc Ring detection method. The proposed ODR me...

  20. Identification of hotspots in the European union for the introduction of four zoonotic arboviroses by live animal trade.

    Directory of Open Access Journals (Sweden)

    Benoit Durand

    Full Text Available Live animal trade is considered a major mode of introduction of viruses from enzootic foci into disease-free areas. Due to societal and behavioural changes, some wild animal species may nowadays be considered as pet species. The species diversity of animals involved in international trade is thus increasing. This could benefit pathogens that have a broad host range such as arboviruses. The objective of this study was to analyze the risk posed by live animal imports for the introduction, in the European Union (EU, of four arboviruses that affect human and horses: Eastern and Western equine encephalomyelitis, Venezuelan equine encephalitis and Japanese encephalitis. Importation data for a five-years period (2005-2009, extracted from the EU TRACES database, environmental data (used as a proxy for the presence of vectors and horses and human population density data (impacting the occurrence of clinical cases were combined to derive spatially explicit risk indicators for virus introduction and for the potential consequences of such introductions. Results showed the existence of hotspots where the introduction risk was the highest in Belgium, in the Netherlands and in the north of Italy. This risk was higher for Eastern equine encephalomyelitis (EEE than for the three other diseases. It was mainly attributed to exotic pet species such as rodents, reptiles or cage birds, imported in small-sized containments from a wide variety of geographic origins. The increasing species and origin diversity of these animals may have in the future a strong impact on the risk of introduction of arboviruses in the EU.

  1. A programmable closed-loop recording and stimulating wireless system for behaving small laboratory animals

    Science.gov (United States)

    Angotzi, Gian Nicola; Boi, Fabio; Zordan, Stefano; Bonfanti, Andrea; Vato, Alessandro

    2014-08-01

    A portable 16-channels microcontroller-based wireless system for a bi-directional interaction with the central nervous system is presented in this work. The device is designed to be used with freely behaving small laboratory animals and allows recording of spontaneous and evoked neural activity wirelessly transmitted and stored on a personal computer. Biphasic current stimuli with programmable duration, frequency and amplitude may be triggered in real-time on the basis of the recorded neural activity as well as by the animal behavior within a specifically designed experimental setup. An intuitive graphical user interface was developed to configure and to monitor the whole system. The system was successfully tested through bench tests and in vivo measurements on behaving rats chronically implanted with multi-channels microwire arrays.

  2. Experience with a small animal hyperthermia ultrasound system (SAHUS): report on 83 tumours

    International Nuclear Information System (INIS)

    An external local ultrasound (US) system was developed to induce controlled hyperthermia of subcutaneously implanted tumours in small animals (e.g., mice and rats). It was designed to be compatible with a small animal positron emission tomography scanner (microPET) to facilitate studies of hyperthermia-induced tumour re-oxygenation using a PET radiopharmaceutical, but it is applicable for any small animal study requiring controlled heating. The system consists of an acrylic applicator bed with up to four independent 5 MHz planar disc US transducers of 1 cm in diameter, a four-channel radiofrequency (RF) generator, a multiple thermocouple thermometry unit, and a personal computer with custom monitoring and controlling software. Although the system presented here was developed to target tumours of up to 1 cm in diameter, the applicator design allows for different piezoelectric transducers to be exchanged and operated within the 3.5-6.5 MHz band to target different tumour sizes. Temperature feedback control software was developed on the basis of a proportional-integral-derivative (PID) approach when the measured temperatures were within a selectable temperature band about the target temperature. Outside this band, an on/off control action was applied. Perfused tissue-mimicking phantom experiments were performed to determine optimum controller gain constants, which were later employed successfully in animal experiments. The performance of the SAHUS (small animal hyperthermia ultrasound system) was tested using several tumour types grown in thighs of female nude (nu/nu) mice. To date, the system has successfully treated 83 tumours to target temperatures in the range of 41-43 deg. C for periods of 65 min on average

  3. Development of a combined microSPECT/CT system for small animal imaging

    Science.gov (United States)

    Sun, Mingshan

    Modern advances in the biomedical sciences have placed increased attention on small animals such as mice and rats as models of human biology and disease in biological research and pharmaceutical development. Their small size and fast breeding rate, their physiologic similarity to human, and, more importantly, the availability of sophisticated genetic manipulations, all have made mice and rats the laboratory mammals of choice in these experimental studies. However, the increased use of small animals in biomedical research also calls for new instruments that can measure the anatomic and metabolic information noninvasively with adequate spatial resolution and measurement sensitivity to facilitate these studies. This dissertation describes the engineering development of a combined single photon emission computed tomography (SPECT) and X-ray computed tomography (CT) system dedicated for small animals imaging. The system aims to obtain both the anatomic and metabolic images with submillimeter spatial resolution in a way that the data can be correlated to provide improved image quality and to offer more complete biological evaluation for biomedical studies involving small animals. The project requires development of complete microSPECT and microCT subsystems. Both subsystems are configured with a shared gantry and animal bed with integrated instrumentation for data acquisition and system control. The microCT employs a microfocus X-ray tube and a CCD-based detector for low noise, high resolution imaging. The microSPECT utilizes three semiconductor detectors coupled with pinhole collimators. A significant contribution of this dissertation project is the development of iterative algorithms with geometrical compensation that allows radionuclide images to be reconstructed at submillimeter spatial resolution, but with significantly higher detection efficiency than conventional methods. Both subsystems are capable of helical scans, offering lengthened field of view and improved

  4. NeuroControl: system identification approach for clinical benefit.

    Directory of Open Access Journals (Sweden)

    Carel G.M. Meskers

    2015-09-01

    Full Text Available Progress in diagnosis and treatment of movement disorders after neurological diseases like stroke, cerebral palsy, dystonia and at old age requires understanding of the altered capacity to adequately respond to physical obstacles in the environment. With posture and movement disorders, the control of muscles is hampered, resulting in aberrant force generation and improper impedance regulation. Understanding of this improper regulation not only requires the understanding of the role of the neural controller, but also attention for the 1 the interaction between the neural controller and the “plant”, comprising the biomechanical properties of the skeleton including the viscoelastic properties of the contractile (muscle and non-contractile (connective tissues: neuromechanics and 2 the closed loop nature of neural controller and biomechanical system in which cause and effect interact and are hence difficult to separate. Properties of the neural controller and the biomechanical system need to be addressed synchronously by the combination of haptic robotics, (closed loop system identification, and neuro-mechanical modelling. In this paper, we argue that assessment of neuromechanics in response to well defined environmental conditions and tasks may provide for key parameters to understand posture and movement disorders in neurological diseases and as biomarkers to increase accuracy of prediction models for functional outcome and effects of intervention.

  5. Use of Padlock Probes and Rolling Circle Amplification (RCA) for Rapid Identification of Trichophyton Species, Related to Human and Animal Disorder

    Science.gov (United States)

    Zakeri, Hamideh; Shokohi, Tahereh; Badali, Hamid; Mayahi, Saba; Didehdar, Mojtaba

    2015-01-01

    Background: The high degree of phenotypic similarity among Trichophyton species makes their identification difficult. Objectives: The current study aims to establish the use of rolling circle amplification (RCA) based on internal transcribed spacer ribosomal DNA (ITS rDNA) as a powerful, simple, and rapid procedure for distinguishing closely related organisms, and specifically to identify Trichophyton species, which cause human and animal disorders. Materials and Methods: A total of sixty-one isolates belonging to three species of Trichophyton were identified to the species level based on microscopic and macroscopic examinations and their ITS rDNA regions were sequenced. Three specific circular oligonucleotide probes targeting the ITS1 and ITS2 regions were designed to differentiate Trichophyton rubrum, T. mentagrophytes, and T. tonsurans. Results: Of the 61 putative Trichophyton clinical isolates, 52 were identified to the species level. The most common species was T. mentagrophytes var. interdigitale (31 isolates), followed by T. rubrum (11 isolates), T. tonsurans (9 isolates), and T. violaceum (1 isolates); moreover, 9 isolates were identified as non-Trichophyton species. The RCA method correctly identified four Trichophyton species and was 100% specific for each species. Neither cross-reaction between the examined species of Trichophyton nor false positive or false negative results were observed. Conclusions: Species identification of Trichophyton is crucially important for epidemiological and phylogenetic purposes and for genotype delineation. RCA based on ITS polymorphisms can be used to generate identification barcodes and as an alternative to DNA sequencing; it is a very fast, specific, and economical tool for species identification. PMID:26421127

  6. The Design of Wild Animals Monitoring System Based on 3G and Internet of Things

    OpenAIRE

    Jiang Xiao; Chenying Zeng; Zhouyan Yu

    2013-01-01

    As the rapid growth of economy and population, the wild animals’ habitat is badly damaged by the development and utilization of wild animals living environment by people. To carry out the research on wildlife monitoring technology is of great significance. Along with the advent of the era of 3G, 3G transmission technology is more and more advanced, and the Android operating system is currently the most popular operating system. The advantages and disadvantages of the existing monitoring techn...

  7. Initial results from a PET/planar small animal imaging system

    OpenAIRE

    Siegel, Stefan; Vaquero, Juan José; Aloj, L; Seidel, Jürgen; Jagoda, E.; Gandler, William R.; Eckelman, W. C.; Green, Michael V.

    1999-01-01

    A pair of stationary, opposed scintillation detectors in time coincidence is being used to create planar projection or tomographic images of small animals injected with positronemitting radiotracers. The detectors are comprised of arrays of individual crystals of bismuth germanate coupled to position-sensitive photomultiplier tubes. The system uses FERA (LeCroy Research Systems) charge-sensitive ADCs and a low cost digital YO board as a E R A bus-to-host bridge. In pro...

  8. Systems and algorithms for wireless sensor networks based on animal and natural behavior

    OpenAIRE

    Sandra Sendra; Lorena Parra; Jaime Lloret; Shafiullah Khan

    2015-01-01

    In last decade, there have been many research works about wireless sensor networks (WSNs) focused on improving the network performance as well as increasing the energy efficiency and communications effectiveness. Many of these new mechanisms have been implemented using the behaviors of certain animals, such as ants, bees, or schools of fish.These systems are called bioinspired systems and are used to improve aspects such as handling large-scale networks, provide dynamic nature, and a...

  9. Comparative systems biology between human and animal models based on next-generation sequencing methods

    Institute of Scientific and Technical Information of China (English)

    Yu-Qi ZHAO; Gong-Hua LI; Jing-Fei HUANG

    2013-01-01

    Animal models provide myriad benefits to both experimental and clinical research.Unfortunately,in many situations,they fall short of expected results or provide contradictory results.In part,this can be the result of traditional molecular biological approaches that are relatively inefficient in elucidating underlying molecular mechanism.To improve the efficacy of animal models,a technological breakthrough is required.The growing availability and application of the high-throughput methods make systematic comparisons between human and animal models easier to perform.In the present study,we introduce the concept of the comparative systems biology,which we define as "comparisons of biological systems in different states or species used to achieve an integrated understanding of life forms with all their characteristic complexity of interactions at multiple levels".Furthermore,we discuss the applications of RNA-seq and ChIP-seq technologies to comparative systems biology between human and animal models and assess the potential applications for this approach in the future studies.

  10. Microbiomes: unifying animal and plant systems through the lens of community ecology theory

    Directory of Open Access Journals (Sweden)

    Natalie eChristian

    2015-09-01

    Full Text Available The field of microbiome research is arguably one of the fastest growing in biology. Bacteria feature prominently in studies on animal health, but fungi appear to be the more prominent functional symbionts for plants. Despite the similarities in the ecological organization and evolutionary importance of animal-bacterial and plant-fungal microbiomes, there is a general failure across disciplines to integrate the advances made in each system. Researchers studying bacterial symbionts in animals benefit from greater access to efficient sequencing pipelines and taxonomic reference databases, perhaps due to high medical and veterinary interest. However, researchers studying plant-fungal symbionts benefit from the relative tractability of fungi under laboratory conditions and ease of cultivation. Thus each system has strengths to offer, but both suffer from the lack of a common conceptual framework. We argue that community ecology best illuminates complex species interactions across space and time. In this synthesis we compare and contrast the animal-bacterial and plant-fungal microbiomes using six core theories in community ecology (i.e., succession, community assembly, metacommunities, multi-trophic interactions, disturbance, restoration. The examples and questions raised are meant to spark discussion amongst biologists and lead to the integration of these two systems, as well as more informative, manipulatory experiments on microbiomes research.

  11. Environmental implications of animal agriculture: The need for integrated systems and the modelling of energy flow

    International Nuclear Information System (INIS)

    The design of sustainable livestock strategies must be judged according to the likely impact on economic, ecological, ethological and sociological issues. Technologies for tropical animal agriculture should incorporate the following elements: (a) crops that have the maximum capacity to (i) incorporate atmospheric carbon dioxide into biomass, which in turn can be fractionated into components suitable for food, feed and fuel needs, (ii) fix atmospheric nitrogen, and (iii) maintain soil fertility; (b) selection of animal species (priority to be given to monogastric animals) and feeding and management systems (strategic supplementation of ruminants; multi-rather than special-purpose animals) which maximize product:methane ratios; (c) integration of crop, livestock and fuel production from biomass in systems which permit recycling of wastes and residues and cogeneration of fuel, food and feed. Integrated production of sugar cane, multipurpose trees and water plants, and their use for production of feed for pigs and sheep (or dual purpose cattle) and fuel satisfy the constraints outlined above. They are applicable in models suitable for family farms of 1-2 ha, for entrepreneurial farms of 20-25 ha and for an emergency agroindustry (the biomass refinery) offering renewable resources as alternatives to present fossil fuel based technologies for chemical and energy needs. Elements of the proposed systems are having increasing impact in many tropical countries. 16 refs, 7 figs, 2 tabs

  12. Human-animal bonds II: the role of pets in family systems and family therapy.

    Science.gov (United States)

    Walsh, Froma

    2009-12-01

    The vast majority of pet owners regard their companion animals as family members, yet the role of pets in family systems and family therapy has received little attention in research, training, and practice. This article first notes the benefits of family pets and their importance for resilience. It then examines their role in couple and family processes and their involvement in relational dynamics and tensions. Next, it addresses bereavement in the loss of a cherished pet, influences complicating grief, and facilitation of mourning and adaptation. Finally, it explores the ways that clients' pets and the use of therapists' companion animals in animal-assisted therapy can inform and enrich couple and family therapy as valuable resources in healing. PMID:19930434

  13. Stages in the development of a dedicated positron emission tomography system for imaging small animals

    International Nuclear Information System (INIS)

    The stages in the development of a small diameter positron emission tomograph for the study of small animals are described. Initial experiments were performed with a pair of commercial, 4 mm multicrystal detectors at an inter-detector separation of 100 mm. The system's performance in this geometry was evaluated using physical and biological studies. These indicated the feasibility of using such detectors at this separation to delineate regional tracer kinetic information from small experimental animals. A small diameter, septa-less tomograph incorporating the detectors was simulated and biological data acquired which indicated the benefits of tomography compared with planar studies for imaging small animals. A tomograph incorporating 16 of the latest generation of block detector (3 mm crystals) in a ring diameter of 115 mm was constructed. The detectors were mounted on a 1 m2 vertical gantry and the system incorporated commercial hardware and software for data acquisition. The physical performance of the tomograph indicated that the spatial resolutions expected from the crystal size could be achieved at the centre of the field of view for all axes. However, the small diameter of the system resulted in larger degradation of the spatial resolution off-axis due to non-uniformity of detector sampling and photon penetration into neighbouring crystals. In spite of the physical problems posed by the small diameter of the system, useful in vivo studies on small animals are being routinely performed which assist in the development of novel radioligands and the interpretation of clinical positron emission tomography data and, in addition, provide a unique methodology to study the serial aspects of animal models of human disease. (author). 15 refs, 7 figs, 2 tabs

  14. Protokol Interchangeable Data pada VMeS (Vessel Messaging System) dan AIS (Automatic Identification System)

    OpenAIRE

    Farid Andhika; Trika Pitana; Achmad Affandi

    2012-01-01

    VMeS (Vessel Messaging System) merupakan komunikasi berbasis radio untuk mengirimkan pesan antara VMeS terminal kapal di laut dengan VMeS gateway di darat. Dalam perkembangan sistem monitoring kapal di laut umumnya menggunakan AIS (Automatic Identification System) yang telah digunakan di seluruh pelabuhan untuk memantau kondisi kapal dan mencegah tabrakan antar kapal. Dalam penelitian ini akan dirancang format data yang sesuai untuk VMeS agar bisa dilakukan proses interchangeable ke AIS sehin...

  15. 33 CFR 164.43 - Automatic Identification System Shipborne Equipment-Prince William Sound.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Automatic Identification System Shipborne Equipment-Prince William Sound. 164.43 Section 164.43 Navigation and Navigable Waters COAST GUARD... Automatic Identification System Shipborne Equipment—Prince William Sound. (a) Until December 31, 2004,...

  16. 76 FR 63252 - Hazardous and Solid Waste Management System: Identification and Listing of Special Wastes...

    Science.gov (United States)

    2011-10-12

    ...: Hazardous and Solid Waste Management System: Identification and Listing of Special Wastes; Disposal of Coal... and Solid Waste Management System: Identification and Listing of Special Wastes; Disposal of Coal... reopening the comment period on the proposed rule: Hazardous and Solid Waste Management...

  17. Identification and characterization of Cronobacter iron acquisition systems.

    Science.gov (United States)

    Grim, C J; Kothary, M H; Gopinath, G; Jarvis, K G; Beaubrun, J Jean-Gilles; McClelland, M; Tall, B D; Franco, A A

    2012-09-01

    Cronobacter spp. are emerging pathogens that cause severe infantile meningitis, septicemia, or necrotizing enterocolitis. Contaminated powdered infant formula has been implicated as the source of Cronobacter spp. in most cases, but questions still remain regarding the natural habitat and virulence potential for each strain. The iron acquisition systems in 231 Cronobacter strains isolated from different sources were identified and characterized. All Cronobacter spp. have both the Feo and Efe systems for acquisition of ferrous iron, and all plasmid-harboring strains (98%) have the aerobactin-like siderophore, cronobactin, for transport of ferric iron. All Cronobacter spp. have the genes encoding an enterobactin-like siderophore, although it was not functional under the conditions tested. Furthermore, all Cronobacter spp. have genes encoding five receptors for heterologous siderophores. A ferric dicitrate transport system (fec system) is encoded specifically by a subset of Cronobacter sakazakii and C. malonaticus strains, of which a high percentage were isolated from clinical samples. Phylogenetic analysis confirmed that the fec system is most closely related to orthologous genes present in human-pathogenic bacterial strains. Moreover, all strains of C. dublinensis and C. muytjensii encode two receptors, FcuA and Fct, for heterologous siderophores produced by plant pathogens. Identification of putative Fur boxes and expression of the genes under iron-depleted conditions revealed which genes and operons are components of the Fur regulon. Taken together, these results support the proposition that C. sakazakii and C. malonaticus may be more associated with the human host and C. dublinensis and C. muytjensii with plants. PMID:22706064

  18. Anti-sized reed bed system for animal wastewater treatment : a comparative study

    OpenAIRE

    Zhao, Y. Q.; Sun, Guangzhi; Allen, Stephen

    2004-01-01

    Two separate sets of reed bed systems were operated in parallel for the purpose to study a comparative behaviour of high strength animal wastewater treatment. Each system consisted of five-stage gravel-based reed beds. The only difference between the two systems lies in the gravel arrangement within the beds. One system employed single sized gravel as bed medium (termed as mono-sized bed) while the other used two layers of gravel with coarse grain as the upper layer (termed as anti-sized bed)...

  19. BLIND IDENTIFICATION OF A CLASS OF NONLINEAR SYSTEMS WITH CYCLOSTATIONARY INPUT

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    This letter deals with blind identification of nonlinear discrete Hammerstein system under the input signal that is cyclostationary.The first-order moment of the specific input as well as the inverse nonlinear mapping of the Hammerstein model are combined to establish a relationship between the system output and the system parameters,which implies an approach to identifying the system blindly.Simulation results demonstrate the effectiveness of this approach to blind identification of a class of nonUnear systems.

  20. Plasma lipid profiling across species for the identification of optimal animal models of human dyslipidemia[S

    Science.gov (United States)

    Yin, Wu; Carballo-Jane, Ester; McLaren, David G.; Mendoza, Vivienne H.; Gagen, Karen; Geoghagen, Neil S.; McNamara, Lesley Ann; Gorski, Judith N.; Eiermann, George J.; Petrov, Aleksandr; Wolff, Michael; Tong, Xinchun; Wilsie, Larissa C.; Akiyama, Taro E.; Chen, Jing; Thankappan, Anil; Xue, Jiyan; Ping, Xiaoli; Andrews, Genevieve; Wickham, L. Alexandra; Gai, Cesaire L.; Trinh, Tu; Kulick, Alison A.; Donnelly, Marcie J.; Voronin, Gregory O.; Rosa, Ray; Cumiskey, Anne-Marie; Bekkari, Kavitha; Mitnaul, Lyndon J.; Puig, Oscar; Chen, Fabian; Raubertas, Richard; Wong, Peggy H.; Hansen, Barbara C.; Koblan, Ken S.; Roddy, Thomas P.; Hubbard, Brian K; Strack, Alison M.

    2012-01-01

    In an attempt to understand the applicability of various animal models to dyslipidemia in humans and to identify improved preclinical models for target discovery and validation for dyslipidemia, we measured comprehensive plasma lipid profiles in 24 models. These included five mouse strains, six other nonprimate species, and four nonhuman primate (NHP) species, and both healthy animals and animals with metabolic disorders. Dyslipidemic humans were assessed by the same measures. Plasma lipoprotein profiles, eight major plasma lipid fractions, and FA compositions within these lipid fractions were compared both qualitatively and quantitatively across the species. Given the importance of statins in decreasing plasma low-density lipoprotein cholesterol for treatment of dyslipidemia in humans, the responses of these measures to simvastatin treatment were also assessed for each species and compared with dyslipidemic humans. NHPs, followed by dog, were the models that demonstrated closest overall match to dyslipidemic humans. For the subset of the dyslipidemic population with high plasma triglyceride levels, the data also pointed to hamster and db/db mouse as representative models for practical use in target validation. Most traditional models, including rabbit, Zucker diabetic fatty rat, and the majority of mouse models, did not demonstrate overall similarity to dyslipidemic humans in this study. PMID:22021650

  1. Design and performance evaluation of high-resolution small animal SPECT system

    International Nuclear Information System (INIS)

    A high-resolution and low-cost small animal single photon emission computed tomography (SPECT) system was designed based on a clinical scanner and a pinhole collimator. Optimal design schemes of a single-pinhole collimator and a seven-pinhole one were proposed, in terms of achieving the best trade-off of field of view size, spatial resolution and sensitivity. System performances of the two design schemes were compared by evaluating the average spatial resolution and sensitivity over the full field of view, and the seven-pinhole collimator design demonstrated improved resolution and better sensitivity. Monte Carlo simulation studies validate that ultra-high 0.5 mm spatial resolution can be achieved with the proposed seven-pinhole design, which is cost-effective comparing to the existing animal SPECT systems equipped with dedicated detector. (authors)

  2. Personal computer fluoroscopy CT system for small animal and specimen research

    International Nuclear Information System (INIS)

    This paper demonstrates the effectiveness and limitation of an inexpensive CT system built for research on small animals and specimens with the use of a fluoroscopic system as the imaging chain and personal computer-based hardware and software for object rotation and reconstruction. A fluoroscopic system was used as the source of x rays and for the II/TV imaging chain, where the video output served as input to a video digitizer housed in a microcomputer. The specimen or anesthesized animal was placed on a turntable, which could rotate under computer control with the use of a stepping motor. Software was written to automate data acquisition, where image acquisition alternated with moving the turntable, to get 360 degrees projection data of the object. A simple reconstruction routine was used to generate CT images from the projection data

  3. A small animal holding fixture system with positional reproducibility for longitudinal multimodal imaging

    Energy Technology Data Exchange (ETDEWEB)

    Kokuryo, Daisuke; Kimura, Yuichi; Obata, Takayuki; Yamaya, Taiga; Kawamura, Kazunori; Zhang, Ming-Rong; Kanno, Iwao; Aoki, Ichio, E-mail: ukimura@ieee.or [Molecular Imaging Center, National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage, Chiba 263-8555 (Japan)

    2010-07-21

    This study presents a combined small animal holding fixture system, termed a 'bridge capsule', which provides for small animal re-fixation with positional reproducibility. This system comprises separate holding fixtures for the head and lower body and a connecting part to a gas anesthesia system. A mouse is fixed in place by the combination of a head fixture with a movable part made from polyacetal resin, a lower body fixture made from vinyl-silicone and a holder for the legs and tail. For re-fixation, a similar posture could be maintained by the same holding fixtures and a constant distance between the head and lower body fixtures is maintained. Artifacts caused by the bridge capsule system were not observed on magnetic resonance (MRI) and positron emission tomography (PET) images. The average position differences of the spinal column and the iliac body before and after re-fixation for the same modality were approximately 1.1 mm. The difference between the MRI and PET images was approximately 1.8 mm for the lower body fixture after image registration using fiducial markers. This system would be useful for longitudinal, repeated and multimodal imaging experiments requiring similar animal postures.

  4. The research on detector sensitivity of full-coverage animal PET system

    International Nuclear Information System (INIS)

    In order to improve detector sensitivity of small animal PET system and increase geometry angle coverage rate of detector, a full-coverage animal PET system design is proposed, in which two square detectors are added to the original circular PET scanner's both ends. There is a hole in the middle of each of the two square detectors. To investigate the detector sensitivity performance of the new system, GATE was used to build system model and simulation was performed with three different types of radioactive sources which is point, plane and volume sources. The simulation results demonstrate that the change to the detector structure effectively increase the detector sensitivity, and the number of line of responses (LOR) is doubled more than before which will potentially benefit image reconstruction; meanwhile the simulation results of point and plane radioactive sources show that the proposed full-coverage arrangement of detectors improves the uniformity of sensitivity in the FOV, however the hole on the board detector weakens the improvement of detector sensitivity, especially to the radioactive source which is put on the edge of the FOV. Full-coverage animal PET system as proposed can improve detector sensitivity and image quality. (authors)

  5. Identification of nonlinear systems with unknown time delay based on time-delay neural networks.

    Science.gov (United States)

    Ren, X M; Rad, A B

    2007-09-01

    In this letter, we address the problem of online identification of nonlinear continuous-time systems with unknown time delay based on neural networks (NNs). A novel time-delay NN model with learning algorithm is employed to perform simultaneous system identification and time-delay estimation. The proposed network is an extended version of the time-delay-free dynamical NN. Rigorous stability proof for the identification error is given by means of Lyapunov theory. The simulation studies are provided to demonstrate the performance of the identification algorithm and clarify the theoretical implications. PMID:18220203

  6. Identification of Security Status of Production Logistics System in Coal Mine Based on RS–SVM

    Directory of Open Access Journals (Sweden)

    Wang Jin-Feng

    2013-01-01

    Full Text Available Identification of security status of production logistics system in coal mine is important to analyze the weak links and improve the safety level of coal mine safety production. Combining with the particularity and complexity of production logistics system of coal mine, this paper established an identification model of safe state by using the rough set theory (RS and support vector machine method (SVM. It selected key safety index with the theory of rough set, and used SVM to identify safety status. It showed that identification model of security state based on RS-SVM simplified the computational complexity and improved the identification accuracy of security state.

  7. Study on vital area identification for physical protection system

    International Nuclear Information System (INIS)

    Physical protection (PP), which is required for the security of nuclear facilities and has recently caught the attention of the international community, is a mandatory design requirement for innovative nuclear energy systems. The International Atomic Energy Agency (IAEA) to this end has recommended its member countries to implement stronger physical protection measures when it amended the previous publication and released INFCIRC/225/Rev.5 in 2011; the core of the recommendation was the identification of vital areas (VAs). As the Korea Atomic Energy Research Institute (KAERI) has been developing an SFR fuel cycle with pyro processing as part of its nuclear energy R and D since the late 1990s, the concept of VAs should be incorporated at the process development and design stage in order to minimize later changes in facility design and prevent subsequent economic loss. This paper discusses the definition and process to identify VAs for the purpose of establishing physical protection systems (PPSs) for the relevant facilities in the future

  8. An Automated System for Garment Texture Design Class Identification

    Directory of Open Access Journals (Sweden)

    Emon Kumar Dey

    2015-09-01

    Full Text Available Automatic identification of garment design class might play an important role in the garments and fashion industry. To achieve this, essential initial works are found in the literature. For example, construction of a garment database, automatic segmentation of garments from real life images, categorizing them into the type of garments such as shirts, jackets, tops, skirts, etc. It is now essential to find a system such that it will be possible to identify the particular design (printed, striped or single color of garment product for an automated system to recommend the garment trends. In this paper, we have focused on this specific issue and thus propose two new descriptors namely Completed CENTRIST (cCENTRIST and Ternary CENTRIST (tCENTRIST. To test these descriptors, we used two different publically available databases. The experimental results of these databases demonstrate that both cCENTRIST and tCENTRIST achieve nearly about 3% more accuracy than the existing state-of-the art methods.

  9. Barcoding the largest animals on Earth: ongoing challenges and molecular solutions in the taxonomic identification of ancient cetaceans.

    Science.gov (United States)

    Speller, Camilla; van den Hurk, Youri; Charpentier, Anne; Rodrigues, Ana; Gardeisen, Armelle; Wilkens, Barbara; McGrath, Krista; Rowsell, Keri; Spindler, Luke; Collins, Matthew; Hofreiter, Michael

    2016-09-01

    Over the last few centuries, many cetacean species have witnessed dramatic global declines due to industrial overharvesting and other anthropogenic influences, and thus are key targets for conservation. Whale bones recovered from archaeological and palaeontological contexts can provide essential baseline information on the past geographical distribution and abundance of species required for developing informed conservation policies. Here we review the challenges with identifying whale bones through traditional anatomical methods, as well as the opportunities provided by new molecular analyses. Through a case study focused on the North Sea, we demonstrate how the utility of this (pre)historic data is currently limited by a lack of accurate taxonomic information for the majority of ancient cetacean remains. We then discuss current opportunities presented by molecular identification methods such as DNA barcoding and collagen peptide mass fingerprinting (zooarchaeology by mass spectrometry), and highlight the importance of molecular identifications in assessing ancient species' distributions through a case study focused on the Mediterranean. We conclude by considering high-throughput molecular approaches such as hybridization capture followed by next-generation sequencing as cost-effective approaches for enhancing the ecological informativeness of these ancient sample sets.This article is part of the themed issue 'From DNA barcodes to biomes'. PMID:27481784

  10. Development and validation of a treatment planning system for small animal radiotherapy: SmART-Plan

    International Nuclear Information System (INIS)

    Background and purpose: Image-guided equipment for precision irradiation of small animals for pre-clinical radiotherapy research became recently available. To enable downscaled radiotherapy studies that can be translated into human radiotherapy knowledge, a treatment planning system for pre-clinical studies is required. Material and methods: A dedicated treatment planning system (SmART-Plan) for small animal radiotherapy studies was developed. It is based on Monte Carlo simulation of particle transport in an animal. The voxel geometry is derived from the onboard cone beam CT imaging panel. SmART-Plan was validated using radiochromic film (RCF) dosimetry in various phantoms: uniform, multislab and a realistic plasticized mouse geometry. Results: Good agreement was obtained between SmART-Plan dose calculations and RCF dose measurements in all phantoms. For various delivered plans agreement was obtained within 10% for the majority of the targeted dose region, with larger differences between 10% and 20% near the penumbra regions and for the smallest 1 mm collimator. Absolute depth and lateral dose distributions showed better agreement for 5 and 15-mm collimators than for a 1-mm collimator, indicating that accurate dose prediction for the smallest field sizes is difficult. Conclusion: SmART-Plan offers a useful dose calculation tool for pre-clinical small animal irradiation studies

  11. Optical methods and integrated systems for brain imaging in awake, untethered animals

    Science.gov (United States)

    Murari, Kartikeya

    Imaging is a powerful tool for biomedical research offering non-contact and minimally or non-invasive means of investigating at multiple scales---from single molecules to large populations of cells. Imaging in awake, behaving animals is an emerging field that offers the additional advantage of being able to study physiological processes and structures in a more natural state than what is possible in tissue slices or even in anesthetized animals. To date, most imaging in awake animals has used optical fiber bundles or electrical cables to transfer signals to traditional imaging-system components. However, the fibers or cables tether the animal and greatly limit the kind and duration of animal behavior that can be studied using imaging methods. This work involves three distinct yet related approaches to fulfill the goal of imaging in unanesthetized, unrestrained animals---optical techniques for functional and structural imaging, development of novel photodetectors and the design of miniaturized imaging systems. I hypothesized that the flow within vessels might act as a contrast-enhancing agent and improve the visualization of vascular architecture using laser speckle imaging. When imaging rodent cerebral vasculature I saw a two to four fold increase in the contrast-to-noise ratios and was able to visualize 10--30% more vascular features over reflectance techniques. I designed a complementary metal oxide semiconductor (CMOS) photodetector array that was comparable in sensitivity and noise performance to cooled CCD sensors, able to image fluorescence from a single cell, while running at faster frame rates. Next, I designed an imaging system weighing under 6 grams and occupying less than 4 cm3. The system incorporated multispectral illumination, adjustable focusing optics and the high-sensitivity CMOS imager. I was able to implement a variety of optical modalities with the system and performed reflectance, fluorescence, spectroscopic and laser speckle imaging with my

  12. Identification of hidden failures in process control systems through function-oriented system analysis

    Energy Technology Data Exchange (ETDEWEB)

    Jalashgar, A.

    1997-05-01

    The main subject of this thesis is to identify hidden failures in process control systems by developing and using a function-oriented system analysis method. Qualitative failure analysis and the characteristics of the classical failure analysis methods and function-oriented modelling methods are covered. The general limitations of the methods in connection with the identification and representation of hidden failures are discussed. The discussion has led to the justification of developing and using a function-oriented system analysis method to identify and represent the capabilities of the system components, which realize different sets of functions in connection with different sets of goals that the system must achieve. A terminology is introduced to define the basic aspects of technical systems including goals, functions, capabilities and physical structure. A function-oriented system analysis method using this terminology and a tailored combination of the two function-oriented modelling approaches, is also introduced. It is then explained how the method can be applied in the identification and representation of hidden failures. The building blocks of a knowledge-oriented system to perform the diagnosis on the basis of the developed method are equally described. A prototype of the knowledge-based system is developed to demonstrate the applicability of the function-oriented system analysis method and the knowledge-based system. The prototype is implemented within the object-oriented software environment G2. (au) 65 ills., 32 refs.

  13. Optical Verification Laboratory Demonstration System for High Security Identification Cards

    Science.gov (United States)

    Javidi, Bahram

    1997-01-01

    Document fraud including unauthorized duplication of identification cards and credit cards is a serious problem facing the government, banks, businesses, and consumers. In addition, counterfeit products such as computer chips, and compact discs, are arriving on our shores in great numbers. With the rapid advances in computers, CCD technology, image processing hardware and software, printers, scanners, and copiers, it is becoming increasingly easy to reproduce pictures, logos, symbols, paper currency, or patterns. These problems have stimulated an interest in research, development and publications in security technology. Some ID cards, credit cards and passports currently use holograms as a security measure to thwart copying. The holograms are inspected by the human eye. In theory, the hologram cannot be reproduced by an unauthorized person using commercially-available optical components; in practice, however, technology has advanced to the point where the holographic image can be acquired from a credit card-photographed or captured with by a CCD camera-and a new hologram synthesized using commercially-available optical components or hologram-producing equipment. Therefore, a pattern that can be read by a conventional light source and a CCD camera can be reproduced. An optical security and anti-copying device that provides significant security improvements over existing security technology was demonstrated. The system can be applied for security verification of credit cards, passports, and other IDs so that they cannot easily be reproduced. We have used a new scheme of complex phase/amplitude patterns that cannot be seen and cannot be copied by an intensity-sensitive detector such as a CCD camera. A random phase mask is bonded to a primary identification pattern which could also be phase encoded. The pattern could be a fingerprint, a picture of a face, or a signature. The proposed optical processing device is designed to identify both the random phase mask and the

  14. System identification and the modeling of sailing yachts

    Science.gov (United States)

    Legursky, Katrina

    This research represents an exploration of sailing yacht dynamics with full-scale sailing motion data, physics-based models, and system identification techniques. The goal is to provide a method of obtaining and validating suitable physics-based dynamics models for use in control system design on autonomous sailing platforms, which have the capacity to serve as mobile, long range, high endurance autonomous ocean sensing platforms. The primary contributions of this study to the state-of-the-art are the formulation of a five degree-of-freedom (DOF) linear multi-input multi-output (MIMO) state space model of sailing yacht dynamics, the process for identification of this model from full-scale data, a description of the maneuvers performed during on-water tests, and an analysis method to validate estimated models. The techniques and results described herein can be directly applied to and tested on existing autonomous sailing platforms. A full-scale experiment on a 23ft monohull sailing yacht is developed to collect motion data for physics-based model identification. Measurements include 3 axes of accelerations, velocities, angular rates, and attitude angles in addition to apparent wind speed and direction. The sailing yacht herein is treated as a dynamic system with two control inputs, the rudder angle, deltaR, and the mainsail angle, delta B, which are also measured. Over 20 hours of full scale sailing motion data is collected, representing three sail configurations corresponding to a range of wind speeds: the Full Main and Genoa (abbrev. Genoa) for lower wind speeds, the Full Main and Jib (abbrev. Jib) for mid-range wind speeds, and the Reefed Main and Jib (abbrev. Reef) for the highest wind speeds. The data also covers true wind angles from upwind through a beam reach. A physics-based non-linear model to describe sailing yacht motion is outlined, including descriptions of methods to model the aerodynamics and hydrodynamics of a sailing yacht in surge, sway, roll, and

  15. Identification of a System Dynamics of a High Incidence Research Model

    OpenAIRE

    Jones, G.N.; S. A. Billings

    1990-01-01

    The application of orthogonal nonlinear multivariable identification techniques to model the flight dynamics of a High Incidence Research Model is presented. The system model derived is then shown to be a valid representation of the true system dynamics.

  16. Global positioning system and associated technologies in animal behaviour and ecological research

    Science.gov (United States)

    Tomkiewicz, Stanley M.; Fuller, Mark R.; Kie, John G.; Bates, Kirk K.

    2010-01-01

    Biologists can equip animals with global positioning system (GPS) technology to obtain accurate (less than or equal to 30 m) locations that can be combined with sensor data to study animal behaviour and ecology. We provide the background of GPS techniques that have been used to gather data for wildlife studies. We review how GPS has been integrated into functional systems with data storage, data transfer, power supplies, packaging and sensor technologies to collect temperature, activity, proximity and mortality data from terrestrial species and birds. GPS 'rapid fixing' technologies combined with sensors provide location, dive frequency and duration profiles, and underwater acoustic information for the study of marine species. We examine how these rapid fixing technologies may be applied to terrestrial and avian applications. We discuss positional data quality and the capability for high-frequency sampling associated with GPS locations. We present alternatives for storing and retrieving data by using dataloggers (biologging), radio-frequency download systems (e.g. very high frequency, spread spectrum), integration of GPS with other satellite systems (e.g. Argos, Globalstar) and potential new data recovery technologies (e.g. network nodes). GPS is one component among many rapidly evolving technologies. Therefore, we recommend that users and suppliers interact to ensure the availability of appropriate equipment to meet animal research objectives.

  17. Topics in dynamic positioning : System identification, GNSS and MRU lever arm estimation, and hybrid integral action

    OpenAIRE

    Tutturen, Svenn Are

    2014-01-01

    This thesis consists of three main parts. The first part of the master thesis looks at the identification of thruster dynamics and low speed ship dynamics. The relevant parameters identified are time constants and time delays in the system. Simple step tests are used for the identification. Different models for identification are suggested, both for uncoupled surge, sway, and yaw dynamics. Other test results, such as agility plots, DP 4 corner tests, and pure DP tests (stationkeeping) are rep...

  18. Comparison of an Automated System with Conventional Identification and Antimicrobial Susceptibility Testing

    OpenAIRE

    Shalini Duggal; Rajni Gaind; Neha Tandon; Manorama Deb; Tulsi Das Chugh

    2012-01-01

    The present study was designed to compare a fully automated identification/antibiotic susceptibility testing (AST) system BD Phoenix (BD) for its efficacy in rapid and accurate identification and AST with conventional manual methods and to determine if the errors reported in AST, such as the (very major errors) VME (false susceptibility), (major errors) ME (false resistance), and (minor errors) MiE (intermediate category interpretation) were within the range certified by FDA. Identification a...

  19. Topics in dynamic positioning: System identification, GNSS and MRU lever arm estimation, and hybrid integral action

    OpenAIRE

    Tutturen, Svenn Are

    2014-01-01

    This thesis consists of three main parts. The first part of the master thesis looks at the identification of thruster dynamics and low speed ship dynamics. The relevant parameters identified are time constants and time delays in the system. Simple step tests are used for the identification. Different models for identification are suggested, both for uncoupled surge, sway, and yaw dynamics. Other test results, such as agility plots, DP 4 corner tests, and pure DP tests (stationkeeping) are rep...

  20. Information-theoretic analysis of identification systems in large-scale databases

    OpenAIRE

    Farhadzadeh, Farzad

    2014-01-01

    This thesis is concerned with the theory and applications of an identification problem that arises in various multimedia management and security applications. In many of theese applications, data under analysis might be severely distorted. Consequently, an important issue of content identification systems is their ability to deal with distorted data. To address this issue, we introduce a new identification setup by using a fixed maximum list size decoder. In order to solve search and memory c...

  1. Optimization and evaluation of Flexicult(®) Vet for detection, identification and antimicrobial susceptibility testing of bacterial uropathogens in small animal veterinary practice

    DEFF Research Database (Denmark)

    Guardabassi, Luca; Hedberg, Sandra; Jessen, Lisbeth Rem;

    2015-01-01

    testing of E. coli, Flexicult Vet B (commercial name Flexicult(®) Vet) is a time- and cost-effective point-of-care test to guide antimicrobial choice and facilitate implementation of antimicrobial use guidelines for treatment of UTIs in small animals, provided that clinical staff is adequately trained to......BACKGROUND: Urinary tract infection (UTI) is a common reason for antimicrobial prescription in dogs and cats. The objective of this study was to optimize and evaluate a culture-based point-of-care test for detection, identification and antimicrobial susceptibility testing of bacterial uro...... and susceptibility testing. Subsequently, the test was modified by inclusion of an oxacillin-containing compartment for detection of methicillin-resistant staphylococci. The performance of the modified product (Flexicult Vet B) for susceptibility testing was evaluated in vitro using a collection of...

  2. Performance Evaluation of a Small-Animal PET/CT System

    OpenAIRE

    Dahle, Tordis Johnsen

    2014-01-01

    This master project is the first vendor-independent performance evaluation of the new nanoScan PET/CT system at the University of Bergen. A comprehensive performance evaluation of a novel scanner is very important, particularly when quantitative assessments of images are required. The nanoScan PET/CT system is a fully integrated small-animal PET/CT system. An abbreviated performance evaluation of the CT subsystem was done, which included a Hounsfield quality check, a comparison of reconstr...

  3. Component system identification and state-space model synthesis

    Science.gov (United States)

    Sjövall, Per; Abrahamsson, Thomas

    2007-10-01

    A scheme for synthesis of subsystem state-space models to be used for analysis of dynamic behaviour of built-up structures is presented. Using measurements on each component, subsystem models are identified adopting contemporary system identification methods. The subsystem state-space models are transformed into a coupling form, at which kinematic constraints and equilibrium conditions for the interfaces are introduced. The procedure is applied to a plane frame structure, which is built up of two components. It is found that the non-trivial model order determination constitutes a crucial step in the process. If the model order is incorrect at subsystem level, the synthesized model may radically fail to describe the properties of the built-up structure. It is also found that the identified subsystem models need to satisfy certain physically motivated constraints, e.g. reciprocity and passivity. Different approaches and methods to aid the model order determination and the estimation of physically consistent state-space models at subsystem level are discussed.

  4. Systems engineering identification and control of mixed waste technology development

    Energy Technology Data Exchange (ETDEWEB)

    Beitel, G.A.

    1997-08-01

    The Department of Energy (DOE) established the Mixed Waste Characterization, Treatment, and Disposal Focus Area (MWFA) to develop technologies required to meet the Department`s commitments for treatment of mixed low-level and transuranic wastes. Waste treatment includes all necessary steps from generation through disposal. Systems engineering was employed to reduce programmatic risk, that is, risk of failure to meet technical commitments within cost and schedule. Customer needs (technology deficiencies) are identified from Site Treatment Plans, Consent Orders, ten year plans, Site Technical Coordinating Groups, Stakeholders, and Site Visits. The Technical Baseline, a prioritized list of technology deficiencies, forms the basis for determining which technology development activities will be supported by the MWFA. Technology Development Requirements Documents are prepared for each technology selected for development. After technologies have been successfully developed and demonstrated, they are documented in a Technology Performance Report. The Technology Performance Reports are available to any of the customers or potential users of the technology, thus closing the loop between problem identification and product development. This systematic approach to technology development and its effectiveness after 3 years is discussed in this paper.

  5. Split-aloha algorithm for radio frequency identification system

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    Anti-Collision algorithm is one of the most important components of radio frequency identification (RFID) technology, which possesses a key position in the performance of the whole system. ALOHA algorithm is one of the most popular methods to solve the collision problem because of its efficiency and practicability. The grouping method has been developed for enhancing the performance of conventional ALOHA when there are thousands of tags. However, the existing grouping method has limitations in applications due to its rigorous requirements for the estimation of the number of backlog tags or the admirable characteristics of the tags' ID number. Working on the improvement of the grouping methods, we proposed an algorithm named split-ALOHA with a novel grouping method that split tags as a binary tree. The novel grouping method makes it more practicable than the existing grouping methods due to the simplified requirements for tags. Simulations of the proposed algorithm show the superior performance of a linearly increasing of the number of consumed time slots while the number of tags increases. The algorithm performance analysis between split-ALOHA and ALOHA algorithms with other grouping methods has been implemented in a proper way.

  6. Systems engineering identification and control of mixed waste technology development

    International Nuclear Information System (INIS)

    The Department of Energy (DOE) established the Mixed Waste Characterization, Treatment, and Disposal Focus Area (MWFA) to develop technologies required to meet the Department's commitments for treatment of mixed low-level and transuranic wastes. Waste treatment includes all necessary steps from generation through disposal. Systems engineering was employed to reduce programmatic risk, that is, risk of failure to meet technical commitments within cost and schedule. Customer needs (technology deficiencies) are identified from Site Treatment Plans, Consent Orders, ten year plans, Site Technical Coordinating Groups, Stakeholders, and Site Visits. The Technical Baseline, a prioritized list of technology deficiencies, forms the basis for determining which technology development activities will be supported by the MWFA. Technology Development Requirements Documents are prepared for each technology selected for development. After technologies have been successfully developed and demonstrated, they are documented in a Technology Performance Report. The Technology Performance Reports are available to any of the customers or potential users of the technology, thus closing the loop between problem identification and product development. This systematic approach to technology development and its effectiveness after 3 years is discussed in this paper

  7. The Evolution of Animal Communication Systems: Questions of Function Examined through Simulation

    OpenAIRE

    Noble, J.

    1998-01-01

    Simulated evolution is used as a tool for investigating the selective pressures that have influenced the design of animal signalling systems. The biological literature on communication is first reviewed: central concepts such as the handicap principle and the view of signalling as manipulation are discussed. The equation of “biological function” with “adaptive value” is then defended, along with a workable definition of communication. Evolutionary simulation models are advocated as a way of t...

  8. A Fully Implanted Drug Delivery System for Peripheral Nerve Blocks in Behaving Animals

    OpenAIRE

    Pohlmeyer, Eric A; Jordon, Luke R.; Kim, Peter; Miller, Lee E.

    2009-01-01

    Inhibiting peripheral nerve function can be useful for many studies of the nervous system or motor control. Accomplishing this in a temporary fashion in animal models by using peripheral nerve blocks permits studies of the immediate effects of the loss, and/or any resulting short-term changes and adaptations in behavior or motor control, while avoiding the complications commonly associated with permanent lesions, such as sores or self-mutilation. We have developed a method of quickly and repe...

  9. Environmental and Public Health Issues of Animal Food Products Delivery System in Imo State, Nigeria

    OpenAIRE

    Opara Maxwell Nwachukwu; Okorondu Ugochukwu Victor; Okoli Ifeanyi Charles; Okoli Chidi Grace

    2006-01-01

    Information on livestock movement, animal food products processing facilities, meat inspection methods, official meat inspection records and distribution and marketing systems for processed products in Imo state, Nigeria needed for policy development interventions in the sector are not fully understood. The primary data generated with the aid of personal interviews, field observations and secondary data obtained from records accumulated by the department of veterinary services Imo state from ...

  10. Quantitative tools for comparing animal communication systems: information theory applied to bottlenose dolphin whistle repertoires.

    Science.gov (United States)

    McCOWAN; Hanser; Doyle

    1999-02-01

    Comparative analysis of nonhuman animal communication systems and their complexity, particularly in comparison to human language, has been generally hampered by both a lack of sufficiently extensive data sets and appropriate analytic tools. Information theory measures provide an important quantitative tool for examining and comparing communication systems across species. In this paper we use the original application of information theory, that of statistical examination of a communication system's structure and organization. As an example of the utility of information theory to the analysis of animal communication systems, we applied a series of information theory statistics to a statistically categorized set of bottlenose dolphin Tursiops truncatus, whistle vocalizations. First, we use the first-order entropic relation in a Zipf-type diagram (Zipf 1949 Human Behavior and the Principle of Least Effort) to illustrate the application of temporal statistics as comparative indicators of repertoire complexity, and as possible predictive indicators of acquisition/learning in animal vocal repertoires. Second, we illustrate the need for more extensive temporal data sets when examining the higher entropic orders, indicative of higher levels of internal informational structure, of such vocalizations, which could begin to allow the statistical reconstruction of repertoire organization. Third, we propose using 'communication capacity' as a measure of the degree of temporal structure and complexity of statistical correlation, represented by the values of entropic order, as an objective tool for interspecies comparison of communication complexity. In doing so, we introduce a new comparative measure, the slope of Shannon entropies, and illustrate how it potentially can be used to compare the organizational complexity of vocal repertoires across a diversity of species. Finally, we illustrate the nature and predictive application of these higher-order entropies using a preliminary

  11. Information processes in visual and object buffers of scene understanding system for reliable target detection, separation from background, and identification

    Science.gov (United States)

    Kuvich, Gary

    2006-05-01

    Modern target recognition systems suffer from the lack of human-like abilities to understand the visual scene, detect, unambiguously identify and recognize objects. As result, the target recognition systems become dysfunctional if target doesn't demonstrate remarkably distinctive and contrast features that allow for unambiguous separation from background and identification upon such features. This is somewhat similar to visual systems of primitive animals like frogs, which can separate and recognize only moving objects. However, human vision unambiguously separates any object from its background. Human vision combines a rough but wide peripheral, and narrow but precise foveal systems with visual intelligence that utilize both scene and object contexts and resolve ambiguity and uncertainty in the visual information. Perceptual grouping is one of the most important processes in human vision, and it binds visual information into meaningful patterns and structures. Unlike the traditional computer vision models, biologically-inspired Network-Symbolic models convert image information into an "understandable" Network-Symbolic format, which is similar to relational knowledge models. The equivalent of interaction between peripheral and foveal systems in the network-symbolic system is achieved via interaction between Visual and Object Buffers and the top-level system of Visual Intelligence. This interaction provides recursive rough context identification of regions of interest in the visual scene and their analysis in the object buffer for precise and unambiguous separation of the object from background/clutter with following recognition of the target.

  12. Analysis and application of minimum variance discrete time system identification

    Science.gov (United States)

    Kotob, S.; Kaufman, H.

    1976-01-01

    An on-line minimum variance parameter identifier was developed which embodies both accuracy and computational efficiency. The new formulation resulted in a linear estimation problem with both additive and multiplicative noise. The resulting filter is shown to utilize both the covariance of the parameter vector itself and the covariance of the error in identification. It is proven that the identification filter is mean square covergent and mean square consistent. The MV parameter identification scheme is then used to construct a stable state and parameter estimation algorithm.

  13. Environmental and Public Health Issues of Animal Food Products Delivery System in Imo State, Nigeria

    Directory of Open Access Journals (Sweden)

    Opara Maxwell Nwachukwu

    2006-05-01

    Full Text Available Information on livestock movement, animal food products processing facilities, meat inspection methods, official meat inspection records and distribution and marketing systems for processed products in Imo state, Nigeria needed for policy development interventions in the sector are not fully understood. The primary data generated with the aid of personal interviews, field observations and secondary data obtained from records accumulated by the department of veterinary services Imo state from 2001 to 2004 were used to investigate the environmental and public health issues of animal food products delivery system in state. Majority of trade animals supplied to the state originated from the northern states of the country and were brought in with trucks by road. Only two veterinary control posts served the whole state thus resulting in non-inspection and taxing of a large proportion of trade animals. Official record of trade animals supplied to the state from 2001 to 2004 ranged from 45000 – 144000 for cattle, 23000 – 96000 for goats and 11000 – 72000 for sheep per annum, with supplies increasing steadily across the years. Official slaughter points in the state were principally low-grade quality slaughter premises consisting of a thin concrete slab. Meat handling was very unhygienic with carcasses dressed beside refuse heaps of over 2 years standing. Carcasses were dragged on the ground and transported in taxi boots and open trucks. Meat inspection at these points was not thorough because of stiff resistance of butchers to carcass condemnation. Official meat inspection records for the state from 2001 to 2004 revealed that overall totals of 159,000 cattle, 101,000 goats and 67,000 sheep were slaughtered. This accounted for about 56, 57 and 57% shortfall of cattle, goat and sheep respectively supplied to the state and represents the volume of un-inspected animals during the study period. Fascioliasis and tuberculosis were the most common

  14. The Global Livestock Impact Mapping System (GLIMS as a tool for animal health applications

    Directory of Open Access Journals (Sweden)

    Gianluca Franceschini

    2009-12-01

    Full Text Available Recent concerns expressed by various national and international organisations about global livestock sector development and its consequences on the environment and on human and animal health suggest the need to reinforce efforts to monitor and collect more accurate and detailed statistics on livestock. Modern technologies for the organisation, analysis, dissemination and presentation of data and results enhance the contribution that these statistics can make towards the planning of efficient and sustainable animal production and health interventions. To this end, the Food and Agriculture Organization Animal Production and Health Division (FAO-AGA has developed the Global Livestock Impact Mapping System (GLIMS. GLIMS provides a repository for sub-national data pertaining to the livestock sector and produces and distributes, through various channels and formats, a number of global public products, namely: the Gridded Livestock of the World (GLW, mapping the spatial distribution of the main livestock species, the Global Livestock Production and Health Atlas (GLiPHA, disseminating sub-national geo-referenced statistics, and the AGA Livestock Sector Briefs, which are concise national reports on the livestock sector. These products have a variety of applications. The authors focus attention on applications in the field of animal health, both to increase knowledge of the occurrence of livestock diseases and to assess their impact.

  15. Countering the livestock-targeted bioterrorism threat and responding with an animal health safeguarding system.

    Science.gov (United States)

    Yeh, J-Y; Lee, J-H; Park, J-Y; Cho, Y S; Cho, I-S

    2013-08-01

    Attacks against livestock and poultry using biological agents constitute a subtype of agroterrorism. These attacks are defined as the intentional introduction of an animal infectious disease to strike fear in people, damage a nation's economy and/or threaten social stability. Livestock bioterrorism is considered attractive to terrorists because biological agents for use against livestock or poultry are more readily available and difficult to monitor than biological agents for use against humans. In addition, an attack on animal husbandry can have enormous economic consequences, even without human casualties. Animal husbandry is vulnerable to livestock-targeted bioterrorism because it is nearly impossible to secure all livestock animals, and compared with humans, livestock are less well-guarded targets. Furthermore, anti-livestock biological weapons are relatively easy to employ, and a significant effect can be produced with only a small amount of infectious material. The livestock sector is presently very vulnerable to bioterrorism as a result of large-scale husbandry methods and weaknesses in the systems used to detect disease outbreaks, which could aggravate the consequences of livestock-targeted bioterrorism. Thus, terrorism against livestock and poultry cannot be thought of as either a 'low-probability' or 'low-consequence' incident. This review provides an overview of methods to prevent livestock-targeted bioterrorism and respond to terrorism involving the deliberate introduction of a pathogen-targeting livestock and poultry. PMID:22726305

  16. An Automatic Weighting System for Wild Animals Based in an Artificial Neural Network: How to Weigh Wild Animals without Causing Stress

    Directory of Open Access Journals (Sweden)

    Javier Bustamante

    2013-02-01

    Full Text Available This paper proposes a novel and autonomous weighing system for wild animals. It allows evaluating changes in the body weight of animals in their natural environment without causing stress. The proposed system comprises a smart scale designed to estimate individual body weights and their temporal evolution in a bird colony. The system is based on computational intelligence, and offers valuable large amount of data to evaluate the relationship between long-term changes in the behavior of individuals and global change. The real deployment of this system has been for monitoring a breeding colony of lesser kestrels (Falco naumanni in southern Spain. The results show that it is possible to monitor individual weight changes during the breeding season and to compare the weight evolution in males and females.

  17. Open-source medical devices (OSMD) design of a small animal radiotherapy system

    International Nuclear Information System (INIS)

    Open-Source Medical Devices (OSMD) was initiated with the goal of facilitating medical research by developing medical technologies including both hardware and software on an open-source platform. Our first project was to develop an integrated imaging and radiotherapy device for small animals that includes computed tomography (CT), positron emission tomography (PET) and radiation therapy (RT) modalities for which technical specifications were defined in the first OSMD conference held in Madison, Wisconsin, USA in December 2011. This paper specifically focuses on the development of a small animal RT (micro-RT) system by designing a binary micro multileaf collimator (bmMLC) and a small animal treatment planning system (SATPS) to enable intensity modulated RT (IMRT). Both hardware and software projects are currently under development and their current progresses are described. After the development, both bmMLC and TPS will be validated and commissioned for a micro-RT system. Both hardware design and software development will be open-sourced after completion.

  18. Design and implementation of a marine animal alert system to support Marine Renewable Energy

    Energy Technology Data Exchange (ETDEWEB)

    Deng, Zhiqun; Carlson, Thomas J.; Fu, Tao; Ren, Huiying; Martinez, Jayson J.; Myers, Joshua R.; Matzner, Shari; Choi, Eric Y.; Copping, Andrea E.

    2013-08-08

    Power extracted from fast moving tidal currents has been identified as a potential commercial-scale source of renewable energy. Device developers and utilities are pursuing deployment of prototype tidal turbines to assess technology viability, site feasibility, and environmental interactions. Deployment of prototype turbines requires permits from a range of regulatory authorities. Ensuring the safety of marine animals, particularly those under protection of the Endangered Species Act of 1973 (ESA) and the Marine Mammal Protection Act of 1972 has emerged as a key regulatory challenge for initial MHK deployments. The greatest perceived risk to marine animals is from strike by the rotating blades of tidal turbines. Development of the marine mammal alert system (MAAS) was undertaken to support monitoring and mitigation requirements for tidal turbine deployments. The prototype system development focused on Southern Resident killer whales (SRKW), an endangered population of killer whales that frequents Puget Sound and is intermittently present in the part of the sound where deployment of prototype tidal turbines is being considered. Passive acoustics were selected as the primary means because of the vocal nature of these animals. The MAAS passive acoustic system consists of two-stage process involving the use of an energy detector and a spectrogram-based classifier to distinguish between SKRW’s calls and noise. A prototype consisting of two 2D symmetrical star arrays separated by 20 m center to center was built and evaluated in the waters of Sequim Bay using whale call playback.

  19. Boundary Work: Engaging Knowledge Systems in Co-management of Feral Animals on Indigenous Lands

    Directory of Open Access Journals (Sweden)

    Tabatha J. Wallington

    2012-06-01

    Full Text Available The integration and use of Indigenous knowledge to inform contemporary environmental policy decisions and management solutions is a growing global phenomenon. However, there is little critical inquiry about how the interactions between scientific and Indigenous knowledge (IK systems can be effectively negotiated for the joint management of social-ecological systems. Such issues are urgent on Indigenous lands where co-management efforts respond to pressing conservation agendas and where the contribution of scientific knowledge and IK is required to better understand and manage complex social-ecological systems. We draw on the notion of boundary work to examine how interaction at the boundaries of scientific and IK systems can be managed effectively as a contribution to co-management. The case study of feral animal co-management in Australia's Kakadu National Park illuminates the work required for local co-managers to bridge the divide between scientific and IK systems and to ensure the translation of knowledge for management decisions. Attributes of effective boundary work demonstrated in this case include: meaningful participation in agenda setting and joint knowledge production to enable co-managers to translate available knowledge into joint feral animal programs, Indigenous and non-Indigenous ranger efforts to broker interactions between knowledge systems that are supported by co-governance arrangements to ensure that boundary work remains accountable, and the production of collaboratively built boundary objects (e.g., feral animal impact assessment data that helps to coordinate local action between co-managers. This case study illustrates the contribution of boundary work to local co-manager efforts to translate across knowledge systems and across the knowledge-action divide, even when consensus is difficult to achieve.

  20. Animal models of attention-deficit hyperactivity disorder

    OpenAIRE

    Sagvolden Terje; Russell Vivienne A; Johansen Espen

    2005-01-01

    Abstract Although animals cannot be used to study complex human behaviour such as language, they do have similar basic functions. In fact, human disorders that have animal models are better understood than disorders that do not. ADHD is a heterogeneous disorder. The relatively simple nervous systems of rodent models have enabled identification of neurobiological changes that underlie certain aspects of ADHD behaviour. Several animal models of ADHD suggest that the dopaminergic system is funct...

  1. An automatic identification and monitoring system for coral reef fish

    Science.gov (United States)

    Wilder, Joseph; Tonde, Chetan; Sundar, Ganesh; Huang, Ning; Barinov, Lev; Baxi, Jigesh; Bibby, James; Rapport, Andrew; Pavoni, Edward; Tsang, Serena; Garcia, Eri; Mateo, Felix; Lubansky, Tanya M.; Russell, Gareth J.

    2012-10-01

    To help gauge the health of coral reef ecosystems, we developed a prototype of an underwater camera module to automatically census reef fish populations. Recognition challenges include pose and lighting variations, complicated backgrounds, within-species color variations and within-family similarities among species. An open frame holds two cameras, LED lights, and two `background' panels in an L-shaped configuration. High-resolution cameras send sequences of 300 synchronized image pairs at 10 fps to an on-shore PC. Approximately 200 sequences containing fish were recorded at the New York Aquarium's Glover's Reef exhibit. These contained eight `common' species with 85-672 images, and eight `rare' species with 5-27 images that were grouped into an `unknown/rare' category for classification. Image pre-processing included background modeling and subtraction, and tracking of fish across frames for depth estimation, pose correction, scaling, and disambiguation of overlapping fish. Shape features were obtained from PCA analysis of perimeter points, color features from opponent color histograms, and `banding' features from DCT of vertical projections. Images were classified to species using feedforward neural networks arranged in a three-level hierarchy in which errors remaining after each level are targeted by networks in the level below. Networks were trained and tested on independent image sets. Overall accuracy of species-specific identifications typically exceeded 96% across multiple training runs. A seaworthy version of our system will allow for population censuses with high temporal resolution, and therefore improved statistical power to detect trends. A network of such devices could provide an `early warning system' for coral ecosystem collapse.

  2. Identification of poly(ADP-ribose) polymerase-1 as the OXPHOS-generated ATP sensor of nuclei of animal cells

    International Nuclear Information System (INIS)

    Our results show that in the intact normal animal cell mitochondrial ATP is directly connected to nuclear PARP-1 by way of a specific adenylate kinase enzymatic path. This mechanism is demonstrated in two models: (a) by its inhibition with a specific inhibitor of adenylate kinase, and (b) by disruption of ATP synthesis through uncoupling of OXPHOS. In each instance the de-inhibited PARP-1 is quantitatively determined by enzyme kinetics. The nuclear binding site of PARP-1 is Topo I, and is identified as a critical 'switchpoint' indicating the nuclear element that connects OXPHOS with mRNA synthesis in real time. The mitochondrial-nuclear PARP-1 pathway is not operative in cancer cells

  3. Identification systems and selection criteria for small ruminants among pastoralist communities in northern Kenya: prospects for a breeding programme.

    Science.gov (United States)

    Mbuku, S M; Kosgey, I S; Kahi, A K

    2010-10-01

    Data on animal identification systems and selection criteria for sheep and goats were collected from the Rendille and Gabra communities in northern Kenya. These were then analysed through computation of indices, which represented a weighted average of all rankings of a particular trait or identification system. The three most important records kept were castration (index = 0.224), dates of birth (0.188) and entries into the flock (0.185). Identification was done through ear notching (0.409), branding (0.248), and coat colour of the animals (0.150). Characteristics with index >or=0.200 were considered more important and included big body size (Rendille, 0.260; Gabra, 0.251) and milk yield (Rendille, 0.206) for the buck's dam. Big body size (Rendille, 0.264; Gabra, 0.245) and offspring quality (Rendille, 0.252; Gabra, 0.265) were considered important attributes for the buck's sire. Important qualities for the ram's dam were big body size (Rendille, 0.246; Gabra, 0.216), offspring quality (Rendille, 0.200; Gabra, 0.235), fat deposition (0.233) among the Rendille and drought tolerance (0.246) among the Gabra. For the rams' sire, big body size (Rendille, 0.235; Gabra, 0.233), offspring quality (Rendille, 0.200; Gabra, 0.235) and fat deposition (Rendille, 0.203; Gabra, 0.220) were considered important. The results from this study imply that pedigree and performance recording have been practiced through own intricate knowledge and that pastoralists have deliberate selection criteria. This information is the cornerstone in the establishment of appropriate breeding programmes in the slowly changing pastoral systems. PMID:20419472

  4. Small-animal whole-body imaging using a photoacoustic full ring array system

    Science.gov (United States)

    Xia, Jun; Guo, Zijian; Aguirre, Andres; Zhu, Quing; Wang, Lihong V.

    2011-03-01

    In this report, we present a novel 3D photoacoustic computed tomography (PACT) system for small-animal whole-body imaging. The PACT system, based on a 512-element full-ring transducer array, received photoacoustic signals primarily from a 2-mm-thick slice. The light was generated by a pulse laser, and can either illuminate from the top or be reshaped to illuminate the sample from the side, using a conical lens and an optical condenser. The PACT system was capable of acquiring an in-plane image in 1.6 s; by scanning the sample in the elevational direction, a 3D tomographic image could be constructed. We tested the system by imaging a cylindrical phantom made of human hairs immersed in a scattering medium. The reconstructed image achieved an in-plane resolution of 0.1 mm and an elevational resolution of 1 mm. After deconvolution in the elevational direction, the 3D image was found to match well with the phantom. The system was also used to image a baby mouse in situ; the spinal cord and ribs can be seen easily in the reconstructed image. Our results demonstrate that the PACT system has the potential to be used for fast small-animal whole-body tomographic imaging.

  5. Adaptive lag synchronization and parameters adaptive lag identification of chaotic systems

    Energy Technology Data Exchange (ETDEWEB)

    Xu Yuhua, E-mail: yuhuaxu2004@163.co [College of Information Science and Technology, Donghua University, Shanghai 201620 (China) and Department of Mathematics, Yunyang Teachers' College, Hubei, Shiyan 442000 (China); Zhou Wuneng, E-mail: wnzhou@163.co [College of Information Science and Technology, Donghua University, Shanghai 201620 (China) and Key Laboratory of Wireless Sensor Network and Communication, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050 (China); Fang Jian' an, E-mail: jafang@dhu.edu.c [College of Information Science and Technology, Donghua University, Shanghai 201620 (China); Sun Wen, E-mail: sunwen_2201@163.co [School of Mathematics and Information, Yangtze University, Hubei, Jingzhou 434023 (China)

    2010-07-26

    This Letter investigates the problem of adaptive lag synchronization and parameters adaptive lag identification of chaotic systems. In comparison with those of existing parameters identification schemes, the unknown parameters are identified by adaptive lag laws, and the delay time is also identified in this Letter. Numerical simulations are also given to show the effectiveness of the proposed method.

  6. Adaptive lag synchronization and parameters adaptive lag identification of chaotic systems

    International Nuclear Information System (INIS)

    This Letter investigates the problem of adaptive lag synchronization and parameters adaptive lag identification of chaotic systems. In comparison with those of existing parameters identification schemes, the unknown parameters are identified by adaptive lag laws, and the delay time is also identified in this Letter. Numerical simulations are also given to show the effectiveness of the proposed method.

  7. Underwater electro-optical system for mine identification

    Science.gov (United States)

    Strand, Michael P.

    1995-06-01

    The Electro-Optic Identification (EOID) Sensors project is developing a Laser Visual Iidentification Sensor (LVIS) for identification of proud, partially buried, and moored mines in shallow water/very shallow water. LVIS will be deployed in small diameter underwater vehicles, including unmanned underwater vehicles (UUVs). Since the mission is mine identification, LVIS must: a) deliver high quality images in turbid coastal waters, while b) being compatible with the size and power constraints imposed by the intended deployment platforms. This project is sponsored by the Office of Naval Research, as a part of the AOA Mine Reconnaissance/Hunter program. High quality images which retain target detail and contrast are required for mine identification. LVIS will be designed to produce images of minelike contacts (MLC) of sufficient quality to allow identification while operating in turbid coastal waters from a small diameter UUV. Technology goals for the first generation LVIS are a) identification range up to 40 feet for proud, partially buried, and moored MLCs under coastal water conditions; b) day/night operation from a UUV operating at speeds up to 4 knots; c) power consumption less than 500 watts, with 275 watts being typical; and d) packaged within a 32-inch long portion of a 21-inch diameter vehicle section.

  8. 慢性难治性骨髓炎动物模型制备与鉴定%Preparation and identification of chronic and refractory osteomyelitis animal model

    Institute of Scientific and Technical Information of China (English)

    黄金亮; 唐辉; 范新宇; 徐永清

    2012-01-01

    Objective To discuss the experimental method of preparation and identification of chronic and refractory osteomyelitis animal model. Methods The rabbit's chronic osteomyelitis model was prepared based on literature method. After the model was determined, the model animals received debridement and sensitive antibiotic treatment for 2 w. Clinical and X - ray manifestation were observed. Myeloid tissue bacterial culture and histological observation were carried out. At last, based on the histological observation, the establishment of chronic and refractory osteomyelitis model was determined. Results Ten animals had local soft tissue lump,and X - ray film showed local soft tissue swelling shadow,hyperosteogeny and low - density cavity shadow in 20 ones. The results of myeloid tissue bacterial cultures in 25 ones were positive. The histological observation of 21 ones showed chronic inflammatory changes. Conclusion The chronic and refractory osteomyelitis models of twenty one experimental animals are prepared successfully, which verifies that this method can successfully prepare animal models of chronic refractory osteomyelitis with an achievement ratio of 56. 8% .%目的 探讨慢性难治性骨髓炎动物模型制备与鉴定的实验方法.方法 根据文献方法制备兔的慢性骨髓炎模型,模型确定后,给予尽可能彻底的清创及敏感抗生素治疗2 w,再观察临床表现、大体观、X线表现以及行骨髓组织细菌培养、组织学观察,最后以组织学观察为基础,确定慢性难治性骨髓炎模型的建立.结果 10只局部出现软组织肿块,20只动物X线片提示局部软组织肿胀影、骨质增生、低密度空洞影;25只骨髓组织细菌培养阳性,21只组织学观察呈慢性炎症改变.结论 21只实验动物慢性难治性骨髓炎模型制备成功,证实此法可成功制备慢性难治性骨髓炎动物模型,成功率为56.8%.

  9. The development of a hexaplex-conventional PCR for identification of six animal and plant species in foodstuffs.

    Science.gov (United States)

    Safdar, Muhammad; Junejo, Yasmeen

    2016-02-01

    A hexaplex-conventional PCR assay was developed for identification of five meat and one plant species origins in foodstuffs simultaneously. The method merges the use of horse (Equus caballus), soybean (Glycine max), sheep (Ovis aries), poultry (Meleagris meleagris), pork (Sus scrofa), and cow (Bos taurus) specific primers that amplify fragments (horse; 85 bp, soybean; 100 bp, sheep; 119 bp, poultry; 183 bp, pork; 212 bp and cow; 271 bp) of the mitochondrial cyt b, lectin, 12S rRNA, 12S rRNA, ATPase subunit 6 genes and ATPase subunit 8 genes respectively, and a universal 18S rRNA primers that amplifies a 141 bp. Multiplex analysis of the reference food samples showed that detection limit of the hexaplex assay was 0.01% for each species. Taken together, all data indicated that this hexaplex PCR assay was a simple, fast, sensitive, specific, and cost-effective detection method for horse, soybean, sheep, poultry, pork and cow species in foodstuffs. PMID:26304406

  10. 美国重大动物疫病防控应急体系浅析%Insights into the US major animal epidemic emergency management system

    Institute of Scientific and Technical Information of China (English)

    吴胜; 王华; 徐卸古

    2015-01-01

    This paper outlines the major animal epidemic emergency management system in the United States, involving the responsibilities of United States Department of Agriculture (USDA), Department of Homeland Security (DHS), and Department of Health and Human Services ( DHHS ) .Besides the main commanding and coordinating departments, the system also involves procedures in surveillance, early warning, preparation, response and ending in case of serious animal emergency.We have also summarized and analyzed the characteristics of the American response mode, such as net-worked laboratories, special corps,budgets and national animal identification systems.%该文简要介绍了美国重大动物疫情防控应急体系中,美国农业部、国土安全部、卫生和公众服务部等主要指挥协调机构及其职责,以及监测、预警、准备、反应、结束等应急防控流程,并对其技术队伍保障、经费物资保障、联合实验室、动物标识追溯系统等主要做法进行了初步分析。

  11. The Influence of hygiene monitoring systems on the harmlessness of food of animal origin (meat, milk)

    OpenAIRE

    Svobodová, Jana

    2014-01-01

    This thesis deals with the influence of hygiene monitoring systems on health safety of food of animal origin (meat, milk). It mainly focuses on the characteristics of selected hygiene control systems of food production supervised by Regional Veterinary Administration in České Budějovice in years 2007 to 2011. For our purposes an overview of selected data concerning the safety of meat and milk was set. Based on the results of the inspection led by Regional Veterinary Administration during the ...

  12. Ultrahigh-speed ultrahigh-resolution adaptive optics: optical coherence tomography system for in-vivo small animal retinal imaging

    Science.gov (United States)

    Jian, Yifan; Xu, Jing; Zawadzki, Robert J.; Sarunic, Marinko V.

    2013-03-01

    Small animal models of human retinal diseases are a critical component of vision research. In this report, we present an ultrahigh-resolution ultrahigh-speed adaptive optics optical coherence tomography (AO-OCT) system for small animal retinal imaging (mouse, fish, etc.). We adapted our imaging system to different types of small animals in accordance with the optical properties of their eyes. Results of AO-OCT images of small animal retinas acquired with AO correction are presented. Cellular structures including nerve fiber bundles, capillary networks and detailed double-cone photoreceptors are visualized.

  13. [Experimental animal studies on the topical and systemic activity of prednisolone-17-ethylcarbonate-21-propionate].

    Science.gov (United States)

    Alpermann, H G; Sandow, J; Vogel, H G

    1982-01-01

    Prednisolone-17-ethylcarbonate-21-propionate (PrEP, Hoe 777) was tested for antiinflammatory activity in various animal models by topical and systemic administration. In those models being indicative of topical efficacy, the potency of PrEP was the same as that of desoximetasone. However, systemic effects after topical administration of PrEP in shaved skin of the dorsum of rats were relatively weak compared with the reference compound. Moreover, there were less systemic glucocorticoid effects after s.c. administration of PrEP than after desoximetasone. Thus, PrEP is obviously a compound with a considerable split of topical and systemic activity, suggesting its testing in man for systemic effects after topical administration. PMID:6981416

  14. [Animal experiment studies on the topical and systemic effectiveness of prednisolone-17-ethylcarbonate-21-propionate].

    Science.gov (United States)

    Alpermann, H G; Sandow, J; Vogel, H G

    1986-01-01

    Prednisolone-17-ethyl carbonate-21-propionate (PrEP, Hoe 777) was tested for antiinflammatory activity in various animal models by topical and systemic administration. In those models being indicative of topical efficacy, the potency of PrEP was the same as that of desoximetasone. However, systemic effects after topical administration of PrEP in shaved skin of the dorsum of rats were relatively weak compared with the reference compound. Moreover, there were less systemic corticoid effects after s.c. administration of PrEP than after desoximetasone. Thus, PrEP is obviously a compound with a considerable split of topical and systemic activity, suggesting its testing in man for systemic effects after topical administration. PMID:3705675

  15. NNSYSID and NNCTRL Tools for system identification and control with neural networks

    DEFF Research Database (Denmark)

    Nørgaard, Magnus; Ravn, Ole; Poulsen, Niels Kjølstad

    2001-01-01

    Two toolsets for use with MATLAB have been developed: the neural network based system identification toolbox (NNSYSID) and the neural network based control system design toolkit (NNCTRL). The NNSYSID toolbox has been designed to assist identification of nonlinear dynamic systems. It contains a...... choose among several designs such as direct inverse control, internal model control, nonlinear feedforward, feedback linearisation, optimal control, gain scheduling based on instantaneous linearisation of neural network models and nonlinear model predictive control. This article gives an overview of the...

  16. System Identification for Nonlinear FOPDT Model with Input-Dependent Dead-Time

    DEFF Research Database (Denmark)

    Sun, Zhen; Yang, Zhenyu

    2011-01-01

    An on-line iterative method of system identification for a kind of nonlinear FOPDT system is proposed in the paper. The considered nonlinear FOPDT model is an extension of the standard FOPDT model by means that its dead time depends on the input signal and the other parameters are time dependent....... In order to identify these parameters in an online manner, the considered system is discretized at first. Then, the nonlinear FOPDT identification problem is formulated as a stochastic Mixed Integer Non-Linear Programming problem, and an identification algorithm is proposed by combining the Branch...... dead time change according to the input can also be reasonable tracked....

  17. Feasibility of small animal cranial irradiation with the microRT system

    International Nuclear Information System (INIS)

    Purpose: To develop and validate methods for small-animal CNS radiotherapy using the microRT system. Materials and Methods: A custom head immobilizer was designed and built to integrate with a pre-existing microRT animal couch. The Delrin couch-immobilizer assembly, compatible with multiple imaging modalities (CT, microCT, microMR, microPET, microSPECT, optical), was first imaged via CT in order to verify the safety and reproducibility of the immobilization method. Once verified, the subject animals were CT-scanned while positioned within the couch-immobilizer assembly for treatment planning purposes. The resultant images were then imported into CERR, an in-house-developed research treatment planning system, and registered to the microRTP treatment planning space using rigid registration. The targeted brain was then contoured and conformal radiotherapy plans were constructed for two separate studies: (1) a whole-brain irradiation comprised of two lateral beams at the 90 degree sign and 270 degree sign microRT treatment positions and (2) a hemispheric (left-brain) irradiation comprised of a single A-P vertex beam at the 0 degree sign microRT treatment position. During treatment, subject animals (n=48) were positioned to the CERR-generated treatment coordinates using the three-axis microRT motor positioning system and were irradiated using a clinical Ir-192 high-dose-rate remote after-loading system. The radiation treatment course consisted of 5 Gy fractions, 3 days per week. 90% of the subjects received a total dose of 30 Gy and 10% received a dose of 60 Gy. Results: Image analysis verified the safety and reproducibility of the immobilizer. CT scans generated from repeated reloading and repositioning of the same subject animal in the couch-immobilizer assembly were fused to a baseline CT. The resultant analysis revealed a 0.09 mm average, center-of-mass translocation and negligible volumetric error in the contoured, murine brain. The experimental use of the head

  18. Application of microbial identification system (Sherlock MIS) for identification of forest litter bacterial strains - preliminary results

    Czech Academy of Sciences Publication Activity Database

    Jirout, Jiří; Petrásek, Jiří; Elhottová, Dana; Krištůfek, Václav; Nováková, Alena; Rusek, Josef

    České Budějovice : Institute of Soil Biology AS CR, 2004, s. 47-51. ISBN 80-86525-03-1. [Present methods for investigation of microbial community biodiversity in soils and substrates. Methodological workshop /9./. České Budějovice (CZ), 02.03.2004-03.03.2004] Institutional research plan: CEZ:AV0Z6066911 Keywords : Sherlock MIS * identification * forest litter bacterial strains Subject RIV: EH - Ecology, Behaviour

  19. 'I think it will eventually be done away with': Attitudes among healthcare professionals towards the current system of animal experimentation.

    Science.gov (United States)

    Dignon, Andrée

    2016-08-01

    This article describes a study of attitudes to the current system of animal experimentation (for the production of health interventions) among 52 UK healthcare professionals. These healthcare professionals participated in three separate focus groups (of 18, 17 and 17 participants) and were invited to respond to the question 'what is your opinion about the current system of animal testing?' The study focused specifically on their views of the current system (rather than their views of animal testing in general). The healthcare professionals were critical of the current system, particularly with regard to regulation, secrecy, validity, unnecessary suffering and welfare. PMID:25476576

  20. Demographic and health surveillance of mobile pastoralists in Chad: integration of biometric fingerprint identification into a geographical information system

    Directory of Open Access Journals (Sweden)

    Daniel Weibel

    2008-11-01

    Full Text Available There is a pressing need for baseline demographic and health-related data to plan, implement and evaluate health interventions in developing countries, and to monitor progress towards international development goals. However, mobile pastoralists, i.e. people who depend on a livestock production system and follow their herds as they move, remain marginalized from rural development plans and interventions. The fact that mobile people are hard to reach and stay in contact with is a plausible reason why they are underrepresented in national censuses and/or alternative sequential sample survey systems. We present a proof-of-concept of monitoring highly mobile, pastoral people by recording demographic and health-related data from 933 women and 2020 children and establishing a biometric identification system (BIS based on the registration and identification of digital fingerprints. Although only 22 women, representing 2.4% of the total registered women, were encountered twice in the four survey rounds, the approach implemented is shown to be feasible. The BIS described here is linked to a geographical information system to facilitate the creation of the first health and demographic surveillance system in a mobile, pastoralist setting. Our ultimate goal is to implement and monitor interventions with the “one health” concept, thus integrating and improving human, animal and ecosystem health.

  1. Animal mdels for the study of the effects of spaceflight on the immune system

    Science.gov (United States)

    Sonnenfeld, G.

    Animal models have been used extensively to study the effects of spaceflight on the immune system. The rat has been the animal used most extensively, but some studies have also been carried out utilizing mice and rhesus monkeys. Hindlimb unloading of rats and mice is a ground-based model that has been utilized to determine the effects of spaceflight-type conditions on the immune systems. The results using this model have shown that hindlimb unloading results in alterations of functional rodent immune responses, including cytokine production, blastogenesis of leukocytes, response of bone marrow cells to colony stimulating factors, neutrophil activity, and resistance to infection. Distribution of leukocyte subtypes was not affected by hindlimb unloading. Studies on rats flown in space have demonstrated that exposure to spaceflight results in alterations in cytokine production, alterations in the ability of bone marrow cells to respond to colony stimulating factors, alterations in leukocyte subset distribution, and alterations in natural killer cell function. When pregnant rats were flown in space, although the immune responses of the pregnant mothers were altered by exposure to spaceflight, no effects of spaceflight on the immune responses of the offspring were observed. In one study, rhesus monkeys were flown in space and their immune status was evaluated upon their return to earth. Results of that study showed alterations in the ability of monkey immune cells to produce cytokines, express cytokine receptors, and respond to colony stimulating factor. Therefore, it is clear that exposure to spaceflight results in alterations in immune responses of the test animals. These changes are similar to those observed for humans that have flown in space, and demonstrate that the animal models are appropriate for studying the effects of spaceflight on the immune system. Although use of the hindlimb unloading model on the ground has indicated that exposure to the model also

  2. Real time virtual reality 3D animation and control system for nuclear service robotics

    International Nuclear Information System (INIS)

    The ROSACAD robotic control system developed by Westinghouse Electric Corporation provides a robot operator with real time 3D virtual reality animation of the robot in its environment and provides on-line look ahead collision avoidance. The operator interface is ideal for systems that use teleoperation, or those in which the robot's work envelope is congested with many obstacles. The operations software uses object-oriented coding, which allows easy extension to new applications and is specifically design to integrate teleoperation interpersed with autonomous sequences. Any robot and environment can he modeled through the use of the ROBCAD solid modeling software, including the presence of moving obstacles. ROSACAD is a generic interface and control system that has beer applied in many diverse robotic systems ranging from nuclear steam generator service arms to pipe crawlers. (authors)

  3. Consensus report on the future of animal-free systemic toxicity testing.

    Science.gov (United States)

    Leist, Marcel; Hasiwa, Nina; Rovida, Costanza; Daneshian, Mardas; Basketter, David; Kimber, Ian; Clewell, Harvey; Gocht, Tilman; Goldberg, Alan; Busquet, Francois; Rossi, Anna-Maria; Schwarz, Michael; Stephens, Martin; Taalman, Rob; Knudsen, Thomas B; McKim, James; Harris, Georgina; Pamies, David; Hartung, Thomas

    2014-01-01

    Since March 2013, animal use for cosmetics testing for the European market has been banned. This requires a renewed view on risk assessment in this field. However, in other fields as well, traditional animal experimentation does not always satisfy requirements in safety testing, as the need for human-relevant information is ever increasing. A general strategy for animal-free test approaches was outlined by the US National Research Council`s vision document for Toxicity Testing in the 21st Century in 2007. It is now possible to provide a more defined roadmap on how to implement this vision for the four principal areas of systemic toxicity evaluation: repeat dose organ toxicity, carcinogenicity, reproductive toxicity and allergy induction (skin sensitization), as well as for the evaluation of toxicant metabolism (toxicokinetics) (Fig. 1). CAAT-Europe assembled experts from Europe, America and Asia to design a scientific roadmap for future risk assessment approaches and the outcome was then further discussed and refined in two consensus meetings with over 200 stakeholders. The key recommendations include: focusing on improving existing methods rather than favoring de novo design; combining hazard testing with toxicokinetics predictions; developing integrated test strategies; incorporating new high content endpoints to classical assays; evolving test validation procedures; promoting collaboration and data-sharing of different industrial sectors; integrating new disciplines, such as systems biology and high throughput screening; and involving regulators early on in the test development process. A focus on data quality, combined with increased attention to the scientific background of a test method, will be important drivers. Information from each test system should be mapped along adverse outcome pathways. Finally, quantitative information on all factors and key events will be fed into systems biology models that allow a probabilistic risk assessment with flexible

  4. Viability of decision-making systems in human and animal groups.

    Science.gov (United States)

    Sueur, Cédric

    2012-08-01

    Shared and unshared consensuses are present in both human and animal societies. To date, few studies have applied an evolutionary perspective to the viability of these systems. This study therefore aimed to assess if decision-making allows group members to satisfy all their needs and to survive, decision after decision, day after day. The novelty of this study is the inclusion of multiple decision-making events with varying conditions and the parameterization of the model based on data in macaques, bringing the model closer to ecologically reality. The activity budgets of group members in the model did not differ significantly from those observed in macaques, making the model robust and providing mechanistic insight. Three different decision-making systems were then tested: (1) One single leader, (2) Leading according to needs and (3) Voting process. Results show that when individuals have equal needs, all decision-making systems are viable. However, one single leader cannot impose its decision when the needs of other group members differ too much from its own needs. The leading according to needs system is always viable whatever the group heterogeneity. However, the individual with the highest body mass decides in the majority of cases. Finally, the voting process also appears to be viable, with a majority threshold that differs according to group size and to different individual needs. This study is the first clear prediction of the different types of consensus in animal groups used in various different conditions. PMID:22554449

  5. A restraint-free small animal SPECT imaging system with motion tracking

    Energy Technology Data Exchange (ETDEWEB)

    Weisenberger, A.G.; Gleason, S.S.; Goddard, J.; Kross, B.; Majewski, S.; Meikle, S.R.; Paulus, M.J.; Pomper, M.; Popov, V.; Smith, M.F.; Welch, B.L.; Wojcik, R.

    2005-06-01

    We report on an approach toward the development of a high-resolution single photon emission computed tomography (SPECT) system to image the biodistribution of radiolabeled tracers such as Tc-99m and I-125 in unrestrained/unanesthetized mice. An infrared (IR)-based position tracking apparatus has been developed and integrated into a SPECT gantry. The tracking system is designed to measure the spatial position of a mouse's head at a rate of 10-15 frames per second with submillimeter accuracy. The high-resolution, gamma imaging detectors are based on pixellated NaI(Tl) crystal scintillator arrays, position-sensitive photomultiplier tubes, and novel readout circuitry requiring fewer analog-digital converter (ADC) channels while retaining high spatial resolution. Two SPECT gamma camera detector heads based upon position-sensitive photomultiplier tubes have been built and installed onto the gantry. The IR landmark-based pose measurement and tracking system is under development to provide animal position data during a SPECT scan. The animal position and orientation data acquired by the tracking system will be used for motion correction during the tomographic image reconstruction.

  6. Cone Beam Micro-CT System for Small Animal Imaging and Performance Evaluation

    Directory of Open Access Journals (Sweden)

    Shouping Zhu

    2009-01-01

    Full Text Available A prototype cone-beam micro-CT system for small animal imaging has been developed by our group recently, which consists of a microfocus X-ray source, a three-dimensional programmable stage with object holder, and a flat-panel X-ray detector. It has a large field of view (FOV, which can acquire the whole body imaging of a normal-size mouse in a single scan which usually takes about several minutes or tens of minutes. FDK method is adopted for 3D reconstruction with Graphics Processing Unit (GPU acceleration. In order to reconstruct images with high spatial resolution and low artifacts, raw data preprocessing and geometry calibration are implemented before reconstruction. A method which utilizes a wire phantom to estimate the residual horizontal offset of the detector is proposed, and 1D point spread function is used to assess the performance of geometric calibration quantitatively. System spatial resolution, image uniformity and noise, and low contrast resolution have been studied. Mouse images with and without contrast agent are illuminated in this paper. Experimental results show that the system is suitable for small animal imaging and is adequate to provide high-resolution anatomic information for bioluminescence tomography to build a dual modality system.

  7. 理化检验在动物种属鉴定中的应用概况%Review on the Application of Physical and Chemical Examination in the Species and Genus Identification of Animals

    Institute of Scientific and Technical Information of China (English)

    周用武

    2011-01-01

    阐述了理化检验确定动物种属的原理、分析的方法及其在实践中的应用概况,并对理化检验用于动物种属鉴定的优缺点进行了评价。提出了理化检验用于动物种属鉴定还需要大量的试验工作,鉴定方法的方便与快捷、鉴定成本的低廉、多学科的交叉以及与计算机技术的联合是动物物种鉴定的发展方向。%The principles, analysis method of identifying the species and genus of animals by using the physical and chemical examination and its application situations in the practice were introduced. The advantages and disadvantages of identifying the species and genus of animals by using physical and chemical examination were appraised. It was proposed that a lot of experimental works should be done in the species and genus identification of animals by using physical and chemical examination. And the convenience of the identification method, low identification cost, multi-knowledge amalgamation and union with computer technology were the development direction of animal species identification.

  8. Analysis and application of minimum variance discrete linear system identification

    Science.gov (United States)

    Kotob, S.; Kaufman, H.

    1977-01-01

    An on-line minimum variance (MV) parameter identifier is developed which embodies both accuracy and computational efficiency. The formulation results in a linear estimation problem with both additive and multiplicative noise (AMN). The resulting filter which utilizes both the covariance of the parameter vector itself and the covariance of the error in identification is proven to be mean-square convergent and mean-square consistent. The MV parameter identification scheme is then used to construct a stable state and parameter estimation algorithm.

  9. Animals devoid of pulmonary system as infection models in the study of lung bacterial pathogens

    Directory of Open Access Journals (Sweden)

    Yamilé eLópez Hernández

    2015-02-01

    Full Text Available Biological disease models can be difficult and costly to develop and use on a routine basis. Particularly, in vivo lung infection models performed to study lung pathologies use to be laborious, demand a great time and commonly are associated with ethical issues. When infections in experimental animals are used, they need to be refined, defined, and validated for their intended purpose. Therefore, alternative and easy to handle models of experimental infections are still needed to test the virulence of bacterial lung pathogens. Because non-mammalian models have less ethical and cost constraints as a subjects for experimentation, in some cases would be appropriated to include these models as a valuate tools to explore host-pathogen interactions. Numerous scientific data have been argued to the more extensive use of several kinds of alternative models, such as, the vertebrate zebrafish (Danio rerio, and non-vertebrate insects and nematodes (e.g. Caenorhabditis elegans in the study of diverse infectious agents that affect humans. Here we review the use of these vertebrate and non-vertebrate models in the study of bacterial agents, which are considered the principal causes of lung injury. Curiously none of these animals have a respiratory system as in air-breathing vertebrates, where respiration takes place in lungs. Despite this fact, with the present review we sought to provide elements in favour of the use of these alternative animal models of infection to reveal the molecular signatures of host-pathogen interactions.

  10. Animals devoid of pulmonary system as infection models in the study of lung bacterial pathogens.

    Science.gov (United States)

    López Hernández, Yamilé; Yero, Daniel; Pinos-Rodríguez, Juan M; Gibert, Isidre

    2015-01-01

    Biological disease models can be difficult and costly to develop and use on a routine basis. Particularly, in vivo lung infection models performed to study lung pathologies use to be laborious, demand a great time and commonly are associated with ethical issues. When infections in experimental animals are used, they need to be refined, defined, and validated for their intended purpose. Therefore, alternative and easy to handle models of experimental infections are still needed to test the virulence of bacterial lung pathogens. Because non-mammalian models have less ethical and cost constraints as a subjects for experimentation, in some cases would be appropriated to include these models as valuable tools to explore host-pathogen interactions. Numerous scientific data have been argued to the more extensive use of several kinds of alternative models, such as, the vertebrate zebrafish (Danio rerio), and non-vertebrate insects and nematodes (e.g., Caenorhabditis elegans) in the study of diverse infectious agents that affect humans. Here, we review the use of these vertebrate and non-vertebrate models in the study of bacterial agents, which are considered the principal causes of lung injury. Curiously none of these animals have a respiratory system as in air-breathing vertebrates, where respiration takes place in lungs. Despite this fact, with the present review we sought to provide elements in favor of the use of these alternative animal models of infection to reveal the molecular signatures of host-pathogen interactions. PMID:25699030

  11. Adaptive Kernel Canonical Correlation Analysis Algorithms for Nonparametric Identification of Wiener and Hammerstein Systems

    Directory of Open Access Journals (Sweden)

    Ignacio Santamaría

    2008-04-01

    Full Text Available This paper treats the identification of nonlinear systems that consist of a cascade of a linear channel and a nonlinearity, such as the well-known Wiener and Hammerstein systems. In particular, we follow a supervised identification approach that simultaneously identifies both parts of the nonlinear system. Given the correct restrictions on the identification problem, we show how kernel canonical correlation analysis (KCCA emerges as the logical solution to this problem. We then extend the proposed identification algorithm to an adaptive version allowing to deal with time-varying systems. In order to avoid overfitting problems, we discuss and compare three possible regularization techniques for both the batch and the adaptive versions of the proposed algorithm. Simulations are included to demonstrate the effectiveness of the presented algorithm.

  12. SYSTEM IDENTIFICATION OF THE LINAC RF SYSTEM USING A WAVELET METHOD AND ITS APPLICATIONS IN THE SNS LLRF CONTROL SYSTEM

    International Nuclear Information System (INIS)

    For a pulsed LINAC such as the SNS, an adaptive feed-forward algorithm plays an important role in reducing the repetitive disturbance caused by the pulsed operation conditions. In most modern feed-forward control algorithms, accurate real time system identification is required to make the algorithm more effective. In this paper, an efficient wavelet method is applied to the system identification in which the Haar function is used as the base wavelet. The advantage of this method is that the Fourier transform of the Haar function in the time domain is a sine function in the frequency domain. Thus we can directly obtain the system transfer function in the frequency domain from the coefficients of the time domain system response

  13. A HYBRID TECHNIQUE FOR FREQUENCY DOMAIN IDENTIFICATION OF SERVO SYSTEM WITH FRICTION FORCE

    Directory of Open Access Journals (Sweden)

    SHAIK.RAFI KIRAN,

    2011-03-01

    Full Text Available The system identification process in servo system with frictional force seems to be a complex task becauseof its non-linear nature. For such non-linear systems, a good choice is system identification in frequencydomain. However, most of the techniques are manual and are inappropriate for determination of systemparameters. This makes system identification ineffective for servo systems with frictional force. Toovercome this issue, a hybrid technique is proposed in this paper. The proposed technique exploits neuralnetwork and genetic algorithm to determine the system parameters of servo systems with friction. In theproposed technique, the target parameters are determined from the transfer function derived for thesystem. Subsequently, the system parameters are identified by a process formed by blending the neuralnetwork and genetic algorithm techniques. Prior to performing the identification procedure, backpropagation training is given to the neural network using a pre-examined dataset. Then with thecombined operation of neural network and genetic algorithm, the system parameters that are closer tothe target parameters for the servo system with frictional force are determined. The technique isimplemented and compared with the existing frequency domain identification technique. From thecomparative results, it is evident that the proposed technique outperforms the existing technique.

  14. Full modelling of the MOSAIC animal PET system based on the GATE Monte Carlo simulation code

    International Nuclear Information System (INIS)

    Positron emission tomography (PET) systems dedicated to animal imaging are now widely used for biological studies. The scanner performance strongly depends on the design and the characteristics of the system. Many parameters must be optimized like the dimensions and type of crystals, geometry and field-of-view (FOV), sampling, electronics, lightguide, shielding, etc. Monte Carlo modelling is a powerful tool to study the effect of each of these parameters on the basis of realistic simulated data. Performance assessment in terms of spatial resolution, count rates, scatter fraction and sensitivity is an important prerequisite before the model can be used instead of real data for a reliable description of the system response function or for optimization of reconstruction algorithms. The aim of this study is to model the performance of the Philips Mosaic(TM) animal PET system using a comprehensive PET simulation code in order to understand and describe the origin of important factors that influence image quality. We use GATE, a Monte Carlo simulation toolkit for a realistic description of the ring PET model, the detectors, shielding, cap, electronic processing and dead times. We incorporate new features to adjust signal processing to the Anger logic underlying the Mosaic(TM) system. Special attention was paid to dead time and energy spectra descriptions. Sorting of simulated events in a list mode format similar to the system outputs was developed to compare experimental and simulated sensitivity and scatter fractions for different energy thresholds using various models of phantoms describing rat and mouse geometries. Count rates were compared for both cylindrical homogeneous phantoms. Simulated spatial resolution was fitted to experimental data for 18F point sources at different locations within the FOV with an analytical blurring function for electronic processing effects. Simulated and measured sensitivities differed by less than 3%, while scatter fractions agreed

  15. Dynamic testing of systems – use of TRNSYS as an approach for parameter identification

    OpenAIRE

    Almeida, P.; Carvalho, M. J.; Amorim, Ricardo; Mendes, J. Farinha; Lopes, Vitor V.

    2014-01-01

    Dynamic testing of solar thermal systems is presently defined by ISO 9459-5:2007. The testing methodology is clearly defined in the standard. Presently, laboratories that use Dynamic System Testing methodology only have available for identification of parameters, a closed source program, which is based on a model described by Spirkl and Muschawek (1992). The present paper describes the work done following a different approach for the identification of parameters – use of TRNSYS to simulat...

  16. MIMO LPV state-space identification of open-flow irrigation canal systems

    OpenAIRE

    Yolanda Bolea; Nicolas Chefdor; Antoni Grau

    2012-01-01

    Canal systems are complex nonlinear, distributed parameter systems with changing parameters according to the operating point. In this paper, a linear parameter-varying (LPV) state-space canal control model is obtained by identification in a local way using a multimodel approach. This LPV identification procedure is based on subspace methods for different operating points of an irrigation canal covering the full operation range. Different subspace algorithms have been used and compared. The mo...

  17. System Identification and Prediction of Dengue Fever Incidence in Rio de Janeiro

    OpenAIRE

    Gerardi, D. O.; L. H. A. Monteiro

    2011-01-01

    Identification, prediction, and control of a system are engineering subjects, regardless of the nature of the system. Here, the temporal evolution of the number of individuals with dengue fever weekly recorded in the city of Rio de Janeiro, Brazil, during 2007, is used to identify SIS (susceptible-infective-susceptible) and SIR (susceptible-infective-removed) models formulated in terms of cellular automaton (CA). In the identification process, a genetic algorithm (GA) is utilized to find the ...

  18. The NNSYSID Toolbox - A MATLAB Toolbox for System Identification with Neural Networks

    DEFF Research Database (Denmark)

    Nørgård, Peter Magnus; Ravn, Ole; Hansen, Lars Kai; Poulsen, Niels Kjølstad

    To assist the identification of nonlinear dynamic systems, a set of tools has been developed for the MATLAB(R) environment. The tools include a number of different model structures, highly effective training algorithms, functions for validating trained networks, and pruning algorithms for...... determination of optimal network architectures. The toolbox should be regarded as a nonlinear extension to the system identification toolbox provided by The MathWorks, Inc. This paper gives a brief overview of the entire collection of toolbox functions...

  19. The NNSYSID Toolbox - A MATLAB Toolbox for System Identification with Neural Networks

    OpenAIRE

    Nørgård, Peter Magnus; Ravn, Ole; Hansen, Lars Kai; Poulsen, Niels Kjølstad

    1996-01-01

    To assist the identification of nonlinear dynamic systems, a set of tools has been developed for the MATLAB(R) environment. The tools include a number of different model structures, highly effective training algorithms, functions for validating trained networks, and pruning algorithms for determination of optimal network architectures. The toolbox should be regarded as a nonlinear extension to the system identification toolbox provided by The MathWorks, Inc. This paper gives a brief overview ...

  20. Laboratory work on identification of linear dynamic systems using a digital oscilloscope PV6503

    OpenAIRE

    Korovyats’ka, Nataliya

    2013-01-01

    One of the first implemented in the control systems has been the method of identification methods based on the use of pulse influences. The aim of this work is a graphical identification of linear dynamic systems with a digital oscilloscope. Let have some device one-port and by one output which is described unknown dependence. At the input of a pulse, the output is a graphic signal. According to this signal is identified which of these devices is considered.