Computer Aided Generation and Operation of Hydrologic Simulation Models

1994 ◽  
pp. 1473-1480
Author(s):  
F. G. Rohde ◽  
M. Haase ◽  
Ch. Gitschel
Keyword(s):  
Simulation Models ◽  
Hydrologic Simulation ◽  
Computer Aided

SMoBAICS

2017 ◽  
Vol 5 (2) ◽  
pp. 34-57
Author(s):  
Volkhard Klinger
Keyword(s):  
Data Acquisition ◽  
Simulation Models ◽  
Identification System ◽  
Animal Testing ◽  
Cuff Electrode ◽  
Platform Architecture ◽  
Computer Aided ◽  
Verification Systems ◽  
Application Fields ◽  
And Control

Simulation and modelling are powerful methods in computer aided therapy, rehabilitation monitoring, identification and control. The smart modular biosignal acquisition and identification system (SMoBAICS) provides methods and techniques to acquire electromyogram (EMG)- and electroneurogram (ENG)-based data for the evaluation and identification of biosignals. In this paper the author focuses on the development, integration and verification of platform technologies which support this entire data processing. Simulation and verification approaches are integrated to evaluate causal relationships between physiological and bioinformatical processes. Based on this we are stepping up of efforts to develop substitute methods and computer-aided simulation models with the objective of reducing animal testing. This work continues the former work about system identification and biosignal acquisition and verification systems presented in (Bohlmann et al., 2010), (Klinger and Klauke, 2013), (Klinger, 2014). This paper focuses on the next generation of an embedded data acquisition and identification system and its flexible platform architecture. Different application scenarios are shown to illustrate the system in different application fields. The author presents results of the enhanced closed-loop verification approach and of the signal quality using the Cuff-electrode-based ENG-data acquisition system.

scholarly journals 3D-printed Surgical Training Model Based on Real Patient Situations for Dental Education

2020 ◽  
Vol 17 (8) ◽  
pp. 2901
Author(s):  
Marcel Hanisch ◽  
Elke Kroeger ◽  
Markus Dekiff ◽  
Maximilian Timme ◽  
Johannes Kleinheinz ◽  
...  
Keyword(s):  
Surgical Training ◽  
Alternative Hypothesis ◽  
Simulation Models ◽  
Training Model ◽  
Patient Data ◽  
Root Tip ◽  
Real Patient ◽  
Training Models ◽  
Computer Aided ◽  
3D Printed

Background: Most simulation models used at university dental clinics are typodonts. Usually, models show idealized eugnathic situations, which are rarely encountered in everyday practice. The aim of this study was to use 3D printing technology to manufacture individualized surgical training models for root tip resection (apicoectomy) on the basis of real patient data and to compare their suitability for dental education against a commercial typodont model. Methods: The training model was designed using CAD/CAM (computer-aided design/computer-aided manufacturing) technology. The printer used to manufacture the models employed the PolyJet technique. Dental students, about one year before their final examinations, acted as test persons and evaluated the simulation models on a visual analogue scale (VAS) with four questions (Q1–Q4). Results: A training model for root tip resection was constructed and printed employing two different materials (hard and soft) to differentiate anatomical structures within the model. The exercise was rated by 35 participants for the typodont model and 33 students for the 3D-printed model. Wilcoxon rank sum tests were carried out to identify differences in the assessments of the two model types. The alternative hypothesis for each test was: “The rating for the typodont model is higher than that for the 3D-printed model”. As the p-values reveal, the alternative hypothesis has to be rejected in all cases. For both models, the gingiva mask was criticized. Conclusions: Individual 3D-printed surgical training models based on real patient data offer a realistic alternative to industrially manufactured typodont models. However, there is still room for improvement with respect to the gingiva mask for learning surgical incision and flap formation.

scholarly journals Conceptual Microarchitectures for Hydrologic Simulation Models

2018 ◽  
Vol 7 (1) ◽  
Author(s):  
Adriana Urciuolo ◽  
Iturraspe Rodolfo ◽  
Ariel Parson
Keyword(s):  
Real World ◽  
Simulation Models ◽  
Physical Parameters ◽  
Hydrologic Simulation ◽  
Hydrologic Models ◽  
Systems Architecture ◽  
Environmental Information Systems ◽  
Wide Range ◽  
Information Systems Architecture ◽  
High Level

Mathmatical Hydrologic models simulate real world environmental processes through different strategies. Each process is calculated by means of methods that utilize physical parameters for representing the real world system. some parameters are obtained from tables, some of them are optimized and others may be calculated using environmental variables. Although the domain software provides a wide range of models, there is not a conceptual architecture that allows the maintenance of the vast knowledge about simulation strategies and parameters collected in environmental management organizations, facilitating the flexible simulation scenarios configuration. The present work shows how to face this problem by means of conceptual analysis models organized in the scope of a general architecture.It's also possible for the given architecture, to analyze and define microarchitectures for software components releated to particular problems.In the present work, conceptual microarchitectures are definesd to construct a knowlegde level for hydrologic models systems starting from a general conceptual Environmental Information Systems architecture. To get the required flexibility for the conceptual and design models, high-level components are identified and different kinds of patterns are applied. 

scholarly journals PENGGUNAAN MODEL DINAMIK DALAM PENENTUAN PRIORITAS KONSERVASI AIR TANAH DI KABUPATEN BANTUL = Dynamic Model Application to Determine Ground Water Conservation Priorities in Bantul District

2016 ◽  
Vol 14 (2) ◽  
pp. 115
Author(s):  
Setyawan Purnama
Keyword(s):  
Water Conservation ◽  
Dynamic Models ◽  
Model Simulation ◽  
Groundwater Resources ◽  
Simulation Models ◽  
Conservation Priorities ◽  
Hydrologic Simulation ◽  
Groundwater Availability ◽  
Behavior Simulation ◽  
Policy Priority

Recently, problem related to water resources, especially groundwater is more complex. Basically there are three problems related to groundwater resources i.e. quantity, quality and its distribution (spatially or temporary). Conservation is needed to be done to keep its sustainability. Base on this background, the objectives of the research is (1) to build groundwater conservation model, (2) to analyse theperfomance of model in various physical and social-economic condition and (3) to determine policy priority of groundwater resources conservation. Calculation of groundwater availability, safe yield,and its usage for domestic, industry, hotels and poultry are carried out to achieve these objectives. Powersim 2,5c. programme is used as model simulation. As a result, it is known that dynamic modelwith Powersim 2,5c. programme can be used to do hydrologic simulation models, especially in groundwater conservation models. Base on model behavior simulation, it is known that decreasing ofland conversion to settlement can be preserved decreasing of groundwater recharge and decreasing of groundwater storage significantly. Moreover, because of its hydrologic system, the decreasing of land conservation do not just be done in Bantul District, but also in Sleman and Jogjakarta City. Besides decreasing of land conversion, the policy that can be done to conservate groundwater is by decreasing water consumption. Keywords : dynamic models, groundwater conservation, Bantul DistrictAbstrakSaat ini, permasalahan yang berkaitan dengan sumberdaya air, khususnya sumberdaya air tanah semakin kompleks. Pada dasarnya ada tiga masalah dalam kaitannya dengan sumberdaya ini,yaitu masalah kuantitas, kualitas dan masalah distribusi, baik secara keruangan maupun waktu. Upaya konservasi perlu sedini mungkin dilakukan terhadap keberadaan sumberdaya ini agar keberlanjutannya dapat terjaga. Tujuan dari penelitian ini adalah (1) membuat model konservasi air tanah di daerah penelitian. (2) mengetahui perilaku model pada berbagai kondisi fisik dan sosial ekonomi dan (3) merumuskan prioritas kebijakan konservasi sumberdaya air tanah di daerah penelitian yang sesuai dengan karakteristik daerah. Untuk mencapai tujuan ini dilakukan perhitungan ketersediaan air tanah dan hasil aman dengan metode statik dan perhitungan kebutuhan air untukkeperluan domestik, industri, perhotelan dan peternakan. Untuk melakukan simulasi pemodelan digunakan Program Powersim 2,5c. Hasil penelitian menunjukkan bahwa model dinamik denganmenggunakan Program Powersim 2,5c dapat digunakan untuk melakukan simulasi model hidrologi, khususnya model konservasi air tanah. Berdasarkan hasil simulasi model, diketahui bahwa denganmengurangi laju konversi lahan menjadi permukiman, dapat mempertahankan pengurangan imbuh air tanah dan mengurangi laju pengurangan jumlah air tanah tersimpan secara signifikan.Pengurangan laju konversi lahan bukan hanya dilakukan di wilayah Kabupaten Bantul, namun dilakukan secara terpadu untuk seluruh Sistem Akuifer Merapi yang juga meliputi Kabupaten Slemandan Kota Yogyakarta. Selain dengan mengurangi konversi lahan, kebijakan yang dapat dilakukan dalam konservasi air tanah di Kabupaten Bantul, adalah dengan gerakan hemat air.Kata kunci : model dinamik, konservasi air tanah, Kabupaten Bantul

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