Journal articles: 'Kano modelling'

1

Mukhtar, I., E. O. Iguisi, A. U. Shehu, Yusuf Dabo, M. Abubakar, S. M. Zubairu, and A. Balarabe. "EFFECTS OF LANDUSE AND LANDCOVER CHANGE ON FLOODING IN KANO METROPOLIS, KANO STATE, NIGERIA." FUDMA JOURNAL OF SCIENCES 4, no. 3 (September 29, 2020): 505–12. http://dx.doi.org/10.33003/fjs-2020-0403-368.

Full text

Abstract:

ABSTRACT This paper looked at the change in land use land cover (LULC) of Kano metropolis from 2001 to 2012; projected to 2035 and thereby assessing the response of these different land covers to rainfall event using the Hydrologic Engineering Corps- Hydrologic Modelling System (HEC-HMS) model. The outcome of the LULC revealed that the built-up areas increased from 19.7% to 34.4% and then to 54.4% in 2001, 2012 and 2035, respectively. The discharge of Jakara basin indicated a rise from 2001, 2012 to 2035 in the order of 443, 585.2 to 609.7 cm3/sec respectively. However, that of Chalawa shows increase between 2001 and 2012 and a decrease in 2035 as a result of canalization within the basin. The paper recommended adherence to the city masterplan and construction of canals within each sub-drainage basin for proper conveyance of run-off discharge.

APA, Harvard, Vancouver, ISO, and other styles

2

Singgih, Moses Laksono, Primahasmi Dalulia, Mokh Suef, and Putu Dana Karningsih. "Performance Modelling for Maintenance Outsourcing Providers based on the Kano Model." International Journal of Technology 9, no. 4 (July 25, 2018): 797. http://dx.doi.org/10.14716/ijtech.v9i4.1888.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Bi, Jian-Wu, Yang Liu, Zhi-Ping Fan, and Erik Cambria. "Modelling customer satisfaction from online reviews using ensemble neural network and effect-based Kano model." International Journal of Production Research 57, no. 22 (February 7, 2019): 7068–88. http://dx.doi.org/10.1080/00207543.2019.1574989.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Zhao, Meng, Chen-xi Zhang, Yi-qi Hu, Ze-shu Xu, and Hao Liu. "MODELLING CONSUMER SATISFACTION BASED ON ONLINE REVIEWS USING THE IMPROVED KANO MODEL FROM THE PERSPECTIVE OF RISK ATTITUDE AND ASPIRATION." Technological and Economic Development of Economy 27, no. 3 (April 13, 2021): 550–82. http://dx.doi.org/10.3846/tede.2021.14223.

Full text

Abstract:

With the development of e-commerce, an increasing number of online reviews can serve as a promising data source for enterprises to improve online products. This paper proposes a method for modelling consumer satisfaction based on online reviews using the improved Kano model from the perspective of risk attitude and aspiration. Firstly, the attributes concerned by consumers are extracted from online reviews, and sentiment analysis of the extracted attributes is carried out using Standford CoreNLP. Secondly, to identify the types of product attributes, an improved Kano model is proposed based on the effects of product attributes on consumer total utility. On this basis, different attribute types are illustrated from the perspective of risk attitude. Then, the consumer aspirations are mined based on the risk attitudes of different attributes and the attribute impact on consumer satisfaction. According to the risk attitudes and aspirations of different attributes, the quantified satisfaction functions are constructed to provide more objective and accurate improvement suggestions. Finally, the proposed method is applied to the hotel service improvement to illustrate the effectiveness.

APA, Harvard, Vancouver, ISO, and other styles

5

Otuoze, Suleiman Hassan, Dexter V. L. Hunt, and Ian Jefferson. "Neural Network Approach to Modelling Transport System Resilience for Major Cities: Case Studies of Lagos and Kano (Nigeria)." Sustainability 13, no. 3 (January 28, 2021): 1371. http://dx.doi.org/10.3390/su13031371.

Full text

Abstract:

Congestion has become part of everyday urban life, and resilience is very crucial to traffic vulnerability and sustainable urban mobility. This research employed a neural network as an adaptive artificially-intelligent application to study the complex domains of traffic vulnerability and the resilience of the transport system in Nigerian cities (Kano and Lagos). The input criteria to train and check the models for the neural resilience network are the demographic variables, the geospatial data, traffic parameters, and infrastructure inventories. The training targets were set as congestion elements (traffic volume, saturation degree and congestion indices), which are in line with the relevant design standards obtained from the literature. A multi-layer feed-forward and back-propagation model involving input–output and curve fitting (nftool) in the MATLAB R2019b software wizard was used. Three algorithms—including Levenberg–Marquardt (LM), Bayesian Regularization (BR), and a Scaled Conjugate Gradient (SCG)—were selected for the simulation. LM converged easily with the Mean Squared Error (MSE) (2.675 × 10−3) and regression coefficient (R) (1.0) for the city of Lagos. Furthermore, the LM algorithm provided a better fit for the model training and for the overall validation of the Kano network analysis with MSE (4.424 × 10−1) and R (1.0). The model offers a modern method for the simulation of urban traffic and discrete congestion prediction.

APA, Harvard, Vancouver, ISO, and other styles

6

Ullah, Fahim, Samad M. E. Sepasgozar, Sara Shirowzhan, and Steven Davis. "Modelling users’ perception of the online real estate platforms in a digitally disruptive environment: An integrated KANO-SISQual approach." Telematics and Informatics 63 (October 2021): 101660. http://dx.doi.org/10.1016/j.tele.2021.101660.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Yakubu, Mahadi Lawan, Usman Tasiu Abdurrahman, Muhammad Tajuri Ahmed, Amina Sallau Aliyu, Muttaqa Uba Zango, and Ali Sani Maihula. "The Progressive Response of Sahelian Dams to Sediment Intrusion: Case of Kano State between 1976 and 2009." Applied Mechanics and Materials 773-774 (July 2015): 1301–6. http://dx.doi.org/10.4028/www.scientific.net/amm.773-774.1301.

Full text

Abstract:

Reservoirs are built to store water during abundance for possible reuse during scarcity; sediment incursion is the leading phenomenon that limit reservoirs to sustain this function. Therefore, modelling the rate at which reservoir accumulates sediments is critical in understanding the nature of the problem, the time frame within which it is expected to occur, and the best mitigation strategy that will maintain the reservoir service. This study investigated the sediment influx in three typical Sahelian reservoirs in Kano state using the bathymetric method. The reservoir capacities were found to be declining at different rates but with grave consequences on the future, and economy of the state. In prolific terms, the state is losing 490 million litres of water storage each year. Presently, Magaga lost 39% of its capacity; Thomas has lost 13%; while Kafin-chiri has lost 5%. For sustainability, this trend needs to be addressed. The short and long-term best management strategies to curtail this trend have been outlined in this study.

APA, Harvard, Vancouver, ISO, and other styles

8

Aliyu, A. S., M. S. Shamsiyya, Z. N. Lambu, A. Sabo, and H. B. Haruna. "Prevalence of Vaginitis among Women Attending Antenatal Care Centre of Wudil General Hospital, Kano State Nigeria." UMYU Journal of Microbiology Research (UJMR) 6, no. 1 (June 30, 2021): 18–23. http://dx.doi.org/10.47430/ujmr.2161.003.

Full text

Abstract:

Vaginitis is usually caused by a change in the normal balance of vaginal microbes, an infection or reduced oestrogen levels after menopause leading to variety of infections by bacteria, fungi and viruses. The study aimed to determine the prevalence of vaginitis and its associated risk factors among women attending antenatal care center of Wudil general hospital, Kano Nigeria. A total of 352 High Vaginal Swab and serum samples were collected from women attending antenatal care centre of Wudil general hospital. The samples were processed and screened for the presence of Candida albicans, Trichomonas vaginalis and Treponema pallidum through culture and microscopy and serum venereal disease research laboratory (VDRL) test. The risk factors were assessed using a designed questionnaire and analysed using Multivariate logistic modelling. The prevalence of C. albicans, T. vaginalis and Treponema pallidum were found to be 32.38%, 18.46 %, and 4.83%, respectively(p≤0.05). The result showed that the risk factors that are significantly associated with the prevalence of vaginitis were active sex age (26 – 30) years, educational status and number of participants husband’s wives. The study identifies that C. albicans is the major cause of vaginitis, and is insignificantly associated with active sex age educational status and number of participants husband’s wives. Keywords: Candida albicans, Trichomonas vaginalis, Treponema pallidum, Pregnant Women

APA, Harvard, Vancouver, ISO, and other styles

9

Idris, Maryam, T. H. Darma, F. S. Koki, A. Suleiman, M. H. Ali, S. U. Yarima, and A. Aliyu. "An analysis of air pollution at some industrial areas of Kano using the AERMOD Model." Bayero Journal of Pure and Applied Sciences 12, no. 1 (April 15, 2020): 117–27. http://dx.doi.org/10.4314/bajopas.v12i1.20s.

Full text

Abstract:

The effect of pollution on air quality has been a concern for mankind for a long time. In some cases the problem is essentially one of local emissions in a given urban area leading to an adverse effect on air quality in that same area. However, in the general case, the problem is more diverse in that the problem of air pollution has multiplicity effects beyond the point source and these effects are dynamic in nature. Such effects are usually evaluated using dynamical equations. In this study, a comprehensive review on effect of air polluting variables was described on the basis of evaluation of formulation equations of the American Meteorological Society and U.S. Environmental protection Agency Regulatory Model (AERMOD view 9.6.5). The AERMOD model was also used to simulate the dispersion and deposition of the hourly and daily H2S and NO2 concentrations from two domains: Challawa and Sharada industrial estates /areas respectively. The AERMOD model evaluation showed that there was good correlation between the modelled and observed H2S concentration for the daily and hourly comparison at Challawa (0.53 and 0.91 respectively) but the daily and hourly comparison of H2S at Sharada (0.13 and 0.46 respectively) was seen to drop indicating poor correlation and model skill. However, model evaluation of NO2 shows poor agreements and model skill at Challawa as well as daily comparison at Sharada. However, the modelling shows good agreement (R2= 0.64) in the trend for the hourly value modelled versus observed concentrations at Sharada. Moreover, the mean absolute percentage error (MAPE) for the two pollutants (H2S and NO2) at all the two domains indicates highly accurate result for both daily and hourly concentrations. AERMOD software can therefore be used to estimate the dispersion and deposition of the pollutants at some domains considered in this study. Key Words: AERMOD model, Air pollutant, Industrial sources, Dispersion and Deposition

APA, Harvard, Vancouver, ISO, and other styles

10

Aksornsri, Pongsurachat, and Sarawan Wongsa. "Quantification of Valve Stiction using Particle Swarm Optimisation with Linear Decrease Inertia Weight." ECTI Transactions on Computer and Information Technology (ECTI-CIT) 11, no. 1 (June 8, 2017): 40–49. http://dx.doi.org/10.37936/ecti-cit.2017111.64815.

Full text

Abstract:

Valve stiction is one of the most common problems on industrial process control loops. The detection and quantification of valve stiction in control loops is therefore important to ensure the high quality of the products and maintain the reliable performance of control loops. This paper presents an algorithm for quantifying valve stiction in control loop based on linear decrease inertia weight particle swarm optimization to obtain more accurate estimates of stiction parameters. The amount of stiction present in the valve is estimated by identifying parameters of Kano model which is a two-parameter data-driven stiction modelling based on the parallelogram of MVPV phase plot. Simulation results have demonstrated the efficacy of this algorithm in valve stiction quantification and also its robustness to oscillations due to inappropriate controller tuning and external disturbances. Results are confirmed by application to real process industrial data.

APA, Harvard, Vancouver, ISO, and other styles

11

Madzík, Peter, Pavol Budaj, Dalibor Mikuláš, and Dominik Zimon. "Application of the Kano Model for a Better Understanding of Customer Requirements in Higher Education—A Pilot Study." Administrative Sciences 9, no. 1 (January 28, 2019): 11. http://dx.doi.org/10.3390/admsci9010011.

Full text

Abstract:

Various pieces of information and knowledge turn into “know-how” simply by their application in the market. This applies to all spheres of activities. It is therefore important to know and understand the requirements of customers already in the stage of making a product, and to confront these with the possibilities of a producer. In this article we are exploring the possibilities of a better understanding of the requirements of customers and stakeholders in the process of the creation of products in educational services. In particular, we examined seven general requirements: practice orientation, ethical orientation, research orientation, quality resources, innovation orientation, skills orientation, and quality staff. We use the Kano model on a pilot sample of respondents at an institution of higher education. Our results showed that “practice orientation” and “quality resources” are the most stable requirements, while “quality staff” is the least stable. The most linear requirement (the same effect on satisfaction and dissatisfaction) is “innovation orientation”. “Research orientation” belongs to attractive requirements and we also found that in the case of “ethical orientation” there are weak relations between positive and negative responses in our survey. The “skills orientation” proved to be too general, and our research shows that it could be indifferent. It is therefore advisable to specify the investigated skills when investigating requirements on educational services. The main contribution based on the proposed research procedures is an effective linking of customers and producers already from the beginning of constructing a value chain. Investing in sophisticated management approaches when modelling products and processes can thus become a significant source of the competitive advantage of an educational institution. At the same time, it is a contribution to better placing of its graduates in the labor market.

APA, Harvard, Vancouver, ISO, and other styles

12

Shehu, Abdulazeez, Mohammed Saleh, Abubakar M. Hotoro, and Abdulrahim A. Bunawa. "Application of Ground Magnetic Geophysical Method in the Delineation of Subsurface Structures of Dala Hill in Kano Ancient City, Northwest Nigeria." Environmental and Earth Sciences Research Journal 7, no. 4 (December 31, 2020): 147–52. http://dx.doi.org/10.18280/eesrj.070404.

Full text

Abstract:

Ground Magnetic measurement was carried out with the aim of delineating the subsurface structures on Dala hill, Kano State. Total magnetic intensity data were acquired using the SCINTREX proton precession magnetometer along closely spaced traverses. The acquired total magnetic intensity data were reduced and plotted using Golden Surfer software to produce the 2D and 3D surface maps for visual inspection. Five profiles AB, CD, EF, GH and IJ were selected for forward modelling using Mag2dc software to give detail information about the causative body parameters. The depths of these bodies from the surface fall in the interval 0.0 m to 8.5 m. The high magnetic anomaly field ranges from -21,752 to 47,205 nT which suggested area of iron occurrences. The study categorized the identified major anomalous features into two: the shallower bodies which penetrated down to a maximum depth of 67.3 m were inferred to be disturbed sediments, fire pits and kilns; whereas the rest, the deep-rooted features with greater depth of penetration reaching up to 193.2m, have high susceptibility range of up to 7.3 SI units, were interpreted to be intrusive ferromagnetic bodies. The findings of the study were in close agreement with recent archaeological findings about the hill.

APA, Harvard, Vancouver, ISO, and other styles

13

Iyiola-Tunji, A. O., D. Baba, and W. Buba. "Explorative analysis of relationships among breed, growth traits, prices and sex of sheep using structural equation modeling." Nigerian Journal of Animal Production 47, no. 1 (December 19, 2020): 114–21. http://dx.doi.org/10.51791/njap.v47i1.195.

Full text

Abstract:

The dynamics of factors that cumulate to determine the prices of sheep during festive periods (Eid al-Adha) are known. However, such factors that dictate prices during off-season (non-festivity periods) are not fully known. Structural equation modeling as a multivariate analytical tool is capable of bringing out the latent (hidden) factors responsible for price determination for sheep. Prices, body weight and linear body measurements of 621 sheep of both sexes consisting of Balami, Sudanese, Uda and Yankasa breeds were used to examine relationships among the variables. The sheep were obtained from Unguwa Uku, Dorayi, Kara, Bachirawa, Yankaba, Mariri and Kabara livestock markets in Municipal, Taruauni, Gmale, Nassarawa, Fagge and Dala Local Government Areas of Kano State. Body weights, neck length, back length, leg length, height at wither, loin girth and chest girth were parameters monitored. The data obtained were subjected to generalized least squares (GLS) estimator of a triangular seemingly unrelated regression (SUR) model. Maximum likelihood estimation method of structural equation modelling was used to generate parameter estimates through recursive system with correlated errors (SEM Command Language). Price of sheep is an observed variable while type and body parameters were generated as latent variables. Type as a latent variable had direct relationships with breed, sex and body weight class. Body parameter on the other hand had direct relationships with body weight and all the linear body measurements. The z-values were 2.9 for breed, 2.8 for sex and 2.5 for body weight class, others are 4.6 for birth weight, 1.9 for neck length, 4.1 for back length, 6.8 for loin, 7.4 for chest girth, 8.3 for height at wither and 6.1 for leg length. Simultaneous prediction equations for estimating prices of sheep had been generated for some selected livestock markets in Kano State.

APA, Harvard, Vancouver, ISO, and other styles

14

Lee, Chen, Lin, Li, and Zhao. "Developing a Quick Response Product Configuration System under Industry 4.0 Based on Customer Requirement Modelling and Optimization Method." Applied Sciences 9, no. 23 (November 20, 2019): 5004. http://dx.doi.org/10.3390/app9235004.

Full text

Abstract:

In the Industry 4.0 environment, the new manufacturing transformation of mass customization for high-complexity and low-volume production is moving forward. Based on cyber-physical system (CPS) and Internet of things (IoT) technology, the flexible transformation of the manufacturing process to suit diverse customer manufacturing requirements is very possible, with the potential to provide digital “make-to-order” (MTO) services with a quick response time. To achieve this potential, a product configuration system, which translates the voice of customers to technical specifications, is needed. The purpose of this study is to propose a methodology for developing a quick-response product configuration system to enhance the communication between the customer and the manufacturer. The aim is to find an approach to receive requests from customers as inputs and generate a product configuration as outputs that maximizes customer satisfaction. In this approach, engineering characteristics (ECs) are defined, and selection pools are initially constructed. Then, quality function deployment (QFD) is modified and integrated with the Kano model to qualitatively and quantitatively analyze the relationship between customer requirements (CRs) and customer satisfaction (CS). Next, a mathematical programming model is applied to maximize the overall customer satisfaction level and recommend an optimal product configuration. Finally, sensitivity analysis is conducted to suggest revisions for customers and determine the final customized product specification. A case study and an OrderAssistant system are implemented to demonstrate the procedure and effectiveness of the proposed quick response product configuration system.

APA, Harvard, Vancouver, ISO, and other styles

15

Oyewole, J. A., F. O. Aweda, and D. Oni. "Comparison Of Three Numerical Methods For Estimating Weibull Parameters Using Weibull Distribution Model In Nigeria." Nigerian Journal of Basic and Applied Sciences 27, no. 2 (May 27, 2020): 8–15. http://dx.doi.org/10.4314/njbas.v27i2.2.

Full text

Abstract:

There is a crucial need in Nigeria to enhance the development of wind technology in order to boost our energy supply. Adequate knowledge about the wind speed distribution becomes very essential in the establishment of Wind Energy Conversion Systems (WECS). Weibull Probability Density Function (PDF) with two parameters is widely accepted and is commonly used for modelling, characterizing and predicting wind resource and wind power, as well as assessing optimum performance of WECS. Therefore, it is paramount to precisely estimate the scale and shape parameters for all regions or sites of interest. Here, wind data from year 2000 to 2010 for four different locations (Port Harcourt, Ikeja, Kano and Jos) were analysed and the Weibull parameters was determined. The three methods employed are Mean Standard Deviation Method (MSDM), Energy Pattern Factor Method (EPFM) and Method of Moments (MOM) for estimating Weibull parameters. The method that gave the most accurate estimation of the wind speed was MSDM method, while Energy Pattern Factor Method (EPFM) is the most reliable and consistent method for estimating probability density function of wind. Keywords: Weibull Distribution, Method of Moment, Mean Standard Deviation Method, Energy Pattern Method

APA, Harvard, Vancouver, ISO, and other styles

16

Li, Yongfeng, and Liping Zhu. "Product form design model based on the robust posterior preference articulation approach." Concurrent Engineering 27, no. 2 (May 2, 2019): 126–43. http://dx.doi.org/10.1177/1063293x19844557.

Full text

Abstract:

Affective responses reflect consumers’ affective needs and have attracted considerable attention in industrial product form design. When designing a product for consumers, designers should take into account multiple affective responses. Therefore, designing products that can satisfy multiple affective responses is a multi-objective optimization problem. In this article, a novel model based on the robust posterior preference articulation approach is proposed to optimize product form design by simultaneously considering multiple affective responses. First, design analysis is performed to determine design variables and affective responses. Subsequently, the Taguchi method is used, and the signal-to-noise ratios are calculated. Based on the results, predictive models for signal-to-noise ratios concerning multiple affective responses are built and then a multi-objective optimization model is constructed. The reference-point-based many-objective non-dominated sorting genetic algorithm–II (called NSGA-III) is used to solve the multi-objective optimization model for obtaining Pareto solutions. Finally, a combination of the fuzzy Kano model and the fuzzy optimum selection model is adopted to select the optimal solution from the obtained Pareto solutions. A car profile design was employed to present the proposed approach. The results reveal that the proposed approach can effectively achieve an optimal design and is a robust approach for optimizing product form design.

APA, Harvard, Vancouver, ISO, and other styles

17

Thlakma, Richard Sunday, and John Eche Omale. "AN ASSESSMENT OF THE VARIOUS MITIGATION STRATEGIES TO COMBAT DESERTIFICATION IN JIBIA AND KAITA LOCAL GOVERNMENT AREAS OF KATSINA STATE." Geosfera Indonesia 4, no. 2 (August 2, 2019): 124. http://dx.doi.org/10.19184/geosi.v4i2.10192.

Full text

Abstract:

This study was conducted on an assessment of the various mitigation strategies to combat desertification in Jibia and Kaita Local Government Areas of Katsina State, Nigeria. The data use includes Satellite imageries for the study such as landsat MSS of 1976, landsat TM of 1987, SPOT XS of 1995 and landsat ETM of 2006 as well as structured questionnaires. Sixty close ended copies of the Questionnaire were administered in the study. Purposive sampling method of administering questionnaires was adopted. The percentages land mass covered for each of these variables was determined and estimated in M2. literature was obtained from various agencies which were responsible for desertification control in Katsina state. It was found from the reserved forest that in 1976 the percentage of reserved forest was 2.57%. In 1987 however, it increased by 73.9% to 76.47 %. By 1995, it declined by 9.42% to 67.05% and further declined by 0.52% in 2006. Effort to combat desertification through the use of reserved forest has been quite significant over the years. Also, noticed was a declined in shelter belt from 5.91% in 1987 to 1.097% in 1995 and a shot up to 7.39% in 2006. About 37% of the respondent opined that the deforestation leads to the disappearance of trees while 33% pinioned that it leads to reduction on agricultural productivity. The major strategy adopted to combat desertification is tree planting as supported by 88% of the respondents. It found that desertification as major environmental problem of the study area has reduced drastically from 43.34% in 1976 to 1.29% in 2006. It was also revealed from this study that some organizations such as European Economic Community/Katsina State government EEC/KTSG, Katsina Afforestation Project Unit KTAPU and Local Government Councils are the major agencies that are responsible for mitigating desertification in the study area. Keywords: Desertification, Mitigation, Afforestation, Shelterbelt and Satellite image References Ariyo, J.A, Abdullahi, C.J. Stigter, O.Z Onyewotu and I. Musa (2005). Community Participation in Planning Desertification, Control Interventions in Northern Nigeria. Lessons from Kano State. A Paper Presented at the Conference on Prospects and Problems of Agricultural Development in Nigeria, Held in Ahmadu Bello University Zaria. June 29th – July 2nd, 2005. Auwal, U. (2006). An Appraisal of Desertification in Arid Zone of Bauchi State. Unpublished PGDEM thesis Department of Geography, Bayero University Kano. Babura, D.U. (2001). Desertifucation in Babura Local Government Area. Unpublished PGDEM Thesis. Department of Geography, Bayero University Kano. Bala, A. (2003). An Evaluation of Drought Incidence and Hazards in Northern Nigeria. A Paper Presented at a Seminar on the Conservation of the environment. Department of Geography Isa Kaita College of Education, Dutsinma, Katsina State 5th November. Bins, T. (1990). The Threatening Deserts: Ox Blackwell. Campbell, D.J (1986). The Prospects For desertification in Kajiado District Kenya, Geg. Federal Office of Statistics (1999). Annual Abstracts of Statistics: facts and Figures about Nigeria. Katsina Afforestation Project Unit (2006). A brief on Katsina Afforestation Project Unit (FGN ASSISTED) 1st February, 2006. Katsina Afforestation Project Unit (2006). Annual Reports on Afforestation Projects. Katsina Afforestation Project Unit (2009). Annual Reports on Afforestation Project. Katsina Afforestation Project Unit KTAPU. (2009). A brief on Katsina Afforestation Project Unit (FGN ASSITED) 5th February, 2009. Katsina Agricultural and Rural Development Authority KTARDA. (2006). Land Management\ Unit, Historical Background to soil conservation in Katsina State. Katsina Arid Zone Programme EEC/KTSG (1995). Soil Conservation Experience, A paper for KSACDP one day Soil conservation Strategy Workshop 14th December, 1995. Katsina Arid Zone Programme EEC/KTSG. (1995). Historical background of soil conservation efforts in Katsina State. Msafirri, F. (2009). Involving or not Involving Communities in strategies to combat Desertification and Drought in Kenya. Murtala S.K. (2003). An Analysis of the problems of desertification in Katsina local government area. An NCE project, Isa kaita College of Education Dutsin Ma, Katsina state. Nasiru, I.M. (2009). Combating Desertification and Drought in Nigeria. Daily Trust Monday, 25th. National Population Commission (2006). Federal Republic of Nigeria (2009), National Population Commission Official Gazette No2, Abuja 2nd February 2009 Vol 96. Njeru, J. (2005). Monitoring and Modelling crop growth, water use and production crop growth, water use and production under dry land environment, north west of mount Kenya. Nyong, A.O. and Kanoroglou, P.S (1999). The Influence of water resources and their locations on rural distribution in north eastern Nigeria. A journal of environmental sciences. Owen and Pickering (1997). Global environmental issues. Rutledge and New York. Sagua, V.O, Enabor, E.E, K.O P.R.O, Ojanuga A.V, Mortimore, M. and Kalu, A.E. (1987). Ecological Disasters in Nigeria. Drought and Desertification Federal Ministry of science and Technology Lagos. Sani, M. (1996). Evaluation of Desertification and its effects in Jibia local Government area of Katsina state. Unpublished PGDEM Thesis. Department of Geography Bayero University Kano. Shittu, K. (1999). An Assessment on the socio economic effects of desertification in Katsina state. An Unpublished BSC project Department of Geography Bayero University Kano. Stebbing, E.P. (1935). The Encroaching Sahara: The Threat to west Africa colonies. A geographical Journal. The United Nations Convention to Combat Desertification (1997). A new Response an age – old problem. United Nations Conversation on Desertification (1977). Desertification, it Causes and Consequences: Pergmon Press. United Nations, Department for Public Information (1997). The United Nations convention to combat desertification. Whates and Jones (1992). Land Degradation. Edward Arnold London. Copyright (c) 2019 Geosfera Indonesia Journal and Department of Geography Education, University of Jember This work is licensed under a Creative Commons Attribution-Share A like 4.0 International License

APA, Harvard, Vancouver, ISO, and other styles

18

Ibrahim, Najafi Auwalu, Rosli Mahmood, and Muhammad Shukri Bakar. "Strategic improvisation and HEIs performance: the moderating role of organizational culture." PSU Research Review 2, no. 3 (December 14, 2018): 212–30. http://dx.doi.org/10.1108/prr-01-2017-0009.

Full text

Abstract:

PurposeThis study aims to explore the relationships between strategic improvisation, organizational culture and higher education institutions (HEIs) performance. The dynamic nature of today’s environment, increased population and demand and budget cuts have created a lot of pressure on HEIs around the world. Hence, the need for effective human resource capable of providing advanced policies for efficiency and sustainability of these institutions.Design/methodology/approachA total of 229 questionnaires were filled and returned by academic leaders from HEIs in Kano state, Nigeria. The study used partial least squares path modelling to test the hypotheses postulated.FindingsThe major findings indicate that both strategic improvisation and organizational culture dimensions have direct relationship with HEIs performance. However, only innovative culture moderates the relationship between strategic improvisation and HEIs, while bureaucratic culture and supportive culture fail to support the proposed hypothesis.Research limitations/implicationsMore studies are needed to further validate the impact of strategic improvisation (SI) on other public sector performance. Also, future studies should use longitudinal approach to establish at which stage SI has more impact on performance. Also, future studies should identify the difference that exists between units, department and faculty leaders, as some are more likely to engage in SI due to the nature of their specialization.Practical implicationsIt is obvious that HEIs performance is not only limited to organizational factors but also individual characteristics such as ability to improvise. Hence, HEIs should consider SI ability during employment to ensure efficiency, performance and sustainability. Moreover, organizational culture of HEIs needs to be updated and to be more flexible in accommodating new initiatives or failure to encourage display of such ability.Originality/valuePrevious studies especially in the for profit sector have demonstrated the role of SI and organizational culture on performance. Thus, the present study is one of the early studies in the non-profit sector, specifically the HEIs. Moreover, the inconsistent result of the previous findings necessitates the study to test the moderating effect of organizational culture.

APA, Harvard, Vancouver, ISO, and other styles

19

Stach, Mathias, Stefan Heinzler, and Jürgen Pfeifer. "Der Digitale Zwilling kann auch steuern." Zeitschrift für wirtschaftlichen Fabrikbetrieb 116, no. 9 (September 1, 2021): 619–21. http://dx.doi.org/10.1515/zwf-2021-0103.

Full text

Abstract:

Abstract Der Digitale Zwilling ist im Kontext der digitalen Transformation über sämtliche Branchen hinweg nicht mehr wegzudenken. Die Verknüpfung von digitalen, semantischen Modellen mit realen Zustandsdaten verspricht zahlreiche Anwendungsfälle und Potenziale für die industrielle Nutzung und ist die Grundlage für eine effiziente Planung, Optimierung, Steuerung und Analyse einer wandelbaren und flexiblen Produktion in Echtzeit.

APA, Harvard, Vancouver, ISO, and other styles

20

Pakes, Chris I., Cameron J. Wellard, David N. Jamieson, Lloyd C. L. Hollenberg, Steven Prawer, Andrew S. Dzurak, Alex R. Hamilton, and Robert G. Clark. "Modelling of electrostatic gate operations in the Kane solid state quantum computer." Microelectronics Journal 33, no. 12 (December 2002): 1053–58. http://dx.doi.org/10.1016/s0026-2692(02)00110-6.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Hachisuka, K., K. Makino, F. Wada, S. Saeki, N. Yoshimoto, and M. Arai. "Clinical Application of Carbon Fibre Reinforced Plastic Leg Orthosis for Polio Survivors and its Advantages and Disadvantages." Prosthetics and Orthotics International 30, no. 2 (August 2006): 129–35. http://dx.doi.org/10.1080/03093640600574474.

Full text

Abstract:

A prospective study was carried out on the clinical application and features of a carbon fibre reinforced plastic leg orthosis (carbon orthosis) for polio survivors. The subjects comprised 9 polio survivors, and 11 carbon knee-ankle-foot orthoses (KAFOs) were prescribed, fabricated, and checked out at the authors' post-polio clinic. Walking was classified based on the functional ambulatory category, and the features of walking with a carbon orthosis were self-evaluated by using a visual analogue scale. The period from modelling a cast to completion was 55 ± 25 days; the weight of a carbon KAFO was 27.8% lighter than that of the ordinary KAFO; the standard carbon KAFO was 50% more expensive than the ordinary KAFO. The carbon KAFO remained undamaged for at least 2 years. It improved the scores in the functional ambulation categories, but there was no difference between walking with an ordinary and with a carbon KAFO. The self-evaluation of walking with a carbon KAFO revealed that the subjects using a carbon KAFO were satisfied with their carbon KAFO. The carbon KAFO is lightweight, durable, slim and smart, and is positively indicated for polio survivors.

APA, Harvard, Vancouver, ISO, and other styles

22

Pakes, C. I., V. Conrad, J. C. Ang, F. Green, A. S. Dzurak, L. C. L. Hollenberg, D. N. Jamieson, and R. G. Clark. "Modelling single-electron-transistor-based readout in the Kane solid-state quantum computer." Nanotechnology 14, no. 2 (January 10, 2003): 161–64. http://dx.doi.org/10.1088/0957-4484/14/2/312.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Exel, Dominik, Bernhard Zagar, Stefan Schuster, Vera Ganglberger, and Johann Reisinger. "Parameterschätzung und Cramér-Rao-Schranken bei der berührungslosen Temperaturmessung." tm - Technisches Messen 86, no. 1 (January 28, 2019): 45–56. http://dx.doi.org/10.1515/teme-2018-0059.

Full text

Abstract:

ZusammenfassungEine Herausforderung bei der berührungslosen Temperaturmessung an metallischen Oberflächen ist der veränderliche Emissionsgrad. Erschwerend kommt hinzu, dass dieser Emissionsgrad meistens unbekannt und nur schwer bestimmbar ist. Dieser Beitrag zeigt eine Methode auf, wie man aus Messdaten einer Multispektralkamera die Temperatur eines Objektes mit geringer Unsicherheit schätzen kann, ohne dabei den Emissionsgrad explizit zu kennen. Es werden zwei Modelle für den Emissionsgrad hinsichtlich ihrer Modellfehler bei der Temperaturmessung vergleichend untersucht. Basierend auf diesen Modellen und dem Planck’schen Strahlungsgesetz ergibt sich jeweils ein Separable Least-Squares-Problem über das die Objekttemperatur geschätzt werden kann. Dabei kann es sinnvoll sein, den unbekannten spektralen Emissionsgrad über einen mittleren Emissionsgrad in den Modellen zu berücksichtigen. Weiters werden die Cramér-Rao-Schranken für die Temperaturschätzung angegeben und mit realen Messdaten und Simulationen verifiziert.

APA, Harvard, Vancouver, ISO, and other styles

24

Vuksanović, Nemanja. "The significance and application of scenario modelling as the means of planning in education." Andragoske studije, no. 1 (2018): 105–21. http://dx.doi.org/10.5937/andstud1801105v.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Chen, Zhengsheng, Minxiu Kong, Chen Ji, and Ming Liu. "An efficient dynamic modelling approach for high-speed planar parallel manipulator with flexible links." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 229, no. 4 (June 27, 2014): 663–78. http://dx.doi.org/10.1177/0954406214538946.

Full text

Abstract:

An efficient dynamic modelling approach was presented for planar parallel manipulator with flexible links. To increase the accuracy of the model, an improved curvature-based finite element method (ICFE) was developed for discretisation of the flexible links. Then, a novel approach for analysis of the coupling between rigid-body motion and flexible-body motion was proposed, and compared to the regular geometrical method, the proposed method was accurate and easy to implement. With the aforementioned proposed methods, the Kane equation was integrated to formulate the dynamic model of a 3RRR planar parallel manipulator. Finally, comparison studies were performed to validate the proposed ICFE and the integrated dynamic modelling method. Compared to the regular curvature-based finite element method (CFE), the ICFE exhibits improved accuracy with equivalent degrees of freedom. Additionally, the proposed integrated dynamic model shows a good agreement with the Abaqus model. Therefore, it was concluded that the proposed dynamic modelling method herein was efficient and accurate for parallel manipulators with flexible links, demonstrating reasonable potentials for model based control.

APA, Harvard, Vancouver, ISO, and other styles

26

Nass, Elmar. "Führungsethik Sozialer Marktwirtschaft Ein systematischer Leitfaden für eine Mikro-Marko-Perspektive." Journal for Markets and Ethics 5, no. 2 (December 1, 2017): 67–82. http://dx.doi.org/10.2478/jome-2018-0006.

Full text

Abstract:

Abstract Ein Leitfaden wird als Modell vorgestellt, mit dessen Hilfe Führungsethik von Führungstheorie unterschieden und eine an den Wertegrundlagen Sozialer Marktwirtschaft orientierte Führungsethik identifiziert werden kann. Theoretische Konzepte lassen sich mit dieser Makro-Mikro-Perspektive daraufhin überprüfen, ob sie einen Verantwortungsdualismus von Effizienz- und Humanziel in der Führungskultur schlüssig bestimmen. Mithilfe von vorgeschlagenen Prinzipien und Perspektiven kann so in vier Schritten eine Führungsethik in der normativen Linie Sozialer Marktwirtschaft von davon abweichenden Modellen unterschieden werden.

APA, Harvard, Vancouver, ISO, and other styles

27

Askari, Mohsen, Jianchun Li, Bijan Samali, and Xiaoyu Gu. "Experimental forward and inverse modelling of magnetorheological dampers using an optimal Takagi–Sugeno–Kang fuzzy scheme." Journal of Intelligent Material Systems and Structures 27, no. 7 (September 15, 2015): 904–14. http://dx.doi.org/10.1177/1045389x15604403.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Nickchen, Tobias. "Mit neuronalen Netzen 3D-Modelle in Echtzeit beurteilen." VDI-Z 162, no. 11 (2020): 38–40. http://dx.doi.org/10.37544/0042-1766-2020-11-38.

Full text

Abstract:

Nicht alles, was denkbar ist, lässt sich auch umsetzen. Diese Erkenntnis gilt ebenfalls für die additive Fertigung. Ein Forschungsprojekt zeigt, wie die Produzierbarkeit von 3D-Modellen mit einem Deep-Learning-Ansatz bewertet werden kann.

APA, Harvard, Vancouver, ISO, and other styles

29

Mistrzyk, Tomasz, and Gerd Szwillus. "Modellierung sicherheitskritischer Kommunikation in Aufgabenmodellen (Modelling Safety-Critical Communication within Task Models)." i-com 7, no. 1/2008 (April 2008): 39–42. http://dx.doi.org/10.1524/icom.2008.0008.

Full text

Abstract:

ZusammenfassungDie Spezifikation von Aufgabenmodellen für sozio-technische Systeme bekommt besondere Bedeutung, wenn es um sicherheitskritische Systeme geht. Probleme bei der Kommunikation innerhalb derartiger Systeme wurden inzwischen als Hauptursache für das Entstehen sowohl kritischer Situationen als auch von Unfällen erkannt. In einem Forschungsprojekt haben wir eine Aufgabenmodellierungsumgebung entwickelt, die die speziellen Bedürfnisse derartiger Systeme ausdrück-lich berücksichtigt. Das Modell erlaubt die Spezifikation von Risikofaktoren, Barrieren und insbesondere auch des Informationsflusses zwischen einzelnen Aufgaben. In diesem Artikel stellen wir den Ansatz vor, mit spezieller Betonung der Kommunikationsvorgänge in Aufgabenmodellen. Wir zeigen auf, wie Kommunikation als orthogonale Struktur explizit formuliert werden kann, so dass deutlich wird, wie Kommunikation zur erfolgreichen Durchführung kooperativer Aufgaben beiträgt.

APA, Harvard, Vancouver, ISO, and other styles

30

Filipczuk, Magdalena. "Modelling “Self” through Writing – Lin Yutang as a Philosopher of the Art of Life." Synthesis philosophica 36, no. 1 (June 2, 2021): 23–38. http://dx.doi.org/10.21464/sp36102.

Full text

Abstract:

U radu rekonstruiram filozofijsku praksu Lina Yutanga i argumentiram da se njegova misao može tumačiti kao filozofija umjetnosti života. Ističem da je bit Linove filozofijske prakse umjetnost pisanja. Slično drugim filozofima umjetnosti života, Lin je umjetnik i filozof ujedno. Dakle, on sam središnja je tema njegovih eseja. U svojoj performativnoj umjetnosti, Lin konstruira svoje »sebstvo« i oblikuje model filozofijskog života duboko ukorijenjenog u tradiciju kineske kulture dokolice. Model svakodnevnog života kako ga predlaže Lin je, stoga, mišljen da nadahne čitatelja.

APA, Harvard, Vancouver, ISO, and other styles

31

Winter, L., and K. G. Kahl. "Stress, Burnout-Syndrom, Depression." Nervenheilkunde 33, no. 10 (2014): 699–703. http://dx.doi.org/10.1055/s-0038-1627730.

Full text

Abstract:

ZusammenfassungArbeit ist ein zentraler Begriff im Leben eines jeden Menschen, unabhängig davon, ob es sich um berufliche oder um haushaltsnahe Arbeit handelt. Arbeit kann eine Ressource sein, die die Anfälligkeit für psychische Störungen senkt; unter Umständen kann Arbeit ein chronischer Stressor sein, der das Risiko für psychische Störungen deutlich erhöht. Eine Reihe von Modellen wurde entwickelt, um diejenigen Faktoren zu identifizieren, die aus psychischen Belastungen psychische Störungen werden lassen. Modelle mit relativ hohem Erklärungswert sind das Anforderungs-Kontroll-Modell, das Modell der beruflichen Gratifikationskrisen und das Modell der Organisationsgerechtigkeit. Aus den Modellen können strategische Handlungsbereiche abgeleitet werden, die zu einem verbesserten Betriebsklima beitragen können. Aufgrund des in der Regel hohen zeitlichen Einsatzes von Arbeitnehmern in ihren Unternehmen ist es empfehlenswert, weitere Schritte in Richtung betrieblicher Prävention zu unternehmen. Neben Strategien zur Stärkung der körperlichen und mentalen Fitness sollte die Entwicklung eines wertschätzenden Führungsstils im Vordergrund stehen.

APA, Harvard, Vancouver, ISO, and other styles

32

Schalau, B., and S. Schalau. "Freistrahlmodellierung für geringe Austrittsgeschwindigkeiten/Jet modelling for low exit velocities." Technische Sicherheit 10, no. 06 (2020): 17–22. http://dx.doi.org/10.37544/2191-0073-2020-06-17.

Full text

Abstract:

Mit der zurzeit laufenden Überarbeitung der VDI Richtlinie 3783 Blatt 1 und dem Modellwechsel auf ein Lagrange‘sches Partikelmodell ist das Fahnenmodell PLURIS in den Fokus der Störfallauswirkungsberechnungen gelangt. PLURIS wird schon seit längerem zur Berechnung der Abgasfahnenüberhöhung von Schornsteinen und Kühltürmen eingesetzt und ist Grundlage der neuen VDI Richtlinie 3782 Blatt 3 (Entwurf). Im Gegensatz zu den bekannten Freistrahlmodellen zur Berechnung der Ausbreitung unter Druck stehender Gase, wird bei PLURIS nicht vorausgesetzt, dass die Strahlgeschwindigkeit deutlich größer als die Windgeschwindigkeit ist. Mit steigender Rechnerleistung wird auch die Gasausbreitungsberechnung mittels CFD-Programmen für die Praxis interessanter. Für eine genauere Berechnung der Geschwindigkeits- und Konzentrationsverteilung im Freistrahl wird eine feine Gitterauflösung erforderlich, die aber zu langen Rechenzeiten führt, wenn die Ausbreitung eines toxischen Gases in Entfernungen von mehreren 100 m berechnet werden soll. Durch die Kopplung der CFD-Berechnung mit einem Fahnen- oder Freistrahlmodell kann der Rechenaufwand reduziert werden.

APA, Harvard, Vancouver, ISO, and other styles

33

Schiekiera, Kirsten. "Füße weg von Clogs und Co!" kma - Klinik Management aktuell 19, no. 12 (December 2014): 54–55. http://dx.doi.org/10.1055/s-0036-1577568.

Full text

Abstract:

Pflegekräfte legen im Laufe eines einzigen Arbeitstags meist mehrere Kilometer Strecke zurück – da ist es wichtig, dass nichts drückt oder einengt. Wer gut beschuht den Klinikalltag durchstehen will, kann zwischen verschiedenen komfortablen Modellen wählen. Doch Vorsicht: Vom Tragen einiger Schuharten raten Experten dringend ab.

APA, Harvard, Vancouver, ISO, and other styles

34

Ernst, Andreas, and Karl-Heinz Simon. "Soziale Simulation als Werkzeug der transformativen Forschung." GAIA - Ecological Perspectives for Science and Society 30, no. 2 (July 15, 2021): 134–36. http://dx.doi.org/10.14512/gaia.30.2.14.

Full text

Abstract:

Lässt sich gesellschaftliches Verhalten ähnlich wie das Wetter vorhersagen? Daran arbeiten zumindest Sozialwissenschaftler(innen) mit computergestützten und datenbasierten Modellen. Sie versprechen sich von sozialen Simulationsmodellen, mögliche Zukünfte zu beschreiben und diese gegen in der Gesellschaft zu beobachtende Trends zu testen. Damit kann die Methode auch für Transformations- und transformative Forschung interessant sein.

APA, Harvard, Vancouver, ISO, and other styles

35

Müller, M. J., and A. Bosy-Westphal. "Langsam abnehmen, um das Gewicht zu halten?" Adipositas - Ursachen, Folgeerkrankungen, Therapie 09, no. 04 (2015): 217–20. http://dx.doi.org/10.1055/s-0037-1618938.

Full text

Abstract:

ZusammenfassungEmpfehlungen und Leitlinien vieler Länder sprechen sich für eine langsame Gewichtsreduktion aus, um einen nachhaltigeren Gewichtserhalt zu erreichen. Neue Studien zeigen jedoch, dass der Jo-Jo-Effekt unabhängig vom “Abnehmtempo” ist. Dennoch gibt es auch eine zu schnelle Gewichtsabnahme, die durch einen erhöhten Verlust an Magermasse gekennzeichnet ist, der wiederum ein Risiko für eine erneute Gewichtszunahme sein kann. Ein “gesundes Energiedefizit” ist daher wichtig und muss individuell berechnet werden, da es von der Ausgangskörperzusammensetzung, der körperlichen Aktivität und dem Proteinbedarf abhängt. Individuelle Empfehlungen für die Geschwindigkeit der Gewichtsreduktion sollten darüber hinaus die Phase der Gewichtsabnahme berücksichtigen. Der Therapieverlauf kann anhand von mathematischen Modellen von Gewichtsverläufen überprüft werden.

APA, Harvard, Vancouver, ISO, and other styles

36

Jäncke, Lutz. "Gibt es eine (Neuro)-Psychologie des Massenmörders?" Zeitschrift für Neuropsychologie 19, no. 1 (January 2008): 41–45. http://dx.doi.org/10.1024/1016-264x.19.1.41.

Full text

Abstract:

Im Rahmen dieses Essays wird diskutiert, ob das Morden oder gar der Massenmord anhand der Kenntnis neuropsychologischer Konzepte erklärt werden kann. Hierbei wird deutlich, dass es quasi jedem Erklärungsversuch für Mord und Massenmord schwer fallen wird, Mord oder Massenmord ohne Zuhilfenahme von konventionellen Regeln zu definieren. Demzufolge bleibt es auch schwierig, wenn nicht gar unmöglich, menschliches Verhalten, dass in Morde oder Massenmorde mündet, mit einfachen und eingängigen neuropsychologischen Modellen zu erklären. Es wird allerdings deutlich, dass das menschliche Gehirn mit einem höchst flexiblen und „lernfähigen“ sozialen Kontrollsystem ausgestattet ist, dass sich an verschiedene soziale Szenarien anpassen kann. Die hohe Anpassungsfähigkeit eröffnet allerdings auch Möglichkeiten für therapeutische und erzieherische Ansätze zur Verhaltensänderung.

APA, Harvard, Vancouver, ISO, and other styles

37

Obermann, Karl. "CAD/CAM- und PDM-Einführung gelungen." Konstruktion 71, no. 10 (2019): 52–54. http://dx.doi.org/10.37544/0720-5953-2019-10-52.

Full text

Abstract:

PDM kann man als einfache Datenbank in der Konstruktion einsetzen, für die Verwaltung von Modellen, Zeichnungen und Zusatzdokumenten. Oder man denkt es als umfassendes Datenverwaltungssystem für ein ganzes Unternehmen, sozusagen als PLM-System. Genau auf diesem anspruchsvollen Weg befindet sich die Baumann Maschinenbau Solms GmbH & Co. KG, die ihre CAD/CAM/PDM-Landschaft reorganisiert.

APA, Harvard, Vancouver, ISO, and other styles

38

Kurczyk, Sebastian, and Marek Pawelczyk. "Active Noise Control Using a Fuzzy Inference System Without Secondary Path Modelling." Archives of Acoustics 39, no. 2 (March 1, 2015): 243–48. http://dx.doi.org/10.2478/aoa-2014-0028.

Full text

Abstract:

Abstract For many adaptive noise control systems the Filtered-Reference LMS, known as the FXLMS algorithm is used to update parameters of the control filter. Appropriate adjustment of the step size is then important to guarantee convergence of the algorithm, obtain small excess mean square error, and react with required rate to variation of plant properties or noise nonstationarity. There are several recipes presented in the literature, theoretically derived or of heuristic origin. This paper focuses on a modification of the FXLMS algorithm, were convergence is guaranteed by changing sign of the algorithm steps size, instead of using a model of the secondary path. A TakagiSugeno-Kang fuzzy inference system is proposed to evaluate both the sign and the magnitude of the step size. Simulation experiments are presented to validate the algorithm and compare it to the classical FXLMS algorithm in terms of convergence and noise reduction.

APA, Harvard, Vancouver, ISO, and other styles

39

Bolliger, Stephan A., Sebastian Eggert, and Michael J. Thali. "Wundballistik – eine Kurzübersicht." Praxis 105, no. 3 (February 2016): 133–37. http://dx.doi.org/10.1024/1661-8157/a002248.

Full text

Abstract:

Zusammenfassung. Mittels experimentellem Beschiessen von synthetischen Modellen aus Gelatine, Glyzerinseife und Kunstknochen, validiert mit realen Befunden aus dem (kriegs-) chirurgischen und rechtsmedizinischen Fallgut untersucht die Wundballistik die munitionsspezifische Wirkung, also das Wundprofil, von Geschossen auf den Körper. Unter «Wundprofil» versteht man die Eindringtiefe, die Geschossdeformation/Fragmentation, den Durchmesser der temporären Wundhöhle und den Durchmesser der permanenten Wundhöhle. In Kenntnis dieser Merkmale und der verwendeten Munition kann ein Chirurg rasch abschätzen, wie gross die Verletzung im Inneren des Patienten sein wird. Der Rechtsmediziner kann aufgrund des Wundprofils Rückschlüsse auf die verwendete Munition ziehen. Des Weiteren erlaubt die Wundballistik eine Messung der Zerstörungskraft von verschiedenen Munitionstypen, was die Grundlage von Richtlinien zur Wirkungsbegrenzung von Kriegsmunition darstellt.

APA, Harvard, Vancouver, ISO, and other styles

40

Yanev, Emil. "Specific aspects of the retrofitting design and seismic assessment of a heritage pedestrian bridge." Gradjevinski materijali i konstrukcije 63, no. 4 (2020): 65–77. http://dx.doi.org/10.5937/grmk2004065y.

Full text

Abstract:

The purpose of this study is to establish a suitable structural system for the restoration of the destroyed part of the pedestrian bridge, which is a part of a hydrocomplex built along the Arda River (Bulgaria), and to improve the vulnerable details in the original structure, taking into account the seismic hazard on the site. The decision is also dictated by the choice of a construction method that does not interfere the Hydroelectric Power Plant (HPP) that is built along the river with the normal operation of which the subject is connected. The appropriate selection of materials and modelling of the overall behaviour of the old and new parts of the bridge are the basis of the optimal solution for interference with the structure and the possibility of extending its service life. It is also important to preserve the visual unity of the whole structural complex, thus preserving the original appearance and good construction practice from the time they have been built during the middle of the 20th century This design solution is part of an investment project of "Risk Engineering" Ltd.

APA, Harvard, Vancouver, ISO, and other styles

41

Shadoul, Myada, Hassan Yousef, Rashid Al Abri, and Amer Al-Hinai. "Adaptive Fuzzy Approximation Control of PV Grid-Connected Inverters." Energies 14, no. 4 (February 11, 2021): 942. http://dx.doi.org/10.3390/en14040942.

Full text

Abstract:

Three-phase inverters are widely used in grid-connected renewable energy systems. This paper presents a new control methodology for grid-connected inverters using an adaptive fuzzy control (AFC) technique. The implementation of the proposed controller does not need prior knowledge of the system mathematical model. The capabilities of the fuzzy system in approximating the nonlinear functions of the grid-connected inverter system are exploited to design the controller. The proposed controller is capable to achieve the control objectives in the presence of both parametric and modelling uncertainties. The control objectives are to regulate the grid power factor and the dc output voltage of the photovoltaic systems. The closed-loop system stability and the updating laws of the controller parameters are determined via Lyapunov analysis. The proposed controller is simulated under different system disturbances, parameters, and modelling uncertainties to validate the effectiveness of the designed controller. For evaluation, the proposed controller is compared with conventional proportional-integral (PI) controller and Takagi–Sugeno–Kang-type probabilistic fuzzy neural network controller (TSKPFNN). The results demonstrated that the proposed AFC showed better performance in terms of response and reduced fluctuations compared to conventional PI controllers and TSKPFNN controllers.

APA, Harvard, Vancouver, ISO, and other styles

42

Papies, Dominik, and Michel Clement. "Die Theorie des geplanten Verhaltens zur Ermittlung von Konsumentenpräferenzen bei Medieninnovationen." MedienWirtschaft 4, S (2007): 80–92. http://dx.doi.org/10.15358/1613-0669-2007-s-80.

Full text

Abstract:

Ein erprobter und gleichzeitig integrativer Ansatz zur Erklärung und Prognose von Verhalten ist die Theorie des geplanten Verhaltens, deren Anwendungsgebiet in diesem Beitrag auf Medieninnovationen ausgeweitet wird und als Erklärungsmodell zur Untersuchung der Adoptionsdeterminanten von Musikflatrates herangezogen wird. Es zeigt sich, dass die Theorie Konstrukte entwickelt hat, die auch für Medieninnovationen relevant sind und in anderen Modellen nicht unmittelbar enthalten sind. Mit ihrer Hilfe kann ein substanzieller Anteil der Varianz der Adoptionsabsicht erklärt werden. Des Weiteren kann gezeigt werden, dass die Adoptionsabsicht stark vom bisherigen Musiknutzungsverhalten abhängt und dass sich vor allem innovative Intensivnutzer von Musikflatrates im Internet angesprochen fühlen. Die Ergebnisse legen auch nahe, dass der Verfügbarkeit kompatibler mp3-Spieler eine zentrale Rolle bei der Durchsetzung dieser Innovation zukommt.

APA, Harvard, Vancouver, ISO, and other styles

43

Brecher, Christian, Thomas Bergs, Caroline Kiesewetter-Marko, Maximilian Schrank, Stephan Neus, and Jens Brimmers. "Prozess-Maschine-Interaktion des Verzahnungshonens/Process-machine-interaction for gear honing." wt Werkstattstechnik online 111, no. 05 (2021): 336–42. http://dx.doi.org/10.37544/1436-4980-2021-05-70.

Full text

Abstract:

Für die Endbearbeitung von Zahnrädern wird unter anderem das Verzahnungshonen eingesetzt. Die theoretisch erreichbare Maschinenleistung kann aufgrund auftretender Schwingungen eingeschränkt sein. In einem aktuellen Forschungsprojekt zur Abbildung der Prozess-Maschine-Interaktion beim Verzahnungshonen werden die Eigenschaften der Maschine und die Prozesskräfte berücksichtigt. In diesem Beitrag wird ein gekoppeltes Prozess-Maschine-Modell für das Verzahnungshonen vorgestellt.   One of the processes used for finishing gears is gear honing. The theoretically achievable machine performance can be limited due to occurring vibrations. A current research project for modelling the process-machine interaction in gear honing considers the characteristics of the machine and the process forces. This article presents a coupled process-machine model for gear honing.

APA, Harvard, Vancouver, ISO, and other styles

44

Yang, Jiashi, and Shaohua Guo. "On Using The Kane-Mindlin Theory in The Analysis Of Cracks in Plates." International Journal of Fracture 133, no. 2 (May 2005): L13—L17. http://dx.doi.org/10.1007/s10704-005-7119-1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Badrzadeh, Honey, Ranjan Sarukkalige, and A. W. Jayawardena. "Intermittent stream flow forecasting and modelling with hybrid wavelet neuro-fuzzy model." Hydrology Research 49, no. 1 (July 26, 2017): 27–40. http://dx.doi.org/10.2166/nh.2017.163.

Full text

Abstract:

Abstract In this paper, an advanced stream flow forecasting model is developed by applying data-preprocessing techniques on adaptive neuro-fuzzy inference system (ANFIS). Wavelet multi-resolution analysis is coupled with an ANFIS model to develop a hybrid wavelet neuro-fuzzy (WNF) model. Different models with different input selection and structures are developed for daily, weekly and monthly stream flow forecasting in Railway Parade station on Ellen Brook River, Western Australia. The stream flow time series is decomposed into multi-frequency time series by discrete wavelet transform using the Haar, Coiflet and Daubechies mother wavelets. The wavelet coefficients are then imposed as input data to the neuro-fuzzy model. Models are developed based on Takagi-Sugeno-Kang fuzzy inference system with the grid partitioning approach for initializing the fuzzy rule-based structure. Mean-square error and Nash-Sutcliffe coefficient are chosen as the performance criteria. The results of the application show that the right selection of the inputs with high autocorrelation function improves the accuracy of forecasting. Comparing the performance of the hybrid WNF models with those of the original ANFIS models indicates that the hybrid WNF models produce significantly better results especially in longer-term forecasting.

APA, Harvard, Vancouver, ISO, and other styles

46

Özkaya, E., S. Hannich, and D. Biermann. "Untersuchungen zum thermischen Fließbohren*/Investigations on thermal flow drilling – Three-dimensional modelling and simulation with experimental validation." wt Werkstattstechnik online 108, no. 10 (2018): 724–29. http://dx.doi.org/10.37544/1436-4980-2018-10-88.

Full text

Abstract:

In diesem Beitrag wird das Fließbohren von AlSi10Mg mit zwei unterschiedlichen Werkzeugtemperaturen untersucht. Für die Erzielung eines tieferen Prozessverständnisses wird ein dreidimensionales Modell aufgebaut und die Simulationsergebnisse mit den experimentellen Werten der Temperatur, Kraft sowie Drehmoment validiert. Im Vergleich zum nicht temperierten Werkzeug kann mit dem vorgeheizten Fließbohrer eine verbesserte Bohrungsqualität erreicht werden.   This paper investigates the flow drilling of AlSi10Mg with two different initial tool temperatures. To achieve a deeper understanding of the process, a three-dimensional model was developed and the simulation results were validated with experimentally determined values for temperature, force and torque. Compared to the non-heated tool, the pre-heated flow drill led to a better borehole quality.

APA, Harvard, Vancouver, ISO, and other styles

47

Kroll, Andreas. "On the State-Space Representation of Local Affine Models in Takagi–Sugeno–Kang Fuzzy Systems (Zur Zustandsdarstellung von Takagi–Sugeno–Kang-Fuzzy-Systemen mit Lokal Affinen Modellen)." at - Automatisierungstechnik 52, no. 10-2004 (October 2004): 470–80. http://dx.doi.org/10.1524/auto.52.10.470.44805.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Katona, Sebastian, and Michael Koch. "Verbesserung von Simulationsergebnissen durch Integration von Geometriemessdaten/Improving Simulation Results by Integrating Metrological Geometry Data." Konstruktion 70, no. 03 (2018): 70–74. http://dx.doi.org/10.37544/0720-5953-2018-03-70.

Full text

Abstract:

Inhalt: Zur Absicherung der Funktion und Sicherheit werden während der Produktentwicklung vielfach Simulationen durchgeführt. Diese basieren auf den konstruierten CAD-Modellen, welche die Nominalgeometrie repräsentieren, aber aufgrund von Fertigungsimperfektionen von der Realität abweichen. Die Integration von realen Messdaten in das Simulationsmodell kann hier Abhilfe schaffen, ist aber aufgrund der verschiedenen Datenstrukturen und Aufbereitung häufig zu zeit- und kostenintensiv. Der im Folgenden vorgestellte Prozess erleichtert und beschleunigt die Berücksichtigung von realen Geometrien in der Simulation deutlich.

APA, Harvard, Vancouver, ISO, and other styles

49

Cina, Annette, and Guy Bodenmann. "Zusammenhang zwischen Stress der Eltern und kindlichem Problemverhalten." Kindheit und Entwicklung 18, no. 1 (January 2009): 39–48. http://dx.doi.org/10.1026/0942-5403.18.1.39.

Full text

Abstract:

Die Bedeutung von Stress für die Entwicklung von Störungen in der Familie und beim Kind wird in verschiedenen theoretischen Modellen diskutiert. Es bestehen jedoch kaum empirische Arbeiten, welche die theoretischen Modelle in ihrer Gesamtheit überprüfen. Die Arbeit stellt Stress der Eltern in Verbindung zu kindlichem Problemverhalten dar, wobei wichtige innerfamiliäre Risikofaktoren wie das elterliche Erziehungsverhalten, die Kommunikation in Konflikten sowie das Befinden in das Modell integriert sind. Diese drei Variablen stellen zusammen die wichtigsten Prädiktoren von kindlichem Problemverhalten im familiären Rahmen dar. Das Modell wird anhand der Angaben von 255 Eltern überprüft. Die Ergebnisse zeigen, dass das Modell eine gute Aufklärung erreicht und damit bedeutsame Hinweise geben kann, wie Stress im komplexen System der Familie mit der Entwicklung der Kinder zusammenhängen kann. Insbesondere kovariiert Stress mit ungünstigen Erziehungshandlungen, die wiederum mit einem stärkeren Ausmaß an kindlichen Verhaltensproblemen assoziiert sind.

APA, Harvard, Vancouver, ISO, and other styles

50

Farina, Alexandre Bellegard, and Flávio Beneduce Neto. "Reply to comment on “Thermodynamic modelling of an system using the ionic model” by I.-H. Jung and Y.-B. Kang." Calphad 35, no. 2 (June 2011): 258–61. http://dx.doi.org/10.1016/j.calphad.2010.06.002.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Journal articles on the topic 'Kano modelling'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles