scholarly journals Defining the Main Parameters and Performances of the Elevator Motor

2021 ◽  
pp. 52-55
Author(s):  
Yurii Martynov ◽  
Oleksandr Petrenko ◽  
Borys Liubarskyi
Keyword(s):  
Frequency Converter ◽  
Measurement Data ◽  
Vertical Motion ◽  
Cost Effective ◽  
Scientific Paper ◽  
Rolling Stock ◽  
Motor Speed ◽  
Electromechanical Systems ◽  
Use Of Resources ◽  
Motor Test

Contemporary tendencies relentlessly dictate the conditions for the appearance of a more qualitative, reliable and comfortable elevator chain for the rolling stock of a vertical motion. At the same time, the issues of energy saving and cost-effective use of resources gain currency against the background of rising prices for energy carriers and market prices for various elements that play an essential role in the availability of many electromechanical systems. Unfortunately, attention was paid to the availability of above problems in the elevator sector when the majority of the elevators (about 60% of them) outlived their technical service life that ensured the reliable operation. As a matter of fact, an amazingly important issue is relating to the embedment of reliable, durable and economically substantiated components of electromechanical systems into contemporary Ukrainian elevators. The purpose of the research done was to define the main parameters and performances of the asynchronous elevator motor of an ADB180M6 type. The motor is powered from the industrial network of 50 Hz and the frequency converter with the frequency of 50Hz and 16.6 Hz. This scientific paper uses the methods of physical investigations. The elevator motor test data satisfy the reliability parameters that make any elevator user feel comfortable. The main measurement data obtained for the engine No43886 of an ADB180M6 type powered from the frequency converter “Altivar” of 22kW with the motor speed of 910 rpm and 289 rpm satisfy the requirements of the regulatory documentation. The noise level is within satisfactory margins.

Evaluation of the Cost Effectiveness of Therapist Computerized Entry of Occupational Therapy Workload Measurement Data

1995 ◽  
Vol 62 (2) ◽  
pp. 95-99 ◽  
Author(s):  
Mary Edwards ◽  
Mary Law ◽  
Barb Worth ◽  
Sue Baptiste
Keyword(s):  
Cost Effectiveness ◽  
Occupational Therapy ◽  
Measurement Data ◽  
Data Entry ◽  
Cost Effective ◽  
Monthly Data ◽  
Use Of Resources ◽  
Workload Measurement ◽  
Direct Input ◽  
The Cost

A study was conducted to examine the cost effectiveness of two methods of managing occupational therapy workload measurement data. The computer entry of statistical data by a clerk in a central location was compared to multi-site direct input of data by therapists. Cost effectiveness, efficiency and accuracy of each method were the primary outcomes. Ease of coordination and level of computer comfort were secondary outcomes. It was clear that clerk entry of data was more cost effective, efficient and accurate than therapist entry of data. The monitoring of monthly data entry was best facilitated by clerk entry. Therapists had a positive attitude towards direct entry but were unable to approximate the speed and accuracy of the data entry clerk. Therapists' comfort with computers increased slightly during the study. Since the prime purpose of the study was to examine cost effectiveness, it was concluded that clerk entry of workload data is the best use of resources.

MULTI-TONE WAVEFORM MEASUREMENT SYSTEM ENABLING CHARACTERIZATION OF MICROWAVE DEVICES

2014 ◽  
Vol 23 (10) ◽  
pp. 1450141
Author(s):  
MUHAMMAD AKMAL CHAUDHARY ◽  
JONATHAN LEES ◽  
JOHANNES BENEDIKT ◽  
PAUL TASKER
Keyword(s):  
Measurement System ◽  
Measurement Data ◽  
Quality Measurement ◽  
Cost Effective ◽  
Operating Conditions ◽  
Efficient Manner ◽  
Vector Error Correction ◽  
Sampling Oscilloscope ◽  
Rf Components ◽  
Vector Error

This paper presents a fully automated time domain, waveform measurement system, capable of measuring multi-tone waveforms up to a frequency of 14 GHz. Multi-tone waveform measurement capabilities will prove useful in enhancing the understanding of the response of devices under realistic operating conditions, and allow for detailed investigation into device problems leading to memory effects. The system, which is based around a standard sampling oscilloscope, is capable of measuring all four traveling waves simultaneously. It is a cost effective solution, capable of capturing high quality measurement data, it consists of two test sets one to measure RF components of the signal and one to measure IF components, which are then recombined before being measured by the sampling oscilloscope. Vector error correction is applied to the measured data to fully calibrate the system to the device plane, ensuring any dispersion in the connecting hardware is removed. A multi-tone waveform sampling method is employed, ensuring the waveforms are captured in the most efficient manner. Device results are presented showing the multi-tone voltage and current waveforms at the device plane. Some useful applications of the system are demonstrated and explained.

COST-EFFECTIVENESS OF EXERCISE PROGRAMS IN TYPE 2 DIABETES

2012 ◽  
Vol 28 (3) ◽  
pp. 228-234 ◽  
Author(s):  
Doug Coyle ◽  
Kathryn Coyle ◽  
Glen P. Kenny ◽  
Normand G. Boulé ◽  
George A. Wells ◽  
...  
Keyword(s):  
Type 2 Diabetes ◽  
Cost Effectiveness ◽  
Exercise Training ◽  
Exercise Program ◽  
Cost Effective ◽  
Exercise Programs ◽  
Combined Exercise ◽  
Use Of Resources ◽  
Life Years

Background: A randomized controlled trial has shown that supervised, facility-based exercise training is effective in improving glycemic control in type 2 diabetes. However, these programs are associated with additional costs. This analysis assessed the cost-effectiveness of such programs.Methods: Analysis used data from the Diabetes Aerobic and Resistance Exercise (DARE) clinical trial which compared three different exercise programs (resistance, aerobic or a combination of both) of 6 months duration with a control group (no exercise program). Clinical outcomes at 6 months were entered for individual patients into the UKPDS economic model for type 2 diabetes adapted for the Canadian context. From this, expected life-years, quality-adjusted life-years (QALYs) and costs were estimated for all patients within the trial.Results: The combined exercise program was the most expensive ($40,050) followed by the aerobic program ($39,250), the resistance program ($38,300) and no program ($31,075). QALYs were highest for combined (8.94), followed by aerobic (8.77), resistance (8.73) and no program (8.70). The incremental cost per QALY gained for the combined exercise program was $4,792 compared with aerobic alone, $8,570 compared with resistance alone, and $37,872 compared with no program. The combined exercise program remained cost-effective for all scenarios considered within sensitivity analysis.Conclusions: A program providing training in both resistance and aerobic exercise was the most cost-effective of the alternatives compared. Based on previous funding decisions, exercise training for individuals with diabetes can be considered an efficient use of resources.

Determining the optimal load capacities units of forestry rolling stock

2015 ◽  
Vol 5 (4) ◽  
pp. 97-102
Author(s):  
Макеев ◽  
Viktor Makeev
Keyword(s):  
Load Capacity ◽  
Scientific Paper ◽  
Rolling Stock ◽  
Optimum Load ◽  
Optimal Load ◽  
Load Unit ◽  
Time Optimal ◽  
The Cost ◽  
Cost Of Transportation

Improving the efficiency of freight transport and industrial processes of forest complex is of great importance in the production activities of its business depends on many factors. The most important factor is the choice of the type operated by forestry staff and capacity of its units. In a scientific paper delivered and successfully solved the problem of determining the optimum load capacity of rolling stock unit forestry given distance transportation of timber cargo and average technical speed of vehicles in the transportation of timber cargo. At the same time optimal load unit Forestry rolling stock is determined by the conditions at the lowest cost to transport certain types of timber cargo and operational performance logging train (short log). The formula determining the cost of transportation of one ton (1 m3) timber cargo, which was the basis for the determination of the optimum load capacity of logging trucks. For greater clarity of how the optimal load on the logging train hauling timber (timber assortments) of the distance transportation, ways to perform loading and unloading operations and technical speed on the example of existing timber companies (Kulikovskii forestry) built a graph.

Surface Variation Modeling by Fusing Surface Measurement Data With Multiple Manufacturing Process Variables

2016 ◽  
Author(s):  
Jie Ren ◽  
Hui Wang
Keyword(s):  
High Precision ◽  
Spatial Data ◽  
Measurement Data ◽  
Cost Effective ◽  
Surface Shape ◽  
Surface Measurement ◽  
Process Variables ◽  
Process Information ◽  
Surface Variation ◽  
Sampled Measurements

Controlling surface shape variations plays a key role in high-precision manufacturing. Most manufacturing plants rely on a number of multi-resolution measurements on manufactured surfaces to evaluate surface shapes and resultant quality. Conventional research on surface shape modeling focused on interpolation and extrapolation of spatial data using sampled measurements based on presumed spatial relationship over entire surface locations. However, the prediction accuracy is heavily restricted by the density of sampled measurements, preventing cost-effective evaluation of surface shape in high precision. New opportunities emerge for cost-effective high-precision surface manufacturing when the industry begins to extensively collect in-plant process information. This paper explores the opportunity by investigating strategies for fusing surface measurement data with multiple process variables. The fusion is achieved by characterizing the relationships between surface height and process variables using (1) linear regression based co-Kriging and (2) fuzzy if-then rules as well as considering spatial correlations. Under (3) Bayesian sequential updating frameworks, a generic surface variation model is updated sequentially using different process information. Case studies are conducted for comparisons and demonstrate the advantages of the fuzzy inference based spatial model.

A Scalable Data Platform for Cloud Computing Systems

2014 ◽  
Vol 577 ◽  
pp. 860-864
Author(s):  
Liang Liu ◽  
Tian Yu Wo
Keyword(s):  
Cloud Computing ◽  
Web Applications ◽  
Cost Effective ◽  
Computing Systems ◽  
Cluster Architecture ◽  
Geographically Dispersed ◽  
Use Of Resources ◽  
Asynchronous Replication ◽  
Time Period ◽  
Data Platform

With cloud computing systems becoming popular, it has been a hotspot to design a scalable, highly available and cost-effective data platform. This paper proposed such a data platform using MySQL DBMS blocks. For scalability, a three-level (system, super-cluster, cluster) architecture is applied, making it scalable to thousands of applications. For availability, we use asynchronous replication across geographically dispersed super clusters to provide disaster recovery, synchronous replication within a cluster to perform failure recovery and hot standby or even process pair mechanism for controllers to enhance fault tolerance. For resource utility, we design a novel load balancing strategy by exploiting the key property that the throughput requirement of web applications is flucatuated in a time period. Experiments with NLPIR dataset indicate that the system can scale to a large number of web applications and make good use of resources provided.

scholarly journals Haemophilia A: Pharmacoeconomic Review of Prophylaxis Treatment versus On-Demand

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Brigid Unim ◽  
Maria Assunta Veneziano ◽  
Antonio Boccia ◽  
Walter Ricciardi ◽  
Giuseppe La Torre
Keyword(s):  
English Language ◽  
Cost Effective ◽  
Primary Prophylaxis ◽  
Secondary Prophylaxis ◽  
Economic Evaluations ◽  
Haemophilia A ◽  
On Demand ◽  
Use Of Resources ◽  
Medium Quality ◽  
Methodological Aspects

Objectives. Haemophilia A is a congenital disorder of coagulation that mainly affects males and causes a considerable use of resources, especially when hemophilic patients are treated with prophylaxis. The aim of the present review was to discuss and appraise the methodological aspects and results of published economic evaluations of haemophilia A treatments in the last decade.Methods. The literature search, performed by consulting four engines, covered studies published between 2002 and 2014. Full economic evaluations published in English language were identified and included in the review. A quality assessment of the studies was also carried out based on Drummond’s checklist.Results. After careful evaluations of the identified records, 5 studies were reviewed. Primary and secondary prophylaxis resulted cost-effective compared to on-demand therapy: the ICER of primary prophylaxis ranged from €40.236 to €59.315/QALY gained, while the ICER of secondary prophylaxis was €40.229/QALY gained. Furthermore, 60% were high quality and 40% were medium quality studies.Conclusions. The review underlines the cost-effectiveness of prophylaxis versus on-demand treatment and the different methodological approaches applied. Further economic evaluations are required with models that reflect the clinical reality and consumption of resources in each country.

scholarly journals The cost‑effectiveness of hypertonic saline inhalations for infant bronchiolitis.

2020 ◽  
Author(s):  
jefferson buendia ◽  
Ranniery Acuña-Cordero
Keyword(s):  
Cost Effectiveness ◽  
Cost Effective ◽  
Decision Makers ◽  
Hypertonic Solution ◽  
Cost Effectiveness Ratio ◽  
Tropical Country ◽  
Total Cost ◽  
Use Of Resources ◽  
Lower Total Cost ◽  
The Cost

Abstract BackgroundPharmacological treatment for bronchiolitis is primarily supportive because bronchodilators, steroids, and antibiotics, show little benefit. Clinical studies have suggested that nebulized 3% hypertonic solution is useful for infants with bronchiolitis. This study aims to evaluate the cost-effectiveness of the HS inhalations in infant bronchiolitis in a tropical country Methods Decision tree analysis was used to calculate the expected costs and QALYs. All cost and use of resources were collected directly from medical invoices of 193 patient hospitalized with diagnosis of bronchiolitis in tertiary centers, of Rionegro, Colombia. The utility values applied to QALYs calculations were collected from the literature. The economic analysis was carried out from a societal perspective.ResultsThe model showed that nebulized 3% hypertonic solution, was associated with lower total cost than controls (US $200vs US $240 average cost per patient), and higher QALYs ( 0.92 vs 0.91 average per patient); showing dominance. A position of dominance negates the need to calculate an incremental cost-effectiveness ratio.Conclusion The nebulized 3% hypertonic solution was cost-effective in the inpatient treatment of infant bronchiolitis. Our study provides evidence that should be used by decision-makers to improve clinical practice guidelines and should be replicated to validate their results in other tropical countries.

scholarly journals Assessing the impact of free-roaming dog population management through systems modelling

2021 ◽  
Author(s):  
Lauren M. Smith ◽  
Rupert J. Quinnell ◽  
Conor Goold ◽  
Alex M. Munteanu ◽  
Sabine Hartmann ◽  
...  
Keyword(s):  
Wildlife Conservation ◽  
Cost Effective ◽  
Fertility Control ◽  
Population Management ◽  
Population Increase ◽  
Use Of Resources ◽  
Efficient Reduction ◽  
Cost Efficient ◽  
Responsible Ownership ◽  
The Impact

AbstractFree-roaming dogs can present significant challenges to public health, wildlife conservation, and livestock production. Their own welfare may also be a concern, as free-roaming dogs can experience poor health and welfare. Dog population management is widely conducted to mitigate these issues. To ensure efficient use of resources, it is critical that effective, cost-efficient, and high-welfare strategies are identified. The dog population comprises distinct subpopulations characterised by their restriction status and level of ownership, but the assessment of dog population management often fails to consider the impact of the interaction between subpopulations on management success. We present a system dynamics model that incorporates an interactive and dynamic system of dog subpopulations. We identify that methods incorporating both fertility control and responsible ownership interventions (a reduction in abandonment and an increase in shelter adoptions) have the greatest potential to reduce free-roaming dog population sizes over longer periods of time, whilst being cost-effective and improving overall welfare. We suggest that future management should be applied at high levels of coverage and should target all sources of population increase, such as abandonment, births, and free-roaming owned dogs, to ensure effective and cost-efficient reduction in free-roaming dog numbers.

scholarly journals The cost-effectiveness of hypertonic saline inhalations for infant bronchiolitis

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Jefferson Antonio Buendía ◽  
Ranniery Acuña-Cordero
Keyword(s):  
Cost Effectiveness ◽  
Cost Effective ◽  
Decision Makers ◽  
Hypertonic Solution ◽  
Cost Effectiveness Ratio ◽  
Tropical Country ◽  
Total Cost ◽  
Use Of Resources ◽  
Lower Total Cost ◽  
The Cost

Abstract Background Pharmacological treatment for bronchiolitis is primarily supportive because bronchodilators, steroids, and antibiotics, show little benefit. Clinical studies have suggested that nebulized 3% hypertonic solution is useful for infants with bronchiolitis. This study aims to evaluate the cost-effectiveness of the HS inhalations in infant bronchiolitis in a tropical country. Methods Decision tree analysis was used to calculate the expected costs and QALYs. All cost and use of resources were collected directly from medical invoices of 193 patient hospitalized with diagnosis of bronchiolitis in tertiary centers, of Rionegro, Colombia. The utility values applied to QALYs calculations were collected from the literature. The economic analysis was carried out from a societal perspective. Results The model showed that nebulized 3% hypertonic solution, was associated with lower total cost than controls (US $200vs US $240 average cost per patient), and higher QALYs (0.92 vs 0.91 average per patient); showing dominance. A position of dominance negates the need to calculate an incremental cost-effectiveness ratio. Conclusion The nebulized 3% hypertonic solution was cost-effective in the inpatient treatment of infant bronchiolitis. Our study provides evidence that should be used by decision-makers to improve clinical practice guidelines and should be replicated to validate their results in other tropical countries.

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