scholarly journals INVESTIGATIONS ON THE GEOMETRIC QUALITY OF CAMERAS FOR UAV APPLICATIONS USING THE HIGH PRECISION UAV TEST FIELD ZOLLERN COLLIERY

2019 ◽  
Vol XLII-2/W13 ◽  
pp. 531-538 ◽  
Author(s):  
H.-J. Przybilla ◽  
M. Gerke ◽  
I. Dikhoff ◽  
Y. Ghassoun
Keyword(s):  
High Performance ◽  
Cost Effective ◽  
Test Field ◽  
Camera System ◽  
Software Products ◽  
Significant Difference ◽  
Effective System ◽  
Geometric Quality ◽  
Definition Of

<p><strong>Abstract.</strong> The geodetic-photogrammetric test field at the industrial monument Zollern colliery in Dortmund offers a scenario for carrying out geometric and radiometric tests of UAV systems. The foundation for this builds a geodetic precision network (position and height accuracy approx. 2&amp;thinsp;mm) with a total of 45 ground control points, distributed over an area of approx. 7 hectares. Within the scope of a campaign carried out in autumn 2017, various UAV sensor systems were tested under comparable conditions. Within this paper geometric investigations of two current DJI cameras, Zenmuse X4S (20 Mpix) and X5S (20.8 Mpix), as well as a Phase One IXU 1000 (100 Mpix) are presented. While the Zenmuse cameras reflect the current state of development of the manufacturer DJI, the medium format camera system from Phase One is primarily settled in the classic aerial segment. However, the desire for increased measurement accuracy (e. g. for engineering applications) also makes such a high-performance sensor interesting for UAV applications.<br />In addition to the configuration of the test field, the system comparison requires identical parameters for flight planning, in particular image overlapping, a complete cross flight configuration at different flight altitudes and the definition of a uniform ground resolution (GSD&amp;thinsp;=&amp;thinsp;14&amp;thinsp;mm).</p><p>The investigations show clear differences in the achievable quality of the cameras. Though the high-priced Phase One system shows the best results, the most cost-effective system, the Zenmuse X4S, delivers only slightly worse results. In contrast, the Zenmuse X5S performs significantly worse than the other systems, mainly resulting from the mechanically unstable camera concept with interchangeable lenses. Finally, the comparison of the software products Pix4D Pix4Dmapper, Inpho UASMaster by Trimble and Agisoft PhotoScan partly shows significant differences in the results of image orientation. In particular in settings with sparse GCP usage the results vary considerably, indicating different strategies on how the residuals are distributed and the datum is defined, mostly Pix4Dmapper outperforms the others. In better GCP configurations there is no significant difference between Pix4mapper and Agisoft PhotoScan, while UASMaster does never deliver the best results.</p>

scholarly journals Real time Implementation of Face Recognition System on Raspberry Pi

2018 ◽  
Vol 7 (2.17) ◽  
pp. 85
Author(s):  
K Raju ◽  
Dr Y.Srinivasa Rao
Keyword(s):  
Face Recognition ◽  
High Performance ◽  
Recognition Rate ◽  
Cost Effective ◽  
Recognition System ◽  
Raspberry Pi ◽  
Face Recognition System ◽  
Effective System ◽  
Face Detection And Recognition ◽  
Improved Accuracy

Face Recognition is the ability to find and detect a person by their facial attributes. Face is a multi dimensional and thus requires a considerable measure of scientific calculations. Face recognition system is very useful and important for security, law authorization applications, client confirmation and so forth. Hence there is a need for an efficient and cost effective system. There are numerous techniques that are as of now proposed with low Recognition rate and high false alarm rate. Hence the major task of the research is to develop face recognition system with improved accuracy and improved recognition time. Our objective is to implementing Raspberry Pi based face recognition system using conventional face detection and recognition techniques such as A Haar cascade classifier is trained for detection and Local Binary Pattern (LBP) as a feature extraction technique. With the use of the Raspberry Pi kit, we go for influencing the framework with less cost and simple to use, with high performance. 

scholarly journals SOFTWARE PRODUCT AND PROCESS ASSESSMENT THROUGH PROFILE-BASED EVALUATION

2003 ◽  
Vol 13 (05) ◽  
pp. 495-512 ◽  
Author(s):  
MAURIZIO MORISIO ◽  
IOANNIS STAMELOS ◽  
ALEXIS TSOUKIAS
Keyword(s):  
Evaluation Model ◽  
Process Assessment ◽  
Process Maturity ◽  
Single View ◽  
Software Products ◽  
Software Product ◽  
Product And Process ◽  
Definition Of

Software entities (software products or processes) are characterized by many attributes, each one in its turn can be measured by one or more measures. In several cases the software entities have to be evaluated as a whole, thus raising the problem of aggregating measures to give an overall, single view on the software entity. This paper presents a method to aggregate measures, which works by comparing the product/process with predefined, ideal entities, or profiles. Profiles are defined starting from ranges of values on measures of attributes. The method is based on two main phases, namely definition of the evaluation model and application of the evaluation model. It is presented through a simplified case study that deals with evaluating the level of quality of an asset to decide whether to accept it in a reuse repository. A plausible way of how the method could be applied to process maturity assessment is also provided. The advantages of the method are that it allows using ordinal scales, while it deals explicitly with preferences expressed, implicitly or explicitly, by the evaluator.

Nonconventional Materials (NOCMAT) for Ecological and Sustainable Development

MRS Advances ◽  
2016 ◽  
Vol 1 (53) ◽  
pp. 3553-3564 ◽  
Author(s):  
Khosrow Ghavami ◽  
Arash Azadeh
Keyword(s):  
High Performance ◽  
Human Life ◽  
Natural Fibers ◽  
Construction Materials ◽  
Cost Effective ◽  
Ongoing Research ◽  
Vegetable Fibers ◽  
The People ◽  
Important Challenge

ABSTRACTFour decades of advanced research about Non-Conventional Materials and Technologies (NOCMAT) such as bamboo and composites reinforced with natural fibers have shown that it is now possible to produce and use high performance NOCMAT. Bamboo and composites reinforced with vegetable fibers are capable, meeting most engineering demand in terms of strength, stiffness, toughness and energy absorption capability. The greatest challenge of the 21st century is the need for cost-effective, durable and eco-friendly construction materials that will meet the global needs of infrastructure regeneration and rehabilitation which alone can enhance the quality of life for all the people of the world. This paper summarizes some results of judicious combination of different matrix reinforced with vegetable fibers, especially bamboo. These sustainable ecological materials are strong, ductile and capable of absorbing large amounts of energy. They could find extensive applications in the engineering particularly in developing countries. Specifically, the development of durable composites reinforced with vegetable fibers and bamboo poses an important challenge to the science and skills of engineering. This challenge could create the most useful, eco-friendly construction materials backed by an endless supply of renewable natural resources. In addition the paper presents results of some ongoing research concerning bamboo and how vegetable fibers such as hemp plant, before the invention of Nylon was the most used materials in all aspects of human life around the globe and why it was banned.

Physicochemical assessment of branded and generic linezolid injection from different pharmaceutical manufacturers

2020 ◽  
Vol 16 ◽  
Author(s):  
Su-hua Zhang ◽  
Shan-shan Wei ◽  
Zhen-yu Zhu ◽  
Ying Chen ◽  
Hua-lin Cai ◽  
...  
Keyword(s):  
High Performance ◽  
Control Method ◽  
Ph Value ◽  
Freezing Point ◽  
Generic Drugs ◽  
Treatment Options ◽  
Related Impurities ◽  
Insoluble Particles ◽  
Significant Difference

Background: Up to date, generic linezolid injections produced by Chinese manufacturers were not widely used in clinic in China. Quality evaluation of linezolid injections produced in China is prerequisite, which has rarely been performed. Objective: This study aimed to evaluate the quality of branded and generic injections from different manufacturers and to provide a basis for the quality control. Methods: In this study, the content of linezolid, related impurities and enantiomer of linezolid were determined by high performance liquid chromatography. The content of glucose was determined by iodine method. The insoluble particles and visible and sub-visible particles were determined by light blockage and lamp test respectively. Osmotic pressure was determined by freezing point depression method. Standard solution control method was used to check the color of the injection. Linezolid injections from different manufacturers were evaluated uniformly. Results: No significant difference was found in the content of linezolid, glucose, related impurities, visible particles, insoluble particles, pH value, and solution color between branded and generic drugs from different manufacturers in China. Conclusion: The quality of samples from different manufacturers is consistent. Although the physicochemical similarity does not guarantee the bioequivalence of studied branded and generic linezolid injections, the results provide references for further bioequivalence study. Generic injections offer more affordable treatment options for patients with infections than expensive branded drugs.

Influence of Breastfeeding on The Early Aged Children’s Health and Ql Indicators

2021 ◽  
Author(s):  
Marina Ararat Mardiyan ◽  
Siranush Ashot Mkrtchyan ◽  
Razmik Ashot Dunamalyan ◽  
Karine Hrant Simonyan ◽  
Hayk Vachagan Harutyunyan
Keyword(s):  
Quality Of Life ◽  
Cost Effective ◽  
Health Condition ◽  
Significant Difference ◽  
One Year ◽  
Duration Of Breastfeeding ◽  
The Cost ◽  
Effective Public Health ◽  
The Given

Abstract Background: Promotion and coverage of breastfeeding are considered to be the cost-effective public health measures in terms of Healthcare System. The aim of the research is to assess an influence of breastfeeding on infants’ health and quality of life (QL) parameters.Methods: This observational prospective study included 1790 newborns selected from Yerevan State Medical University’s Polyclinics (“Mouratsan” (sample=746) and “Heratsi” ” (sample=1044)). Data collection took a period between January 2016 and December 2017. Evaluation of children’s quality of life was performed with the help of the validated and adapted QUALIN questionnaire. The data related to child’s health condition were collected from the “Child Development History” cards available at the polyclinics of the investigated area.Results: Among 1770 one year old children 1681 were ever breastfed, 1224 (69.1%) were exclusively breastfed up to 3 months, the median duration of breastfeeding was 6 -7 months, 45% ≥ 6 months, 15% ≥ 1 year. There is a significant difference between the QL scores of the ever breastfed and the never breastfed subgroups. Duration of the breastfeeding also have an influence on QL scores.Conclusions: The given study’s results confirm that breastfeeding among the early aged Armenian children is of great importance in their health, influencing on quality of life and morbidity rates.

Deviation saddles for cables bridges: development and qualification ofstay cable technology

2019 ◽  
Author(s):  
Julien-Erdem Erdogan ◽  
Ivica Zivanovic ◽  
Matthieu Guesdon
Keyword(s):  
Corrosion Protection ◽  
High Performance ◽  
Cost Effective ◽  
Stay Cable ◽  
Stay Cables ◽  
Accurate Definition ◽  
High Performance Fiber ◽  
Definition Of ◽  
Bridge Aesthetics ◽  
Cable Stayed Bridges

<p>Deviation saddles for cables are regularly used in projects such as cable stayed bridges, suspended bridges or extradossed bridges. The choice of a deviation saddle may be imposed to improve the bridge aesthetics with a slender pylon and to simplify the construction with a solid pylon section. Saddles are a proper anchorage and must be designed such as to ensure a safe transfer of vertical forces and of differential forces of stay cables into the pylon structure.</p><p>For parallel strand cables, since grouted stay cable tends to disappear from commonly accepted design and technologies, due to corrosion protection and fatigue issues, the most widely used concept of saddle is made of a battery of individual tubes, placed inside a guide pipe poured of concrete.</p><p>The most recent saddle system developed consists in allowing the passage of the strands through the saddle without individual tubes. Strands go directly through concrete recesses within the Ultra High Performance Fiber Concrete (UHPFC) matrix. Recesses are made thanks to reusable rubber bars removed after poured concrete is hardened. Thanks to an optimized cross section of the recesses, individual holes maximize the friction between the concrete and specially sheathed strands with local application of a cohesive sheathing (Cohestrand®), which allow strands to transfer important asymmetrical loads to the saddle without sliding. Meanwhile, a continuous corrosion protection is ensured by the strand sheathing from one deck anchorage to the other.</p><p>This make the use of saddle a cost-effective and durable mean to deviate and anchor parallel strand cables, that suits Owners needing simple but robust design for stay cable or extradossed bridges. Such saddle bridge design is nowadays clearly described in the 7<span>th</span> edition of the PTI recommendations, that specifies the qualification process of saddle technologies, especially in regards to the accurate definition of a minimum friction coefficient.</p>

scholarly journals Quality of Life Assessment in Patients with Multiple Sclerosis Receiving Interferon Beta-1a: A Comparative Longitudinal Study of Avonex and Its Biosimilar CinnoVex

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
R. Abolfazli ◽  
A. Hosseini ◽  
Kh. Gholami ◽  
M. R. Javadi ◽  
H. Torkamandi ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Multiple Sclerosis ◽  
Longitudinal Study ◽  
Physical Health ◽  
Interferon Beta ◽  
Cost Effective ◽  
Life Assessment ◽  
Significant Difference ◽  
Composite Scores

Background. Multiple sclerosis (MS) is an autoimmune inflammatory disease of central nervous system (CNS). MS affects quality of Life (QOL) due to physical disability and other associated problems. Disease-modifying agents like interferon beta (IFNB) have been widely utilized in this patient population; however, their frequency, route of administration, side effects, high cost, and also the question of whether they are truly beneficial for longer-term outcomes and QOL need to be further investigated. Objectives. To assess QOL in patients with multiple sclerosis receiving interferon beta-1a (Avonex or CinnoVex) and in order to compare QOL in groups receiving Avonex and CinnoVex, respectively, also, to evaluate whether the more cost-effective biosimilar form of IFNB (CinnoVex) has the same effect on QOL and can be substituted for Avonex. Methods. We conducted a 30-month, nonrandomized longitudinal study and recruited a total of 92 patients diagnosed with relapsing-remitting MS. The patients were distributed in Avonex and CinnoVex groups with 46 patients in each group. Quality of life was assessed by means of MSQOL-54 questionnaire, four times a year, at baseline and at months 4, 8, and 12 of the study. Results. Mean age ± SD was 30.5 ± 8.9 and 32.3 ± 9.0 years in Avonex and CinnoVex groups, respectively, and P value of gender was different (P value : 0.036). The physical health composite scores were 61.8 and 59.8 (P values 0.677 and 0.884) for Avonex and CinnoVex groups, in that order. The results of the study revealed no significant difference between the two groups with regard to physical health, health perception, energy, and role limitations due to physical problems, pain, sexual and social function, and physical health distress scores. Further, interferon therapy did not significantly impact patients’ QOL after a year of treatment with either Avonex or CinnoVex. Conclusions. According to the present study, treatment with IFNB (Avonex or CinnoVex) did not affect QOL during a year of therapy. Further studies with longer follow-up periods are required to assess the value of interferons on long-term outcomes and patient’s QOL.

Challenges and issues in the development of the human healthcare system

2021 ◽  
pp. 1-12
Author(s):  
Zhichao Huang
Keyword(s):  
Healthcare System ◽  
Network Performance ◽  
Cost Effective ◽  
Performance Ratio ◽  
Sensitivity Ratio ◽  
Effective System ◽  
Accuracy Ratio ◽  
Integrated Delivery ◽  
Human Healthcare

The social health care system is a single-stop solution for overseas patients seeking worldwide. Human is linked to globally certified healthcare companies, clinics, dental centers, and allows patients to access the best medical care. The significant challenges in developing the human healthcare system include efficiency, security, and sustainable medical devices linked to the Internet. A healthcare system usually includes different intelligent technologies from various disciplines. This manuscript proposed a Virtual reality-based Integrated delivery model (VRIDS) for the healthcare system to minimize the challenges. This paper uses Exclusive Provider Organizations’ methods, Point-of-Service methods, for developing the human health system. VRIDS provides a Higher quality of care with more efficiency in tracking the body’s movements to view the human’s inner body and allow an immersion sensation. Finally, results from various patients and doctors are highly recommended in these techniques to improve the human healthcare system and a cost-effective system and convenience to patients and doctors. The experimental results have been performed, and the suggested VRIDS model enhances the accuracy ratio of 97.8%, sensitivity ratio of 98.2%, decision-making level 96.5%, network performance ratio of 97.1%, and quality of service of 98.3% compared to other existing methods.

scholarly journals A Data-Driven Approach for Video Game Playability Analysis Based on Players’ Reviews

Information ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 129
Author(s):  
Xiaozhou Li ◽  
Zheying Zhang ◽  
Kostas Stefanidis
Keyword(s):  
Video Games ◽  
Video Game ◽  
Binary Classification ◽  
Game Studies ◽  
Data Driven ◽  
Software Products ◽  
Data Driven Approach ◽  
Definition Of

Playability is a key concept in game studies defining the overall quality of video games. Although its definition and frameworks are widely studied, methods to analyze and evaluate the playability of video games are still limited. Using heuristics for playability evaluation has long been the mainstream with its usefulness in detecting playability issues during game development well acknowledged. However, such a method falls short in evaluating the overall playability of video games as published software products and understanding the genuine needs of players. Thus, this paper proposes an approach to analyze the playability of video games by mining a large number of players’ opinions from their reviews. Guided by the game-as-system definition of playability, the approach is a data mining pipeline where sentiment analysis, binary classification, multi-label text classification, and topic modeling are sequentially performed. We also conducted a case study on a particular video game product with its 99,993 player reviews on the Steam platform. The results show that such a review-data-driven method can effectively evaluate the perceived quality of video games and enumerate their merits and defects in terms of playability.

scholarly journals Evaluation of efficacy and safety of terbinafine and itraconazole in superficial mycoses: a prospective, randomized, controlled and cost-effective analysis study

2020 ◽  
Vol 9 (8) ◽  
pp. 1222
Author(s):  
D. Aruna ◽  
M. Padmaja ◽  
S. P. Vijayalakshmi
Keyword(s):  
Cost Effective ◽  
Clinical Score ◽  
Study Groups ◽  
Fungal Culture ◽  
Open Label ◽  
Superficial Mycoses ◽  
Significant Difference ◽  
The Mean

Background: Superficial mycoses are common worldwide. Dermatophytic infections can greatly affect quality of life. Several newer antimycotic agents, have been reported effective and safe. Hence this study was planned to analyse effectiveness as well as cost effectiveness of these treatments.Methods: It were a prospective, randomized, parallel, open label, comparative study. Fifty patients were included in the study and divided into 2 groups. They were randomized to receive either oral terbinafine 250 mg or itraconazole 100 mg once daily for 4 weeks. Scaling, erythema and pruritus were rated as clinical score 0 to 3: 0 - absent, 1 - mild, 2 - moderate, and 3 - severe for the above three target symptoms. Total symptom score was assessed. Pruritus was also graded on visual analogue scale (VAS). Mycological cure was assessed by skin scraping with KOH mounts and fungal culture. Clinical efficacy scoring and VAS were assessed before the study and at each follow up visit at 2 and 4 weeks. Patients were followed up for another 4 weeks after completion of the treatment.Results: There was highly significant decrease p<000.1 in the mean total symptoms scores in both the study groups from baseline. No significant difference in the mean total symptoms score was observed when compared between groups. ADRs were more in terbinafine group.Conclusions: Both terbinafine and itraconazole are effective and safe against superficial mycoses, but adverse effects are more with terbinafine. Itraconazole was found to be cost effective compared to terbinafine.

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