scholarly journals QUANTITATIVE COMPARISON OF THE EFFICIENCY OF THE COLOR PROXIMITY CRITERIA OF OBJECTS WITH KNOWN SPECTRA

Author(s):  
Alexey Galuza ◽  
Olga Kostiuk ◽  
Alla Savchenko ◽  
Anastasiia Boiko

The work is devoted to the problem of comparing objects by color. The following statement of the problem is considered: among the set of objects it is necessary to find such an object, the color of which is most similar to the color of the given object. It is assumed that for each object only its spectrum (transmission, reflection, radiation) is known, which is an exhaustive characteristic of the color of the object. In addition, the spectrum of the radiation source is assumed to be known. The use of standard methods for determining color differences has shown that the problem does not have an unambiguous solution. Two approaches to its solution have been proposed: the first is based on the transition from the spectrum to color spaces with the subsequent calculation of the Euclidean distance, and the second is based on a direct comparison of the spectra as functional dependences of the intensity on the wavelength. Within each of the approaches, two criteria for the "similarity" of objects in color are proposed, and an original approach to assessing the effectiveness of these criteria is proposed. This approach is based on the use of expert assessments of the color proximity of glass samples with known transmission spectra from a standard set. For each sample from the set, experts selected the glass closest in color from the remaining ones, after which a generalized opinion of experts was formed. To obtain an assessment of the quality of each of the criteria, for each of them and for each test glass, the remaining samples were ranked in order of increasing color distance to the given test glass. After that, the results of the criteria were compared with the generalized opinion of experts. To make the comparison result "fuzzy", for each test glass it was proposed to consider a set of five glasses closest in color (for each of the criteria). The resulting estimates of the effectiveness of each of the criteria for a set of 89 glasses are obtained and an approach to the construction of more effective complex criteria is proposed.

2014 ◽  
Vol 1 (1) ◽  
pp. 47-56 ◽  
Author(s):  
Jan Basche

While calling for culturally sensitive healthcare services in migrant communities, the international nursing literature on intercultural care predominantly describes nursing staff as lacking cultural competences and immigrant customers as lacking cleverness to navigate the labyrinths of national healthcare systems. Congruences in language, culture and religion in the customer-caregiver relationship can decisively improve the quality of care. However, they do not automatically guarantee smooth working processes in monocultural in-home settings. On the contrary, new problems occur here for Turkish caregivers which are unknown to the legions of native professionals who feel challenged by migrants and which go beyond differences such as age, sex, income or education. While no cultural or religious brokering is necessary between customers and personnel in the given context in Germany, new challenges arise when caregivers are expected to legally broker between customers and insurance companies or doctors. Conflicting expectations of customers and management as well as their own colliding social and professional roles put the caregivers in a quandary and must be competently managed.


Author(s):  
Lea Christy Restu Kinasih ◽  
Dewi Fatimah ◽  
Veranica Julianti

The selection and determination of appropriate learning strategies can improve the results to be obtained from the application of classroom learning models. This writing aims to discipline students to develop individual abilities of students to be more active in the learning process and improve the quality of learning. The learning process in Indonesia in general only uses conventional learning models that make students passive and undeveloped. In order for the quality of learning to increase, the Team Assisted Individualization learning model is combined with the task learning and forced strategies. The Team Assisted Individualization cooperative learning model is one of the cooperative learning models that combines learning individually and in groups. Meanwhile, task and forced learning strategies are strategies that focus on giving assignments that require students to complete them on time so that the learning process can run effectively. Students are required to do assignments according to the given deadline. This makes students become familiar with the tasks given by the teacher. Combining or modifying the learning model of the assisted individualization team with forced and forced learning strategies is expected to be able to make students more active, disciplined, independent, creative in learning and responsible for the tasks assigned. Therefore this method of incorporation is very necessary in the learning process and can be applied to improve the quality of learning in schools.


2021 ◽  
Author(s):  
Toni Wäfler ◽  
Rahel Gugerli ◽  
Giulio Nisoli

We all aim for safe processes. However, providing safety is a complex endeavour. What is it that makes a process safe? And what is the contribution of humans? It is very common to consider humans a risk factor prone to errors. Therefore, we implement sophisticated safety management systems (SMS) in order to prevent potential "human failure". These SMS provide an impressive increase of safety. In safety science this approach is labelled "Safety-I", and it starts to be questioned because humans do not show failures only. On the contrary, they often actively contribute to safety, sometimes even by deviating from a procedure. This "Safety-II" perspective considers humans to be a "safety factor" as well because of their ability to adjust behaviour to the given situation. However, adaptability requires scope of action and this is where Safety-I and Safety-II contradict each other. While the former restricts freedom of action, the latter requires room for manoeuvring. Thus, the task of integrating the Safety-II perspective into SMS, which are traditionally Safety-I based, is difficult. This challenge was the main objective of our project. We discovered two methods that contribute to the quality of SMS by integrating Safety-II into SMS without jeopardizing the Safety-I approach.


2018 ◽  
Vol 2018 ◽  
pp. 1-13 ◽  
Author(s):  
Erin K. McMurtrie ◽  
Suzanne D. Johanningsmeier

Commercial cucumber fermentation produces large volumes of salty wastewater. This study evaluated the quality of fermented cucumbers produced commercially using an alternative calcium chloride (CaCl2) brining process. Fermentation conducted in calcium brines (0.1 M CaCl2, 6 mM potassium sorbate, equilibrated) with a starter culture was compared to standard industrial fermentation. Production variables included commercial processor(n=6), seasonal variation (June–September, 2 years), vessel size (10,000–40,000 L), cucumber size (2.7–5.1 cm diameter), and bulk storage time (55–280 days). Cucumber mesocarp firmness, color, bloater defects, pH, and organic acids were measured. Complete lactic acid fermentation was achieved, resulting in terminal fermentation pH values of 3.23 ± 0.09 and 3.30 ± 0.12 for CaCl2and NaCl processes, respectively. On average, CaCl2brined, fermented cucumbers were 1.8 N less firm, which remained significant in the finished product(P<0.0001). Color differences evidenced by higher hue and lower chroma values(P<0.0269)were consistent with increased photooxidation in CaCl2brined cucumbers. Commercial implementation of CaCl2brines for cucumber fermentation in open tanks variably resulted in texture and color defects that can impact product quality. Additional research is needed to understand the atypical softening observed at the commercial scale and identify process controls for quality improvements.


Author(s):  
Pifu Zhang ◽  
Caiming Zhang ◽  
Fuhua (Frank) Cheng

Abstract A method to scale and deform a trimmed NURBS surface while holding the shape and size of specific features (trimming curves) unchanged is presented. The new surface is formed by scaling the given surface according to the scaling requirement first; and then attaching the (original) features to the scaled NURBS surface at appropriate locations. The attaching process requires several geometric operations and constrained free-form surface deformation. The resulting surface has the same features as the original surface and same boundary curves as the scaled surface while reflecting the shape and curvature distribution of the scaled surface. This is achieved by minimizing a shape-preserving objective function which covers all the factors in the deformation process such as bending, stretching and spring effects. The resulting surface maintains a NURBS representation and, hence, is compatible with most of the current data-exchange standards. Test results on several car parts with trimming curves are included. The, quality of the resulting surfaces is examined using the highlight line model.


2018 ◽  
Vol 157 ◽  
pp. 07010
Author(s):  
Beáta Pecušová ◽  
Mariana Pajtášová ◽  
Zuzana Mičicová ◽  
Darina Ondrušová ◽  
Andrea Feriancová ◽  
...  

The given paper deals with the study of the properties of clay minerals, namely montmorillonite and moreover, it is focused on effect of these clay minerals on the curing characteristics of the polymer blends and the physical-mechanical properties of prepared vulcanizates. Montmorillonite is a major clay mineral which has a wide application in many industrial branches. It belongs to the group of dioctahedral smectite minerals with structural type in the ratio of 2:1. Characteristics of prepared modified and organomodified clay minerals are based on sulphur vulcanisation accelerators which are used for the preparation of real polymer blend where they represent a partial replacement of the common carbon black filler and then, the effect on the curing characteristics of polymer blends as well as physical-mechanical properties of the prepared vulcanizates are investigated. The results exhibit that the clay-based filler (modified and organomodified clay minerals) can be used as a partial replacement while the quality of the prepared blends is preserved.


Author(s):  
Yutong Wang ◽  
Jiyuan Zheng ◽  
Qijiong Liu ◽  
Zhou Zhao ◽  
Jun Xiao ◽  
...  

Automatic question generation according to an answer within the given passage is useful for many applications, such as question answering system, dialogue system, etc. Current neural-based methods mostly take two steps which extract several important sentences based on the candidate answer through manual rules or supervised neural networks and then use an encoder-decoder framework to generate questions about these sentences. These approaches still acquire two steps and neglect the semantic relations between the answer and the context of the whole passage which is sometimes necessary for answering the question. To address this problem, we propose the Weakly Supervision Enhanced Generative Network (WeGen) which automatically discovers relevant features of the passage given the answer span in a weakly supervised manner to improve the quality of generated questions. More specifically, we devise a discriminator, Relation Guider, to capture the relations between the passage and the associated answer and then the Multi-Interaction mechanism is deployed to transfer the knowledge dynamically for our question generation system. Experiments show the effectiveness of our method in both automatic evaluations and human evaluations.


2019 ◽  
Vol 72 (5) ◽  
pp. 1029-1032
Author(s):  
Lubov V. Hryhorenko ◽  
Volodymyr M. Baibakov ◽  
Iryna A. Zayats ◽  
Mykhailo V. Solomenko ◽  
Oleksandr A. Romanenko

Introduction: Intestinal parasites are important enteric pathogens. Poverty, low quality of food and water supply and poor sanitation systems are the important factors associated with intestinal parasitic infections. These kinds of infections can be a good index for hygienic and sanitation status of the society. The aim: To study dynamics of infectious and parasitic diseases (for 2008-2013 years) among the children population in Dnipro region and to define influence of water factor on the disease and prevalence given class of illnesses. Materials and methods: Retrospective study of infectious and parasitogenic diseases (І class by ICD-10) among children population from rural districts of Dnipropetrovsk region for 2008-2013 years was carried out. Results: It was spent correlation analysis between some indicators of potable water quality of diseases of the given class in all districts. In the majority of rural districts, was shown increasing І class of diseases from (1.4 to 1.63) times in dynamics. In some districts was reveled an average correlation link between content in water of the dry residue, chlorides, sulphates, calcium, magnesium, except rigidity and iron and prevalence І class of diseases (r=0.50, p<0.001). Prevalence of the given class of diseases was correlated with рН, nitrates, oxidability in the three rural districts of Dnipropetrovsk region (r=0.74-0.89, p<0.001). Conclusions: It has been shown that the composition of drinking water consumed by the rural population remains one of the basic factors in the formation of public health in the conditions of small exposure of the influence individual indicators of salt and chemical composition. The children’s cohorts were the most sensitive to these indicators.


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