scholarly journals Avaliação ocupacional quantitativa das temperaturas extremas em um laboratório acadêmico: os reflexos da exposição para a saúde dos trabalhadores

2019 ◽  
Vol 1 (44) ◽  
pp. 79
Author(s):  
Mayslane De Sousa Gomes ◽  
Brígida Monteiro Gualberto Montenegro ◽  
Daliane De Almeida Alves ◽  
Renata Paiva Da Nóbrega Costa
Keyword(s):  
Heat Exposure ◽  
Measurement Instrument ◽  
Education Institution ◽  
Tolerance Limit ◽  
Extreme Temperatures ◽  
Tolerance Limits ◽  
Environmental Evaluation ◽  
A Value ◽  
Wide Range ◽  
Environmental Agents

<p>Every day occupational diseases incapacitate thousands of workers in a wide range of activities causing problems which vary from temporary retirements until death The diseases usually start when there is exposure to physical environmental agents above tolerance limits such as: extreme temperatures (cold and heat) present in food laboratories. In this context, this study aimed to analyze the occupational exposure to extreme temperatures in an academic milk processing laboratory of a Public Education Institution. The methodology used a descriptive, quantitative approach. Data collection used the environmental measurement instrument A recommended Thermal Stress Measure for evaluation of heat exposure Humidity Bulb Index – Globe Thermometer (IBUTG), based on the Tolerance Limits proposed by NR 15 and environmental evaluation of the cold through the ACGIH Tolerance Limit Table. The result obtained for the evaluation of the heat was of an average IBUTG of 30.075 for yoghurt production, below the tolerance limit proposed by NR 15. In order to evaluate the cold, a value of 8 ºC was obtained and the temperature range could be considered acceptable by the ACGIH for a 1 hour and 40 minutes intercalated journey.</p>

scholarly journals Overview of the Tolerance Limit Calculations with Application to TSURFER

Energies ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 7092
Author(s):  
Hany Abdel-Khalik ◽  
Dongli Huang ◽  
Ugur Mertyurek ◽  
William Marshall ◽  
William Wieselquist
Keyword(s):  
New Technologies ◽  
National Laboratory ◽  
Integrated Approach ◽  
Tolerance Limit ◽  
Nuclear Industry ◽  
Mathematical Methods ◽  
Tolerance Limits ◽  
Regulatory Requirement ◽  
Oak Ridge ◽  
Wide Range

To establish confidence in the results of computerized physics models, a key regulatory requirement is to develop a scientifically defendable process. The methods employed for confidence, characterization, and consolidation, or C3, are statistically involved and are often accessible only to avid statisticians. This manuscript serves as a pedagogical presentation of the C3 process to all stakeholders—including researchers, industrial practitioners, and regulators—to impart an intuitive understanding of the key concepts and mathematical methods entailed by C3. The primary focus is on calculation of tolerance limits, which is the overall goal of the C3 process. Tolerance limits encode the confidence in the calculation results as communicated to the regulator. Understanding the C3 process is especially critical today, as the nuclear industry is considering more innovative ways to assess new technologies, including new reactor and fuel concepts, via an integrated approach that optimally combines modeling and simulation and minimal targeted validation experiments. This manuscript employs intuitive, analytical, numerical, and visual representations to explain how tolerance limits may be calculated for a wide range of configurations, and it also describes how their values may be interpreted. Various verification tests have been developed to test the calculated tolerance limits and to help delineate their values. The manuscript demonstrates the calculation of tolerance limits for TSURFER, a computer code developed by the Oak Ridge National Laboratory for criticality safety applications. The goal is to evaluate the tolerance limit for TSURFER-determined criticality biases to support the determination of upper, subcritical limits for regulatory purposes.

Path Integral Calculations of Particle Self-Energy and Effective Mass in Coulomb Systems

1997 ◽  
Vol 11 (04) ◽  
pp. 129-138 ◽  
Author(s):  
V. Sa-Yakanit ◽  
V. D. Lakhno ◽  
Klaus Haß
Keyword(s):  
Effective Mass ◽  
Path Integral ◽  
State Energy ◽  
Coulomb Systems ◽  
Integral Approach ◽  
Coupling Region ◽  
Self Energy ◽  
Consistent Approximation ◽  
A Value ◽  
Wide Range

The generalized path integral approach is applied to calculate the ground state energy and the effective mass of an electron-plasmon interacting system for a wide range of densities. It is shown that in the self-consistent approximation an abrupt transition between the weak coupling and the strong coupling region of interaction exists. The transition occurs at low electron densities according to a value of 418 for rs, when Wigner crystallization is possible. For densities of real metals, the electron bandwidth is calculated and a comparison with experimental results is given.

scholarly journals Framing the Values of Vernacular Architecture for a Value-Based Conservation: A Conceptual Framework

2021 ◽  
Vol 13 (9) ◽  
pp. 4974
Author(s):  
Obafemi A. P. Olukoya
Keyword(s):  
Vernacular Architecture ◽  
Conservation Strategy ◽  
Participatory Process ◽  
Value Assessment ◽  
A Value ◽  
Wide Range ◽  
Flexible Framework ◽  
Value Model ◽  
Contextual Values ◽  
Range Of Values

While a growing number of researchers have provided series of tough critiques of the typology-led heritage value assessment over the recent years, the impacts have been constrained by the continued obsession with expanding the list of the predetermined value typologies rather than escaping its limitations. While these sustained debates have provided important insights, this article argues that operationalizing these predetermined ‘one-size-fits-all’ value typologies is symptomatic of a number of shortcomings, especially in the context of capturing the pluralities of values in contextualized heritage such as vernacular architecture. It also often undermines inclusivity and participation in the valuing processes. However, rather than simply rejecting the values-based paradigm, this article proposes a conceptual value assessment framework that is informed by the theorization of vernacular architecture as a contextualized heritage. The proposed Vernacular Value Model (VVM) puts forward the ‘when(s)’ and ‘how(s)’ of amalgamating both technical and normative processes to capture the range of contextual values present in built vernacular heritage. To this end, this article posits that by drawing on such a proposed flexible framework, the conservation strategy for built vernacular heritage can be propagated as an inclusive and participatory process which captures the wide range of values for a more sustainable practices for conservation.

scholarly journals The effect of enriched cyclopoid copepods on the coloration and feeding rate of Betta splendens

2021 ◽  
Vol 869 (1) ◽  
pp. 012007
Author(s):  
A Yuslan ◽  
N Nasir ◽  
H Suhaimi ◽  
A Arshad ◽  
N W Rasdi
Keyword(s):  
Rice Bran ◽  
Feeding Rate ◽  
Effective Means ◽  
B Value ◽  
Proximate Analysis ◽  
Betta Splendens ◽  
A Value ◽  
Wide Range ◽  
Significant Difference ◽  
L Value

Abstract Copepods with a wide range of sizes, species, and nutritional compositions are preferred as live food for rearing of Betta splendens larvae. This research focuses on evaluating the efficiency of copepod enrichment diets in improving the coloration and feeding rate of B. splendens. Copepod were enriched with Chlorella sp. (T1), capsicum (T2), mixed vegetable (carrot + spinach), (T3), yeast (T4) and rice bran (T5) in 24 hours prior the feeding tests. As a result, proximate analysis of enriched-copepods showed that T1 (70.88±0.41) has highest protein content and T5 (22.01±0.59) has the highest lipid content. The specific growth rate and survival rate of B. splendens was highest in the treatment T1 (2.56±0.07%; 91.11±1.92%) and followed closely by T3 (2.49±0.51%; 85.55±8.39%). Feeding rate, T3 (70.08±3.88%) presented highest rate compared to other treatments. The different enrichment diets used were significantly impact the coloration test on body of L* value (P=0.001, P<0.05), T3 (66.11±3.60) appeared darker in color in contrast to others. As for a* value, the coloration was not impacted with the use of different enrichment on copepods (P=0.158, P>0.05) was detected for T1 (2.84±0.73) that gave a redder shade than other treatments did. T3 (2.40±0.30) exerted a more yellowish shade than the rest for b* value with a significant difference (P=0.015, P<0.05). The current study demonstrates that, rice bran, capsicum and mixed vegetable enrichment (carrot and spinach) have the potential to be an effective means of increasing B. splendens coloring and feeding rate. This potential diet can be further used as a substitution to artificial foods in producing sustainable culture of ornamental fish in the aquaculture industry.

scholarly journals APPLICATION OF CLOUD TECHNOLOGY POSSIBILITIES AS A COMMUNICATION ENVIRONMENT PLATFORM IN SCIENTIFIC ACTIVITY OF HIGHER EDUCATION INSTITUTION

2021 ◽  
Author(s):  
Olena Ponomaryova ◽  
◽  
Sergy Ponomaryiov ◽  
Keyword(s):  
Cloud Computing ◽  
Education Institution ◽  
Developed Countries ◽  
Scientific Activity ◽  
Ease Of Use ◽  
Cloud Services ◽  
Successful Implementation ◽  
Cloud Infrastructure ◽  
Communication Environment ◽  
Wide Range

The current problem of transition to the use of "Cloud Computing" in the process of assessing possible use has been reflected in this study. Assessments of the capabilities of cloud services have been conducted, which are part of a group study of cloud computing as a platform for creating a communication environment in the scientific activities of the Free Economic Zone. The essence of the concept of cloud computing is to provide end users with remote dynamic access to services, computing resources and applications via the Internet. The main possibilities and functions of the information space of scientific communications have been considered. In the process of evaluating the possible use of cloud solutions, the main properties, capabilities and characteristics have also been considered. Web-services based on cloud computing technology in terms of meeting the goals of the scientific community have been analyzed. The most widely used and widely used cloud storage services today that can be used to build a research communication platform are cloud infrastructure providers Google, Amazon and Microsoft. When using the capabilities of these services, favorable conditions are created for the translation of all necessary functions into cyberspace. Today, no more than 37% of domestic organizations actually use cloud technologies to optimize their IT infrastructures, although the COVID-19 pandemic has significantly accelerated this process. Experts claim that Cloud Computing opens access to powerful resources, as well as provides a real opportunity to overcome the technological gap that separates Ukraine from more developed countries. With the successful implementation of such a transition, it is possible to organize a platform of communication environment with new features that meet modern requirements for safety and ease of use in scientific activities. Thus, "cloud computing" is a new approach that reduces the complexity of IT systems, through the use of a wide range of efficient technologies, self-managed and available on demand within the virtual infrastructure, as well as consumed as services.

scholarly journals ANALISIS TINGKAT KETEPATAN WAKTU KRL COMMUTER LINE LINTAS TANAH ABANG-RANGKASBITUNG (STUDI KASUS: STASIUN CISAUK)

2020 ◽  
Vol 3 (3) ◽  
pp. 625
Author(s):  
Giovanni Bintang ◽  
Dewi Linggasari ◽  
Hokbyan Angkat
Keyword(s):  
Urban Areas ◽  
Research Method ◽  
Gap Analysis ◽  
Field Studies ◽  
Individual Characteristics ◽  
Tolerance Limit ◽  
Green Line ◽  
Tolerance Limits ◽  
Online Surveys ◽  
Delay Tolerance

Commuter Line trains are one of the modes of transportation that are very popular with the Jabodetabek community. KRL Commuter Line is capable of reducing the level of congestion in urban areas, so it is expected that the KRL Commuter Line is able to meet the needs of the community with punctuality in performance. This study’s purpose is to identify the timeliness of Green Line KRL departures by scheduling it and classify the level of Green Line KRL departure delays and determine solutions that can be applied to reduce the level of KRL Green Line departure. The research method used to collect data by online surveys and field studies. Then analyzed with Gap Analysis in order to obtain information about individual characteristics, characteristics of travel, and perceived delays according to KRL Green Line users. From the results of the analysis, it was found that KRL users have 3 late tolerance limits according to the Ministerial Regulation set a delay tolerance limit of 5 minutes while the results of the perception of KRL users on the Green Line lane tolerance limit of 5 minutes and finally according to KRL users at Cisauk Station tolerate delays by 10 minutes.  ABSTRAKKereta Commuter Line adalah salah satu moda transportasi yang sangat diminati masyarakat Jabodetabek. KRL Commuter Line juga dinilai mampu mengurangi tingkat kemacetan di perkotaan, sehingga diharapkan KRL Commuter Line mampu memenuhi kebutuhan masyarakat dengan ketepatan waktu dalam kinerjanya. Tujuan penelitian ini adalah untuk mengindentifikasi ketepatan waktu keberangkatan KRL Green Line dengan penjadwalannya serta mengklasifikasikan tingkat keterlambatan keberangkatan KRL Green Line dan menentukan solusi yang dapat diterapkan untuk mengurangi tingkat keterlambatan keberangkatan KRL Green Line. Metode Penelitian yang digunakan untuk mengumpulkan data adalah dengan survey online dan studi lapangan. Lalu dianalisis dengan Gap Analysis agar didapatkan informasi mengenai karateristik individu, karateristik perjalanan, dan persepsi keterlambatan menurut pengguna  KRL Green Line. Dari hasil analisis, didapat bahwa pengguna KRL mempunyai 3 batasan toleransi keterlambatan yaitu menurut Peraturan Menteri ditetapkan batas toleransi keterlambatan sebesar 5 menit sedangkan hasil dari persepsi pengguna KRL jalur Green Line batas toleransi keterlambatan sebesar 5 menit dan yang terakhir menurut pengguna KRL di Stasiun Cisauk menoleransikan keterlambatan sebesar 10 menit.

scholarly journals Peran Kepala Sekolah Dalam Mengembangkan Mutu Budaya Organisasi

2018 ◽  
Vol 2 (2) ◽  
pp. 407
Author(s):  
ZM Abid Mohammady
Keyword(s):  
Organizational Culture ◽  
Field Research ◽  
Education Institution ◽  
Quality Of Education ◽  
A Value ◽  
Qualitative Descriptive ◽  
The Impact

Abstract: In the context of Indonesia, the quality of education seems to be something taboo to talk about, however, according to researchers the quality of education in Indonesia is very apprehensive. It is necessary for the role of headmaster and special efforts in developing a quality education institution through organizational culture as a value system that is understood, imbued, run jointly by members of the organization as a system of meaning or guidance for the organizers. This study aims to describe the three roles and impacts role of the headmaster role in developing the quality of organizational culture, they are: (1) the role of the headmaster as a manager; (2) the role of the headmaster as the educator; (3) the role of the headmaster as the supervisor; 4) The impact of the headmaster's role in developing the quality of organizational culture quality at SDMT Ponorogo. This research is categorized into a field research with qualitative descriptive approach and the research design was case study. The setting of study was at SDMT Ponorogo.  The findings showed that (1). The role of headmaster as manager encompasses conducting internal and external analysis, internalizing the Islamic value that is kemuhamadiyahan value. (2). The role of the headmaster as an educator includes involving educators in upgrading, workshops or training in order to provide opportunities for educators to improve their knowledge and skills by learning to the higher education, conducting cadre to members of organizational culture and creating jargon to motivate members of organizational culture. (3). The role of the headmaster as a supervisor comprises overseeing and Evaluating the performance and achievement of members of organizational culture, conducting weekly, monthly and semester meetings, monitoring achievements of educators and learners. (4) The impact of the school headmaster's role in developing the quality of organizational culture is organizational culture climate becomes harmonious and schools achieve more attainments.Abstrak: Dalam konteks Indonesia, mutu pendidikan seolah-olah menjadi barang yang tabu untuk diperbicangkan, dalam konteks tersebut kualitas pendidikan di Indonesia sangat memperihatinkan. Untuk itu diperlukan peran kepala sekolah dan Upaya khusus dalam mengembangkan sebuah mutu lembaga pendidikan melalui budaya organisasi sebagai sistem nilai yang dipahami, dijiwai, dijalankan secara bersama oleh anggota organisasi sebagai sistem makna atau pedoman bagi pelaku organisasi. Penelitian ini bertujuan untuk mendeskripsikan dan menjelaskan tiga peran serta dampak peran  kepala sekolah dalam mengembangkan mutu budaya organisasi, yaitu: (1) Peran kepala sekolah sebagai Manajer, (2) Peran kepala sekolah sebagai Educator, (3) Peran kepala sekolah sebagai supervisor, dan (4) Dampak peran kepala sekolah dalam mengembangkan mutu budaya organisasi di SDMT Ponorogo. Dengan menghasilkan temuan: (1).Peran kepala sekolah sebagai manajer diantaranya: melakukan analisis internal dan eksternal, menginternalisasi nilai keislaman yaitu nilai kemuhammadiahan. (2). Peran kepala sekolah sebagai educator diantaranya: mengikut sertakan pendidik dalam penataran, workshop atau pelatihan memberikan kesempatan kepada pendidik untuk meningkatkan pengetahuan dan keterampilannya dengan belajar ke jenjang pendidikan yang lebih tinggi, melakukan pengkaderan kepada anggota budaya organisasi. membuat jargon-jargon untuk memotivasi anggota budaya organisasi. (3). Peran kepala sekolah sebagai supervisor diantarnya: mengawasi dan mengevaluasi kinerja dan pencapaian anggota budaya organisasi, mengadakan rapat setiap, minggu, bulan dan semester, memantau prestasi pendidik dan peserta didik. (4) Dampak peran kepala sekolah dalam mengembangkan mutu budaya organisasi diantaranya: iklim budaya organisasi menjadi harmonis, sekolah menjadi lebih berprestasi.

scholarly journals An Action Research on Design, Delivery, and Evaluation of a Distance Course in a Vocational Higher Education Institution

2015 ◽  
pp. 138-166
Author(s):  
Erman Uzun ◽  
M. Yaşar Özden ◽  
Ali Yildirim
Keyword(s):  
Higher Education ◽  
Action Research ◽  
Web Design ◽  
Evaluation Process ◽  
Education Institution ◽  
Design Development ◽  
Higher Education Institution ◽  
Face To Face ◽  
Wide Range ◽  
Vocational Higher Education

In this chapter, the main purpose is to explain design, development, delivery, and evaluation process of a new distance web design course for the needs of students in a vocational higher education institution. It is important to highlight how wisely instructional technology was designed and used to mitigate problems to effectively support the course. Proactive action research was used as a framework of the study. This research focused on an analysis of the existing face-to-face course to mitigate its problems in the new design. Then, strengths and weaknesses of the new design in the new context were investigated. It is important to highlight that technology comes with its unique problems and opportunities. Thus, teaching in a technological environment confronts instructors with a wide range of pedagogical, technological, and physical challenges.

NUMERICAL SOLUTIONS OF SMOLUCHOWSKI'S EQUATIONS FOR THE COAGULATION OF UNCHARGED AEROSOLS

1965 ◽  
Vol 43 (8) ◽  
pp. 2312-2318 ◽  
Author(s):  
J. M. Beeckmans
Keyword(s):  
Particle Size ◽  
Numerical Solutions ◽  
Coagulation Factor ◽  
Dispersion Parameter ◽  
Particle Size Range ◽  
Mean Particle Size ◽  
A Value ◽  
Wide Range ◽  
Differential Sedimentation ◽  
Smoluchowski’S Equation

Smoluchowski's equations for the coagulation of uncharged aerosol particles were programmed for solution by electronic computer. Terms representing differential sedimentation, turbulence, and mean aggregate density in solid aerosols were included. The effect of heterogeneity in the particle-size distribution of the aerosols on their rate of coagulation was illustrated by means of a slip-corrected coagulation factor Fc, which assumes a value of unity in all non-turbulent homogeneous aerosols. Curves of Fc vs. σg, the geometrical standard deviation, were calculated for aerosols of various mean particle-size. The effects due to turbulence, and to differential sedimentation, were illustrated in a similar manner. It was also found that the process of coagulation gives rise to a degree of dispersion which is independent of the original dispersion parameter, and depends only slightly on the mean particle-size of the aerosol over a wide range of particle-sizes. In the particle-size range in which differential sedimentation is inappreciable, the relatively constant value of the dispersion parameter implies that heterogeneous aerosols must obey the simplified integrated form of Smoluchowski's equation, which is applicable to homogeneous aerosols. The coagulation constant exceeds that predicted by the simple theory by about 10% for liquid aerosols of 0.1 μ or less.

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