METHODS AND TOOLS OF CEMENT PRODUCTION PROCESS (COMPARATIVE ANALYSIS), POTENTIAL OF UZBEKISTAN IN THIS AREA

2020 ◽  
Vol 2020 (4) ◽  
pp. 193-198
Author(s):  
Khudaykulov Umid ◽  
◽  
S Turgunbayev
Keyword(s):  
Production Process ◽  
Cement Industry ◽  
Structure And Properties ◽  
Drying Method ◽  
Cement Production ◽  
Advantages And Disadvantages ◽  
Initial Appearance ◽  
History Of ◽  
Technological Methods ◽  
Physicochemical Structure

the article describes the history of cement use, its initial appearance, cement composition and its physicochemical structure and properties, types of cement and classifications of cement. Cement production processes, technological methods used in production, advantages and disadvantages of the methods and technological stages of the production process by the drying method of cement production are covered. A study of the cement industry and processes in the country was conducted, which summarized the most priority methods and processes of cement production based on the natural resources, climate and potential of Uzbekistan.

scholarly journals Development Trends of the Cement Industry in Uzbekistan

2021 ◽  
Vol 7 (6) ◽  
Author(s):  
D. Khairova ◽  
M. Sayfullaeva
Keyword(s):  
Technological Process ◽  
Production Technology ◽  
Cement Industry ◽  
Construction Work ◽  
Development Trends ◽  
Cement Production ◽  
Manufacturing Enterprises ◽  
Advantages And Disadvantages ◽  
Cement Manufacturing

The article provides an overview and analysis of the cement industry in Uzbekistan. The authors analyzed the volume of construction work, the volume of production and sales of cement products on the exchange, as well as the target parameters of the production of cement products in 2019–2025. Particular attention is paid to the technological process of cement production, in particular dry and wet methods. The advantages and disadvantages of each production technology are presented in detail. The authors reviewed the existing and projected cement manufacturing enterprises in Uzbekistan.

scholarly journals Determination of Optimal Clinker Factor in Cement Production by Chemical Grinding Aids Addition

2015 ◽  
Vol 776 ◽  
pp. 223-228
Author(s):  
Titut Eryanto ◽  
Elita Amrina
Keyword(s):  
Production Process ◽  
Co2 Emission ◽  
Environmental Problem ◽  
Green Manufacturing ◽  
Cement Industry ◽  
Cement Production ◽  
Grinding Aids ◽  
The World ◽  
Cement Manufacturing

The cement industry has remarked as an intensive consumer of energy. The amount of energy consumed in the cement manufacturing has a correlation to the increasing of CO2 emission. It is reported that the cement Industry has contributed to 5–7% of the total CO2 emission in the world. Thus, there is a need to make an innovation in order to overcome the environmental problem. One of effort can be made is by using chemical grinding aids (CGA) as an additive material in the cement production process. This study aimed to determine the optimal clinker factor of the cement production by the addition of chemical grinding aids (CGA). The experiments are conducted in PT Semen Padang consisting of four variable of the clinker factor without CGA and with CGA addition 300 ppm. The clinker factor varies from 78.3% to 72.9%. The results show that the optimal clinker factor is at 74.5% with the CGA addition 300 ppm. It can improve the cement fineness to 3848cm2/gr and decrease the sieving R45μ to 10%. In addition, the strength of the cement produced is higher than the standard. The findings show the chemical grinding aids (CGA) addition in the cement production process can reduce the clinker factor as well as reducing the CO2 emissions. It can aid the cement industry to achieve the higher performance in green manufacturing and so as to increase the competitiveness.

scholarly journals ANALISA TINGKAT KEBISINGAN TERHADAP PEKERJA PADA PROSES PRODUKSI INDUSTRI SEMEN

EnviroUS ◽  
2021 ◽  
Vol 1 (2) ◽  
pp. 19-25
Author(s):  
Riswanda Putri Andini ◽  
Mohammad Mirwan
Keyword(s):  
Production Process ◽  
Exposure Time ◽  
High Intensity ◽  
Raw Materials ◽  
Threshold Value ◽  
Cement Industry ◽  
Cement Production ◽  
The Republic ◽  
Negative Impacts ◽  
New Research

The cement industry in the new research plant was established for ± 5 years. The existence of this establishment certainly has negative impacts, one of which is the production of high-intensity / noisy sound. The noise in the cement industry comes from the cement production process where raw materials are processed into finished materials that are ready to be distributed to consumers. The noise will certainly have an impact on the surrounding workers. This study aims to show the very poor intensity of the processes that occur and to see the relationships that occur in communication, psychology, and worker physiology. The highest noise occurs in the raw factory area with a distance of 5 meters from the equipment where the intensity is 93.23 dB. Based on the Regulation of the Minister of Manpower of the Republic of Indonesia No. 5 of 2018, this exceeds the allowable threshold value of 85 dB with an exposure time of 8 hours. And responsive from workers who do not feel disturbed by what happened.

An overview of Osmotic Drug Delivery System: An update review

2017 ◽  
Vol 6 (7) ◽  
pp. 5426 ◽  
Author(s):  
Hiren J. Patel ◽  
Vaishnavi P. Parikh
Keyword(s):  
Drug Delivery ◽  
Drug Delivery Systems ◽  
Life Cycle Management ◽  
Delivery Systems ◽  
Osmotic Pump ◽  
Factors Affecting ◽  
Advantages And Disadvantages ◽  
New Chemical Entities ◽  
History Of ◽  
Novel Drug

The pharmaceutical industry has faced several marked challenges in order to bring new chemical entities (NCEs) into the market over the past few decades. Various novel drug delivery approaches have been used as a part of life cycle management from which Osmotic drug delivery systems look the most promising one. After discussing the history of osmotic pump development, this article looks at the principles, advantages and disadvantages of osmotic drug delivery systems. Then, the basic components of osmotic pump and factors affecting the design of oral osmotic drug delivery systems are discussed in detail. In the later part of the manuscript, various types of osmotic pumps available in the market and evaluation methods for osmotic drug delivery systems are discussed in detail.

scholarly journals The Ocular Gene Delivery Landscape

Biomolecules ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1135
Author(s):  
Bhubanananda Sahu ◽  
Isha Chug ◽  
Hemant Khanna
Keyword(s):  
Gene Therapy ◽  
Genetic Diseases ◽  
Gene Therapies ◽  
Advantages And Disadvantages ◽  
Fda Approval ◽  
New Information ◽  
Efficient Delivery ◽  
Delivery Routes ◽  
History Of ◽  
Different Parts

The eye is at the forefront of developing therapies for genetic diseases. With the FDA approval of the first gene-therapy drug for a form of congenital blindness, numerous studies have been initiated to develop gene therapies for other forms of eye diseases. These examinations have revealed new information about the benefits as well as restrictions to using drug-delivery routes to the different parts of the eye. In this article, we will discuss a brief history of gene therapy and its importance to the eye and ocular delivery landscape that is currently being investigated, and provide insights into their advantages and disadvantages. Efficient delivery routes and vehicle are crucial for an effective, safe, and longer-lasting therapy.

MicroRNA annotation in plants: current status and challenges

2021 ◽  
Author(s):  
Yongxin Zhao ◽  
Zheng Kuang ◽  
Ying Wang ◽  
Lei Li ◽  
Xiaozeng Yang
Keyword(s):  
Small Rna ◽  
Signal To Noise Ratio ◽  
Current Status ◽  
Mirna Biogenesis ◽  
Plant Mirnas ◽  
Signal To Noise ◽  
Advantages And Disadvantages ◽  
Plant Mirna ◽  
History Of ◽  
Mirna Biogenesis Pathway

Abstract Last two decades, the studies on microRNAs (miRNAs) and the numbers of annotated miRNAs in plants and animals have surged. Herein, we reviewed the current progress and challenges of miRNA annotation in plants. Via the comparison of plant and animal miRNAs, we pinpointed out the difficulties on plant miRNA annotation and proposed potential solutions. In terms of recalling the history of methods and criteria in plant miRNA annotation, we detailed how the major progresses made and evolved. By collecting and categorizing bioinformatics tools for plant miRNA annotation, we surveyed their advantages and disadvantages, especially for ones with the principle of mimicking the miRNA biogenesis pathway by parsing deeply sequenced small RNA (sRNA) libraries. In addition, we summarized all available databases hosting plant miRNAs, and posted the potential optimization solutions such as how to increase the signal-to-noise ratio (SNR) in these databases. Finally, we discussed the challenges and perspectives of plant miRNA annotations, and indicated the possibilities offered by an all-in-one tool and platform according to the integration of artificial intelligence.

Advantages and disadvantages of main surgical approaches for robot-assisted radical prostatectomy

2020 ◽  
Vol 10 (4) ◽  
pp. 347-354
Author(s):  
Dmitriy M. Il’in ◽  
Vladimir A. Makeev
Keyword(s):  
Radical Prostatectomy ◽  
Abdominal Cavity ◽  
Prostate Gland ◽  
Clinical Situation ◽  
Surgical Approaches ◽  
Robot Assisted ◽  
Scientific Databases ◽  
Advantages And Disadvantages ◽  
Robotic Assisted Surgery ◽  
History Of

The introduction of robotic-assisted surgery into clinical practice has opened up new possibilities for the surgical treatment of urological patients. Robot-assisted radical prostatectomy (RARP) is one of the most commonly performed robot-assisted surgery. The review is devoted to the main surgical approaches for RARP. An analysis of publications on this topic was carried out using the search engines of the scientific databases PubMed, Medscape, Google Scholar, eLibrary when writing the article The article presents an overview of the advantages and disadvantages of the existing four access options for RARP: anterior, perineal, lateral and posterior, as well as oncological and functional outcomes of operations. It has been shown that a surgeon with different approaches can choose the most suitable one for a given clinical situation, focusing on the stage of the disease, the patients age, anatomical features of the prostate gland, the state of the patients erectile function, and the history of operations on the abdominal cavity and pelvic organs.

Pelestarian Terbitan Berkala Koleksi Perpustakaan Nasional Republik Indonesia dengan Metode Penjilidan “Malaysia”

2021 ◽  
Vol 28 (1) ◽  
pp. 15-25
Author(s):  
Damaji Ratmono
Keyword(s):  
Field Research ◽  
Future Generations ◽  
Literature Study ◽  
National Library ◽  
Advantages And Disadvantages ◽  
Descriptive Research ◽  
History Of ◽  
Research Interviews ◽  
To Come ◽  
Insight Into

Preservation of library materials or library collections is an effort made so that library materials can be used by future generations. This paper describes the "Malaysian" binding method used by the Sub Division of Technical Binding Materials of the National Library of Indonesia in preserving the collection of periodicals such as tabloids and newspapers. Apart from that, this paper also describes some of the advantages and disadvantages seen in the use of the "Malaysian" method as well as the early history of using this method in preserving the collection of periodicals in the National Library of Indonesia. This writing aims to make readers, especially library managers, know and gain insight into the "Malaysian" binding method. This writing method is through descriptive research with a qualitative approach. Methods of data collection are carried out through the field research, interviews, and literature study. The results show that the National Library of Indonesia uses this method after studying it from Malaysia in May 1990. From observations it is also known that this method has several advantages, namely the binding result is stronger, the collection is more preserved, the binding can be assembled and has an aesthetic side. Meanwhile, the disadvantages of this binding method are that the process tends to be longer, more expensive, cannot be put on too many shelves because the collection will shift backwards, the pages tend to come off easily if the stitches are not strong enough, and can only be used in binding periodical collections.

Design multivariate statistical process control procedure in the case of Ethio cement

2022 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Daniel Ashagrie Tegegne ◽  
Daniel Kitaw Azene ◽  
Eshetie Berhan Atanaw
Keyword(s):  
Neural Network ◽  
Production Process ◽  
Control Chart ◽  
Cement Industry ◽  
Time Interval ◽  
Control Procedure ◽  
Sufficient Information ◽  
Content Type ◽  
Multivariate Control Chart ◽  
Multivariate Control

PurposeThis study aims to design a multivariate control chart that improves the applicability of the traditional Hotelling T2 chart. This new type of multivariate control chart displays sufficient information about the states and relationships of the variables in the production process. It is used to make better quality control decisions during the production process.Design/methodology/approachMultivariate data are collected at an equal time interval and are represented by nodes of the graph. The edges connecting the nodes represent the sequence of operation. Each node is plotted on the control chart based on their Hotelling T2 statistical distance. The changing behavior of each pair of input and output nodes is studied by the neural network. A case study from the cement industry is conducted to validate the control chart.FindingsThe finding of this paper is that the points and lines in the classic Hotelling T2 chart are effectively substituted by nodes and edges of the graph respectively. Nodes and edges have dimension and color and represent several attributes. As a result, this control chart displays much more information than the traditional Hotelling T2 control chart. The pattern of the plot represents whether the process is normal or not. The effect of the sequence of operation is visible in the control chart. The frequency of the happening of nodes is recognized by the size of nodes. The decision to change the product feature is assisted by finding the shortest path between nodes. Moreover, consecutive nodes have different behaviors, and that behavior change is recognized by neural network.Originality/valueModifying the classical Hotelling T2 control chart by integrating with the concept of graph theory and neural network is new of its kind.

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