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2020

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Effects Of Dam Gate Geometry On Pressure Variation Aided By Map Presentation, Sheeraz M. Ameen, Thamir M. Ahmed Dec 2020

Effects Of Dam Gate Geometry On Pressure Variation Aided By Map Presentation, Sheeraz M. Ameen, Thamir M. Ahmed

Polytechnic Journal

The dam vertical lift gate is one of the most important operational parts that regulate the high head water flow to power plants as well as satisfying the water needs for projects and areas downstream of the dam. Due to the high water levels in the dam reservoir, the gates are subjected to many hydrostatic and dynamic pressures that affect their performance and stability. Hence, it became necessary to study all parameters that may cause excessive pressures which may lead to reduce the gate performance efficiency or even cause failure. In the current study, the pressure distribution along the bottom …

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Three-Dimensional Surface Evaluation And Shear Bond Strength Of Three Pre-Treatment E-Max Surfaces For Metal And Ceramic Orthodontic Brackets (In Vitro Study), Huda A. Mohammed, Omar S. Ali Dec 2020

Three-Dimensional Surface Evaluation And Shear Bond Strength Of Three Pre-Treatment E-Max Surfaces For Metal And Ceramic Orthodontic Brackets (In Vitro Study), Huda A. Mohammed, Omar S. Ali

Polytechnic Journal

3D evaluation and shear bond strength (SBS) for metal and ceramic brackets after three pre-treatment surfaces of lithium disilicate (LD) crowns. Sixty lithium disilicate (LD) crowns were fabricated in laboratory according to manufacturer instruction and then divided into six groups (three groups for metal brackets and three groups for ceramic one). The 1st group for both was treated with round diamond bur, the 2nd one by hydrofluoric acid (HFA) 9.0%, and the 3rd group by laser (Er,Cr:YSGG). All treated surfaces were examined by laser profilometer and scan electron microscope. The Scotchbond Universal Adhesive and Transbond XT were used for bracketing …

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Influences Of Polymer Modifiers On Porous Hot Asphalt Mixture Property And Durability, Mohammed Q. Ali, Ganjeen J. Khoshnaw Dec 2020

Influences Of Polymer Modifiers On Porous Hot Asphalt Mixture Property And Durability, Mohammed Q. Ali, Ganjeen J. Khoshnaw

Polytechnic Journal

Fundamentally, sustainability and cost-effectiveness in infrastructure development have received widespread attention. Permeable pavement is such a concept that it is sustainable in the field of transportation and is being tested. Fully permeable pavement is a modern design method in which each layer is porous and can store water, avoiding the impact of stormwater on the pavement to avoid stormwater, skidding, floods, and water splash on the road and parking area which decrease safety rate. Porous asphalt (PA) is an asphalt mixture with a little or no fine aggregate. Due to open structures and advantages are used as a drainage layer …

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Numerical Analysis Of Breast Cancer Cell With Gold Nanoparticles Necrosis By Laser Hyperthermia, Shna A. Karim, Yousif M. Hassan Dec 2020

Numerical Analysis Of Breast Cancer Cell With Gold Nanoparticles Necrosis By Laser Hyperthermia, Shna A. Karim, Yousif M. Hassan

Polytechnic Journal

Laser hyperthermia treatment of cancer tissue is widely used in cancer treatment to destroy cancer cells. This study focus on the mechanisms of heat transfer in biological tissues to minimize damage to the tissues resulting from extra heat applied. The important feature of this method is heating of specific region to raise its temperature to a threshold temperature and destroying cancer cells without to destroy surrounding tissue. In this study, we have used the combinations of laser light and gold nanoparticles to investigate the influence of nanoparticles on the spatial distribution of temperature in the tumor and healthy tissues. Accurate …

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The Effectiveness Of Behavioral Counseling As Intervention Of Abasement, Aggression, And Endurance Of High School Students, I Ketut Gading Dec 2020

The Effectiveness Of Behavioral Counseling As Intervention Of Abasement, Aggression, And Endurance Of High School Students, I Ketut Gading

Jurnal Kajian Bimbingan dan Konseling

This study aims to determine: (1) the effectiveness of behavioral counseling with assertive training techniques to increase the nature of abasement, (2) the effectiveness of behavioral counseling with shaping techniques to reduce the nature of aggression, and (3) the effectiveness of behavioral counseling with self-management techniques to increase the nature of endurance. This study employed an experimental study with a pre-test post-test control group. Participants involved were 37 class XI students of the Lab. School Undiksha. To recruit the participants, a purposive sampling technique was used by which the participants were students with low abasement, high aggression, and low endurance. …

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Integration Of Cardiovascular Risk Assessment With Covid-19 Using Artificial Intelligence., Jasjit S Suri, Anudeep Puvvula, Misha Majhail, Mainak Biswas, Ankush D Jamthikar, Luca Saba, Gavino Faa, Inder M Singh, Ronald Oberleitner, Monika Turk, Saurabh Srivastava, Paramjit S Chadha, Harman S Suri, Amer M Johri, Vijay Nambi, J Miguel Sanches, Narendra N Khanna, Klaudija Viskovic, Sophie Mavrogeni, John R Laird, Arindam Bit, Gyan Pareek, Martin Miner, Antonella Balestrieri, Petros P Sfikakis, George Tsoulfas, Athanasios Protogerou, Durga Prasanna Misra, Vikas Agarwal, George D Kitas, Raghu Kolluri, Jagjit Teji, Michele Porcu, Mustafa Al-Maini, Ann Agbakoba, Meyypan Sockalingam, Ajit Sexena, Andrew Nicolaides, Aditya Sharma, Vijay Rathore, Vijay Viswanathan, Subbaram Naidu, Deepak L Bhatt Dec 2020

Integration Of Cardiovascular Risk Assessment With Covid-19 Using Artificial Intelligence., Jasjit S Suri, Anudeep Puvvula, Misha Majhail, Mainak Biswas, Ankush D Jamthikar, Luca Saba, Gavino Faa, Inder M Singh, Ronald Oberleitner, Monika Turk, Saurabh Srivastava, Paramjit S Chadha, Harman S Suri, Amer M Johri, Vijay Nambi, J Miguel Sanches, Narendra N Khanna, Klaudija Viskovic, Sophie Mavrogeni, John R Laird, Arindam Bit, Gyan Pareek, Martin Miner, Antonella Balestrieri, Petros P Sfikakis, George Tsoulfas, Athanasios Protogerou, Durga Prasanna Misra, Vikas Agarwal, George D Kitas, Raghu Kolluri, Jagjit Teji, Michele Porcu, Mustafa Al-Maini, Ann Agbakoba, Meyypan Sockalingam, Ajit Sexena, Andrew Nicolaides, Aditya Sharma, Vijay Rathore, Vijay Viswanathan, Subbaram Naidu, Deepak L Bhatt

Heart and Vascular Articles

Artificial Intelligence (AI), in general, refers to the machines (or computers) that mimic "cognitive" functions that we associate with our mind, such as "learning" and "solving problem". New biomarkers derived from medical imaging are being discovered and are then fused with non-imaging biomarkers (such as office, laboratory, physiological, genetic, epidemiological, and clinical-based biomarkers) in a big data framework, to develop AI systems. These systems can support risk prediction and monitoring. This perspective narrative shows the powerful methods of AI for tracking cardiovascular risks. We conclude that AI could potentially become an integral part of the COVID-19 disease management system. Countries, …

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Intercomparison Of Three Open-Source Numerical Flumes For The Surface Dynamics Of Steep Focused Wave Groups, Thomas Vyzikas, Dimitris Stagonas, Christophe Maisondieu, Deborah Greaves Dec 2020

Intercomparison Of Three Open-Source Numerical Flumes For The Surface Dynamics Of Steep Focused Wave Groups, Thomas Vyzikas, Dimitris Stagonas, Christophe Maisondieu, Deborah Greaves

School of Engineering, Computing and Mathematics

NewWave-type focused wave groups are commonly used to simulate the design wave for a given sea state. These extreme wave events are challenging to reproduce numerically by the various Numerical Wave Tanks (NWTs), due to the high steepness of the wave group and the occurring wave-wave interactions. For such complex problems, the validation of NWTs against experimental results is vital for confirming the applicability of the models. Intercomparisons among different solvers are also important for selecting the most appropriate model in terms of balancing between accuracy and computational cost. The present study compares three open-source NWTs in OpenFOAM, SWASH and …

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Understanding Teacher Accompaniment In Schools: The Development And Validation Of The Teacher Accompaniment Scale, Rito Baring, Teresa Camarines, Katherine Pia Cabatbat, Stephen Rysen Dec 2020

Understanding Teacher Accompaniment In Schools: The Development And Validation Of The Teacher Accompaniment Scale, Rito Baring, Teresa Camarines, Katherine Pia Cabatbat, Stephen Rysen

Asia-Pacific Social Science Review

In the present study, we examined the psychometric properties of the Teacher Accompaniment Scale (TAS) for senior high and college students from eight schools in Manila. We investigated the empirical basis to develop a reliable measure that assesses student attitudes towards teacher accompaniment. Participants included 1,618 Grade 12 senior high students and college students from selected public and private schools. The study design included exploratory factor analysis for data reduction and confirmatory factor analysis to examine the best fit model. The results showed two dimensions assessing teachers as sources of support and stress. In response to the limited scholarship on …

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The Impact Of Perceived Accessibility To Mrt Service And Perceived Neighborhood Safety On Quality Of Life: A Study In Malaysia, Sharon Lim, Wai-Chun Wong, Zhen-Xi Wu, Chee-Seng Tan Dec 2020

The Impact Of Perceived Accessibility To Mrt Service And Perceived Neighborhood Safety On Quality Of Life: A Study In Malaysia, Sharon Lim, Wai-Chun Wong, Zhen-Xi Wu, Chee-Seng Tan

Asia-Pacific Social Science Review

Quality of life (QoL) has long been studied by researchers. As a part of the Malaysian government’s efforts to improve citizens’ QoL, in 2017, a new mass rapid transit (MRT) service was launched in Selangor. Although past studies support that access to public transportation service increases QoL, no study has directly examined the relationship between accessibility to the new MRT service and QoL. Thus, a cross-sectional study was designed to test the effects of perceived accessibility to the new MRT service and perceived safety on QoL. Two hundred and fourteen MRT users were recruited using convenience and online snowball sampling …

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Association Between Smartphone Addiction And Physical Activity, Sleeping Hours Among Medical Science Students In Duhok City, Rebar Y. Abdullah, Kawther M. Galary, Robar A. Majid Dec 2020

Association Between Smartphone Addiction And Physical Activity, Sleeping Hours Among Medical Science Students In Duhok City, Rebar Y. Abdullah, Kawther M. Galary, Robar A. Majid

Polytechnic Journal

Background and Aim: Smartphones become a part of today’s life. In spite of the convenience, it contributes to our daily lives and activities, one of the most important problems is smartphone addiction. As known, smartphone addiction is a type of technological addiction or non-substance addiction. The present study is to investigate the association between smartphone addiction and physical activity, sleeping hours among medical science students in Duhok City.Subjects and Methods: A cross-sectional study design carried out with 295 students in medical science colleges in the Duhok City of both gender. Self-reported data collected from December 15, 2019, to January 22, …

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Numerical Study To Evaluate The Performance Of Non-Uniform Stepped Spillway Using Ansys-Cfx, Shawnm M. Saleh, Sarhang M. Husain Dec 2020

Numerical Study To Evaluate The Performance Of Non-Uniform Stepped Spillway Using Ansys-Cfx, Shawnm M. Saleh, Sarhang M. Husain

Polytechnic Journal

The main features that attract hydraulic engineers for designing stepped spillways are their ability to lose a large portion of the flow energy and add or increase aeration to the flow naturally. Hence, smaller size stilling basin and no aeration device may require. This study aims to find the amount of energy dissipation rate and the location of inception point over non-uniform stepped spillway. The numerical 2D ANSYS-CFX code is applied to generate and run thirty-two models of different configurations using two different moderate slopes (1 V:2 H and 1 V:2.5 H) as most of the downstream slopes designed for …

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Effect Of Straw Throwing Method And Some Operational Parameters On The Performance Of A Small Rectangular Baler, Affan O. Hussein Dec 2020

Effect Of Straw Throwing Method And Some Operational Parameters On The Performance Of A Small Rectangular Baler, Affan O. Hussein

Polytechnic Journal

The experiment was carried out on a private farm in Karak village in 2017 to study the effects of the method of throwing the straw behind the combine harvester and some operational factors on the performance of a small rectangular baler. The field was planted with wheat (Triticum spp.) and barley (Hordeum vulgare). A small rectangular baler type (Ćicoria 454), Italian made was used to pick up and bale the straws, which were thrown as heaps and windrows in the field. The results obtained showed that picking up the straw as windrows improved the baler’s performance over the heaps in …

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Determination Of Potential Runoff Coefficient Using Geographic Information System For A Small Basin In Balakayety Watershade, Kurdistan Region Of Iraq, Jehan M. Fattah Sheikh Suleimany Dec 2020

Determination Of Potential Runoff Coefficient Using Geographic Information System For A Small Basin In Balakayety Watershade, Kurdistan Region Of Iraq, Jehan M. Fattah Sheikh Suleimany

Polytechnic Journal

Runoff coefficient is an index for losses in rainfall required in most hydrological models and water resources projects. Generally, in the Balakayety water shade in Kurdistan region of Iraq, no runoff data are available as almost basins are ungagged. The Geographic Information System (GIS) techniques and available data for a small basin in Balakayety watershed within the Erbil governorate (Kurdistan Region of Iraq) were used to estimate the coefficient of potential runoff coefficient (PRC). The estimated PRC will be then used to calculate the depth of runoff. The Satellite Imagery (Landsat 7 ETM+) for 2015 was procured to create land …

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Loop Control And Tuning In Distributed Control System Using Fuzzy Controller., M. Abdel-Geliel, A. Khalil Dec 2020

Loop Control And Tuning In Distributed Control System Using Fuzzy Controller., M. Abdel-Geliel, A. Khalil

Mansoura Engineering Journal

In this paper, the designed schemes for two fuzzey controllers, employing the scaling factor tuning, are proposed. The first fuzzy logic controller is a normalized controller used to control the system. The tuning for the input and output-scaling factors of the first one is done through (le second fuzzy controller (the supervisory controller). This combination is used to appropriately determine the control signal of the process. The supervisory fuzzy controller tunes the normalized fuzzy controller based on the model reference adaptive control technique. The great advantage of the proposed method is that, a supervisor as a fuzzy controller to tune …

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Protocol For A Trial Assessing The Impacts Of School-Based Wash Interventions On Children’S Health Literacy, Handwashing, And Nutrition Status In Low- And Middle-Income Countries, Stephanie O. Sangalang, Shelley Anne J. Medina, Zheina J. Ottong, Allen Lemuel G. Lemence, Donrey Totanes, John Cedrick Valencia, Patricia Andrea A. Singson, Mikaela Olaguera, Nelissa O. Prado, Roezel Mari Z. Ocaña, Rovin James F. Canja, Alfem John T. Benolirao, Shyrill Mae F. Mariano, Jergil Gyle Gavieres, Clarisse P. Aquino, Edison C. Latag, Maria Vianca Jasmin C. Anglo, Christian Borgemeister, Thoomas Kistemann Dec 2020

Protocol For A Trial Assessing The Impacts Of School-Based Wash Interventions On Children’S Health Literacy, Handwashing, And Nutrition Status In Low- And Middle-Income Countries, Stephanie O. Sangalang, Shelley Anne J. Medina, Zheina J. Ottong, Allen Lemuel G. Lemence, Donrey Totanes, John Cedrick Valencia, Patricia Andrea A. Singson, Mikaela Olaguera, Nelissa O. Prado, Roezel Mari Z. Ocaña, Rovin James F. Canja, Alfem John T. Benolirao, Shyrill Mae F. Mariano, Jergil Gyle Gavieres, Clarisse P. Aquino, Edison C. Latag, Maria Vianca Jasmin C. Anglo, Christian Borgemeister, Thoomas Kistemann

Development Studies Faculty Publications

Diarrhea, soil-transmitted helminth infection and malnutrition are leading causes of child mortality in low- and middle-income countries (LMICs). To reduce the prevalence of these diseases, effective interventions for adequate water, sanitation, and hygiene (WaSH) should be implemented. This paper describes the design of a cluster-randomized controlled trial that will compare the efficacy of four school-based WaSH interventions for improving children’s health literacy, handwashing, and nutrition. Interventions consisted of (1) WaSH policy reinforcement; (2) low-, medium-, or high-volume health education; (3) hygiene supplies; and (4) WaSH facilities (e.g., toilets, urinals, handwashing basins) improvements. We randomly allocated school clusters from the intervention …

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Linking Students Anxiety And Their Academic Achievements In The Subject Of Statistics At Ms-Library And Information Sciences Level In Pakistan, Saeed Ullah Jan Dec 2020

Linking Students Anxiety And Their Academic Achievements In The Subject Of Statistics At Ms-Library And Information Sciences Level In Pakistan, Saeed Ullah Jan

Library Philosophy and Practice (e-journal)

Anxiety plays a very dynamic role in the academic performance of the students. A normal level of anxiety is beneficial for students. It motivates students for study and hard work that results into a prosperous future, but high level of anxiety badly affects the students learning process. This study explains the students’ anxiety and academic achievements of the MS-Library and Information Science students of Sarhad University of Science and IT, Pakistan. Survey based quantitative approach was applied for data acquisition. Descriptive statistics was used to analyze the data. Lack of motivation from teachers, class tests, and assignments were regarded as …

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Significant Contribution Of Mobile Apps To The Development Of Tourism In Uzbekistan, Alimjon Dadamuhamedov Irgashevich Dec 2020

Significant Contribution Of Mobile Apps To The Development Of Tourism In Uzbekistan, Alimjon Dadamuhamedov Irgashevich

The Light of Islam

Recently, Uzbekistan has taken comprehensive measures to develop tourism as one of the strategic sectors that contribute to the rapid development of regions, increase incomes and living standards of the population, as well as increase investment attractiveness. Modern information technologies make a signifcant contribution to the development of pilgrimage tourism. Advertising of online travel services in pilgrimage tourism currently does not allow you to automate the work of a travel Agency without creating an effective website. This article is devoted to the analysis of Internet technologies aimed at improving the tourism industry. The practical signifcance of the article lies in …

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The Arabic Loanwords In Education Terminology: Linguistic And Statistical Analysis, Nargiza Rashidova Dec 2020

The Arabic Loanwords In Education Terminology: Linguistic And Statistical Analysis, Nargiza Rashidova

The Light of Islam

This article describes one of the methods for studying the lexical and semantic composition of the language. This method allows determining the number of linguistic units, their frequency and classifes them by proceeding from the basic types of semantic relations. Statistical and semantic analysis of a language enables us to determine the relationship between the original and borrowed parts of the vocabulary of the language. A part of the vocabulary of the Uzbek language, which consisted of Arabic and Persian words in the period of the 30-90s, was replaced by Russian-international borrowings. This article is devoted to the coverage of …

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An Artistic Expression Of The Connection Between “Man And The Universe” In The Works By Suhrаb Sipehri, Nargiza Shoaliyeva, Safar Abdulloh Dec 2020

An Artistic Expression Of The Connection Between “Man And The Universe” In The Works By Suhrаb Sipehri, Nargiza Shoaliyeva, Safar Abdulloh

The Light of Islam

The poet and writer Sohrab Sipehri (1928-1980) played a particular role in the formation and development of Iranian poetry at the beginning of the twentieth century. This poet created his style of expression and was an enlightened person who provided a holistic connection of modern philosophical views with orthodox ideas. He was a philosopher-poet, an artistic thinker who was able to give the contemporary content of the interpretation of theories of «Unity» - («wahdat al-wujud») and «Perfect man» - («komil inson») in the traditional system of mystical views. As a great writer he created a new set of poetic emblems …

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The Signs And Features Of Arabic Non-Declinable Words, Malika Nasirova Dec 2020

The Signs And Features Of Arabic Non-Declinable Words, Malika Nasirova

The Light of Islam

Medieval Arab linguists traditionally began their scientifc works with questions of inflection [declension]. Case inflection is the main factor that determines the word’s grammatical function in a sentence and the meaning that it carries. It is well known that there are three cases in the Arabic language with special diacritical markings ( تاكرحHarakaat). The ability of a word to have a particular case leads to its categorization as “complete”, “incomplete” or “non-declining”. The endings of a word in a sentence may change due to the [influencing] factor, or even if the [influencing] factors change, their ending may not change. The …

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The Architectural Epigraphy Of Naqshbandi-Mujaddidi Tariqah In Central Asia In The Xviii-Xix Centuries, Mekhrojiddin Amonov Dec 2020

The Architectural Epigraphy Of Naqshbandi-Mujaddidi Tariqah In Central Asia In The Xviii-Xix Centuries, Mekhrojiddin Amonov

The Light of Islam

This article examines the architectural and epigraphic monuments associated with the history of the Naqshbandi-Mujaddidi tariqah in the 18th-19th centuries. Information about this tariqah is obtained based on epigraphic data. The article contains information about the murshids who carried out their activities within the “Suf Allahyar” and “Musakhonkhodja Dahbedi” branches of the Central Asian Naqshbandi-Mujaddidi tariqah in the 18th- 19th centuries, as well as information about architectural monuments and epigraphic inscriptions directly related to them. It also provides valuable information about the activities of the murshids of the tariqah Qamariddin Khuzari and Mavlono Mirmuhammad Ibrahim Khodja Samarqandi, as well as …

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Reducing Calories Of Margarins, Khodjaev Sarvar, Abdurakhimov Saidakbar, Akramova Rano Dec 2020

Reducing Calories Of Margarins, Khodjaev Sarvar, Abdurakhimov Saidakbar, Akramova Rano

CHEMISTRY AND CHEMICAL ENGINEERING

The goal is to reduce the calorie content of margarines by changing the composition and fat base. In this regard, we studied the change in caloric content and the content of trans-acids in margarines with a change in their fat content. To reduce calorie content, the fat base of margarine was also reduced to 60%, and to increase the biological value of the product, it was enriched with highly unsaturated fatty acids. It was determined that with an increase in the number of unsaturated fatty acids and a decrease in the margarine fat content, the stability of the emulsion deteriorates. …

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Chromatographic Analysis Of The Effect Of Catalyst Quantities On The Hydrogenization Process, Rakhimov Dilshod, Ruzibayev Akbarali, Eyupov Edem, Dadamukhamedov Khojiakbar Dec 2020

Chromatographic Analysis Of The Effect Of Catalyst Quantities On The Hydrogenization Process, Rakhimov Dilshod, Ruzibayev Akbarali, Eyupov Edem, Dadamukhamedov Khojiakbar

CHEMISTRY AND CHEMICAL ENGINEERING

Oil and fat industry is one of the important sectors of the food industry. Salomas (Hydrogenated oil) for food and technical purposes are the main components of margarine products, toilet, household soaps, various technological lubricants, cosmetic creams and can be used as valuable chemical raw materials. Objective: ox work is to study the effect of the amount of catalyst on the hydrogenation of cottonseed oil by chromatographic analysis of the resulting salomas. It is confirmed that an increase in the amount of the catalyst from 0.05 to 0.4% increases the melting point of salomas and reduces the iodine number, which …

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Extraction Of Unsaturated Fatty Acids From Vegetable Oils, Pecherskaya Mariya, Mamatkulov Shavkat, Ruzimuradov Olim, Butanov Khakimjan Dec 2020

Extraction Of Unsaturated Fatty Acids From Vegetable Oils, Pecherskaya Mariya, Mamatkulov Shavkat, Ruzimuradov Olim, Butanov Khakimjan

CHEMISTRY AND CHEMICAL ENGINEERING

The article studies the possibility of extraction of monounsaturated oleic acid from highly stable vegetable oils produced at industrial scale. To solve the set tasks, have been selected samples of vegetable oils, present in the domestic market with a high content of unsaturated fatty acids: cottonseed and sunflower, imported rapeseed and olive oils. These oil samples were degraded by hydrolysis, recovered by acid treatment, and purified by repeated recrystallization in ethanol. The composition of saturated and unsaturated fatty acids included in triglycerides of vegetable oils was investigated using gas chromatography-mass spectrometry (GC-MS). In the obtained samples, the fatty acid composition …

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Water-Soluble Jerusalem Artichoke Extracts As Fat Replacer In Dietary Margarine Recipe, Salijanova Shahnozaxon, Ruzibayev Akbarali, Rakhimov Dilshod, Xusanov Zafar Dec 2020

Water-Soluble Jerusalem Artichoke Extracts As Fat Replacer In Dietary Margarine Recipe, Salijanova Shahnozaxon, Ruzibayev Akbarali, Rakhimov Dilshod, Xusanov Zafar

CHEMISTRY AND CHEMICAL ENGINEERING

Creating dietary margarines using biologically valuable substances is the purpose of the work. According to the results of the experiments, it was found that the use of soybean oil, edible vegetable phospholipids and a Jerusalem artichoke extract in the margarine, allowed reducing the amount of fat and enriching the margarine with omega-3 and omega-6 fatty acids, dietary fibre, inulin and other water-soluble substances. Based on these studies prepared margarine enriched inulin and essential fatty acids, which provide not only a preventive property of the finished product, but also high flavor indicators, as well as, original and attractive appearance.

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Optimal Conditions Of Fermentation Of The Pichia Pastoris Yeast Expressing The Recombinant Pres2-S Protein (M-Hbsag) Of Hepatitis B Virus (Hbv), Sasmakоv Sobirdjan, Ashirоv Оybek, Abdurakhmanоv Jaloliddin, Xasanоv Shuhrat Dec 2020

Optimal Conditions Of Fermentation Of The Pichia Pastoris Yeast Expressing The Recombinant Pres2-S Protein (M-Hbsag) Of Hepatitis B Virus (Hbv), Sasmakоv Sobirdjan, Ashirоv Оybek, Abdurakhmanоv Jaloliddin, Xasanоv Shuhrat

CHEMISTRY AND CHEMICAL ENGINEERING

The aim of this study is determination of optimal fermentation conditions of the Pichia pastoris yeast expressing the recombinant Pres2-S protein of hepatitis B virus (HBV). For this purpose we investigated the main factors influencing for the cultivation of recombinant strain of the yeast Pichia pastoris pPIC3,5-S-HBsAg - the composition of the nutrient medium, pH and dissolved oxygen (DO). As a result, by enzyme-linked immunosorbent assay (ELISA) the optimal concentration of methanol ≈1.0 %, which is the initiator and the only source of carbon for protein expression in the Mut+ phenotype Pichia pastoris yeast cells was determined. In the selected …

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Waste Engine Oil Regeneration With Bentonite From The Navbahor Deposit, Azimova Shodiyakhon, Arslanov Sharafutdin, Turakhujayev Saidakbar, Azimov Dilmurod Dec 2020

Waste Engine Oil Regeneration With Bentonite From The Navbahor Deposit, Azimova Shodiyakhon, Arslanov Sharafutdin, Turakhujayev Saidakbar, Azimov Dilmurod

CHEMISTRY AND CHEMICAL ENGINEERING

The aim of the study was the regeneration of used oils. The change in the conditions for the regeneration of used engine oil as a result of adsorptive cleaning with alkaline earth clay from the Navbakhor deposit has been studied. The carried-out regeneration allows almost completely removing mechanical impurities, moisture from the waste oil and helps to clarify it. The optimal conditions for regeneration have been established. The removal of secondary products formed during the use of engine oil while retaining the main components that determine the serviceability of the product has been established. By means of IR spectroscopy, as …

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Mixed Complex Compounds Of Palmitate, Oleate Calcium With Acetamide, Nicotinamide And Thiocarbamide, Ibadullaeva Tursunoy, Azizov Tokhir, Ibragimova Мavluda Dec 2020

Mixed Complex Compounds Of Palmitate, Oleate Calcium With Acetamide, Nicotinamide And Thiocarbamide, Ibadullaeva Tursunoy, Azizov Tokhir, Ibragimova Мavluda

CHEMISTRY AND CHEMICAL ENGINEERING

The purpose of the study was the synthesis and study of the structure of mixed complexes of palmitate, calcium oleate with acetamide, nicotinamide and thiocarbamide. The mixed coordination compounds of palmitate and calcium oleate were synthesized. The composition, individuality, thermal behavior, methods of coordinating the palmitate and oleate fragments, acetamide, nicotinamide and thiocarbamide molecules have been established. Comparison of the diffraction patterns of calcium palmitate and oleate, free ligand molecules and synthesized compounds showed the mismatch of the diffractograms, conseqently that the synthesized complexes have an individual crystal lattice different from the starting materials. The method of coordination of amide …

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Synthesis Of Esters Of Halogenoacetic Acids, Yuldasheva Muxabbat, Turaev Sherzod Dec 2020

Synthesis Of Esters Of Halogenoacetic Acids, Yuldasheva Muxabbat, Turaev Sherzod

CHEMISTRY AND CHEMICAL ENGINEERING

Amidoalkylating reagents containing a phthalimide group are used in the synthesis of hard-to-reach primary amines and complex heterocyclic compounds. These types of amidoalkylating compounds are suitable reagents for nucleophilic substituted reactions in acidic media due to their resistance to acids. Result of reactions of amidoalkylating reagents-N-hydroxyethylphthalimide and N-hydroxymethylphthalimide with aliphatic carbonic acids can also produce new bactericidal and fungicidal esters. In this study, halogen acids reacted with N-hydroxymethylphthalimide monochloric acetic acid, monobromic acetic acid, monoiodic acetic acid, trifluoric acetic acid and trichloroacetic acid, as well as, N-b-hydroxyethylphthaleidyl monohydric acid. As a result of the reactions, new phthalimidomethyl and phthalimidoethyl esters …

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Optimization Composition Of The Wood-Polymer Composition Based On Polyvinylchloride, Aliyev Sunnatulla, Ilkhamov Giyos, Jurayev Asror, Magrupov Farkhad Dec 2020

Optimization Composition Of The Wood-Polymer Composition Based On Polyvinylchloride, Aliyev Sunnatulla, Ilkhamov Giyos, Jurayev Asror, Magrupov Farkhad

CHEMISTRY AND CHEMICAL ENGINEERING

The objective of the reaserch is to elaboration the composition of a wood-polymer composition based on polyvinyl chloride with improved performance properties. The influence of the components of the composition - modifiers, lubricants, regulators and stabilizers - on the properties of the composition was researched. Optimization of the composition of wood-polymer composition based on PVC made it possible to obtain a material with higher strength and fire resistance.

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