ICONTECH INTERNATIONAL JOURNAL

PREPARATION AND CHARACTERIZATION OF OXIDIZED VISCOSE RAYON AS ACTIVATED CARBON FIBER PRECURSOR

2023-01-26T09:31:05+03:00

Viscose rayon fibers prepared with phosphoric acid (H₃PO₄) were oxidized for 30 minutes in air at 150 to 250 °C for 30 min. Optical microscopy, density, elemental analysis, (DSC) calorimetry by differential scanning, (TGA) analysis of thermogravimetric, X-ray diffraction and IR spectroscopy measurements were used to follow and monitor the structural evolution during the oxidation of the phosphorylated viscose rayon fiber.

The physical and chemical properties of phosphorylated and oxidized viscose-rayon fibers changed as the temperature increased. The dehydration of cellulose caused an increase in linear density loss and fiber thickness with temperature. Carbon concentration increased, but hydrogen, oxygen, and phosphorous level decreased, according to elemental analysis. The findings demonstrate that dephosphorylation occurs as temperature rises.

As the results of the DSC and TGA measurements represent how the thermal stability was progressing. The TGA data further demonstrated that a char yield of 49.6% is achievable at 1000°C. The outcomes of X-ray diffraction examination demonstrated the removal of crystallinity brought by de-crystallization processes

An increasing number of ladder-like structures with aromatic moieties were also discovered by X-ray diffraction investigation. The study of (IR) spectroscopy data revealed a progressive and constant decline in the intensity of CH and OH vibration, which are strongly related to the dehydration process. As the results of X-ray diffraction were confirmed by IR spectrograph, which demonstrated the finishing of crystalline structure in the 2000-800 cm^-1region. In the 1590–1600 cm^-1range, (IR) spectroscopy also showed double bonds of C=C, which was responsible for the emergence of structures like a crosslinked ladder. The outcomes demonstrated that phosphorylation followed by oxidation in air resulted in the enhancement of the oxidative stability in viscose-rayon fibers following activation and carbonization.

FORMATION OF SKILLS FOR TEACHING TALENTED AND GIFTED CHILDREN TO BIOLOGISTS

2023-05-22T09:38:56+03:00

Experience of mastering of innovative technologies of educating is examined In the article, That it is very necessary for mobilization. To the activity creatively, examining it, a business man is a characteristic of certain personality. Therefore we decided innovative technologies of one educating module themes. Educating of talented and gifted children is forming of future teachers, specialists in a flow it consciously. Development of children on the basis of inclusive education, т. of е. method of exposure talented and gifted students at ideas and researches.

SPECIES COMPOSITION OF COMPANION WEEDS OF COTTON CULTURE OF TURKESTAN REGION AND PATTERNS OF THEIR DISTRIBUTION

2023-05-22T10:14:59+03:00

The article provides effective ways to control weeds and their information about the species composition and degree of contamination of cotton. Agrophytocenosis analysis of weeds of the south of Kazakhstan was carried out, herbological monitoring was carried out.In the context of increasing cotton yields in light gray soil conditions in Turkestan, integration measures against weeds will be proposed.

INFLUENCE OF BIOLOGIZATION OF SUGARMALI AGRICULTURE OF TURKESTAN REGION ON SOIL FERTILITY

2023-05-22T09:42:50+03:00

The content of humus and NPK elements for root residues in soils according to the variants of the experiment is given in the article, for the period of 3 rotations of 3 rotations of crop rotation (1.sec.svetka, soya, winter wheat, 2-sugar beet, maize and winter wheat) in conditions of irrigated agriculture.

FORMATION OF DIALOGICAL TRAINING SKILLS FOR FUTURE BIOLOGISTS

2023-05-22T10:26:58+03:00

In this article, an exhaustive scientific answer was given to the question of how we form or can implement the speech culture of students, the skills of dialogic learning and the speech culture of students. At the same time, dialogic learning uses the power of conversation in order to maximize the involvement of children in the learning process, expands their ideas and promotes the development of understanding and reading, quick thinking.

STUDENTS MASTERING THE TECHNOLOGY OF ACCELERATED GRAPE GROWING BY THE IN VITRO METHOD

2023-05-22T10:45:43+03:00

The article deals with the development by schoolchildren of the technology of accelerated grape growing by the in vitro method to achieve a certain experience and increase interest in science, demonstrating innovative methods to students in practice.

Also in the course of the study, the task of instilling in schoolchildren the skills of operational solution of various tasks with the help of logical tasks for the formation of knowledge about the in vitro method was achieved.

DETERMINATION OF SOME PHYSICAL AND PHYSIOLOGICAL PROPERTIES OF SEEDS OF DIFFERENT GRASS PEA (Lathyrus sativus L.) GENOTYPES

2022-11-11T10:44:22+03:00

Grass pea (Lathyrus sativus) is naturally growing crop in Turkey and it is considered as a valuable fodder resource to improve the soil properties and livestock farming. This study was carried out in the laboratories of Bingol University between 2019-2020. In the study, some physical (shape-size, surface area, projection area, average arithmetic diameter, thousand grain weight) and physiological (germination rate and time) characteristics of the seeds belonging to twenty-four different genotypes of grass pea were determined, and the results were evaluated according to the randomized blocks experimental design with four repetitions. According to the data obtained, all grass pea genotypes have a short and oval seed structure, with an average length of 6.010 mm, average width of 5.369 mm, a surface area of 28.773 mm², a projection area of 25.830 mm², an arithmetic diameter of 5.690 mm and a thousand grain weight of 126.688 g. It was determined that all grass pea genotypes germinated at a rate of 85-100% within 0.508-0.538 days.