In this article, we can conclude that oleum with a high content of sulfur dioxide should be used for sulfation to increase the content of practically valuable m-isomers in mixtures. However, oleum containing 33-54% free SO3 is practically unsuitable for sulfonation due to its high crystallization temperature. In addition, high resin content has been reported in oleum containing over 50% free SO3 when mixed with H-alkylanilines.

If there should be an occurrence of batch galvanized steel, utilizing zinc covering, the sythesis of the zinc layer and zinc layer stages can essentially affect the compound's strength. To deliver dependable and strong bonds the zinc layer surface must be pretreated. Reasonable readiness techniques for the details of the productive business should be picked in regard to the particular surface qualities of the zinc covering. Contrasted with the range impacting process, pickling offers a conservative surface pre-treatment technique for the cluster aroused parts.

There is an incredible need to investigate and foster non-dangerous testing techniques for cement to guarantee legitimate relieving and it has required strength in development and in assistance. Restricted trials utilizing electrical strategies have been accounted for in the writing to investigate the connection between the electrical properties and nature of cement. This review was intended to foster exploratory strategies that utilize the connection between the electrical and mechanical properties of concrete cement. Concrete is a protecting material according to the electrical perspective and huge volume of hypothesis and test strategies are accessible to concentrate on the protecting properties of materials utilized in electrical and electronic types of gear. This review was situated to analyze whether those speculations and test procedures, could be applied to concrete, with reasonable changes to its particular nature and properties.

In the conditions of transition of the economy of the Republic of Uzbekistan to market relations, the production of high-quality products in all spheres of production, including agriculture, plays an important role.  One of the leading branches of Agriculture is scabies, the scab sheep breed, which forms the basis of which is the only breed of World importance, which produces high – quality fur products-scab skins of different colors, colors and curly groups, and is economically viable. It is considered the most useful for the steppe and steppe regions of Central Asia.  The productivity of animals of this breed depends on various factors, one of which is the observance of the technology of their use. In this article, the data on the productive biological characteristics of lactating Karakul Sheep and “mary” native sheep, including wool yield, milk yield index will be discussed.

The study investigated the effect of problem-based learning method on students’ academic achievement in computer hardware maintenance in universities in Enugu state, Nigeria. The study adopted quasi-experimental research design. Pre-test, post-test of both treatment and control groups were analysed using Analysis of Covariance (ANCOVA). Findings from the study revealed that, there was a statistically significant difference in the academic achievement of students taught computer hardware maintenance with problem-based learning method and those taught with conventional method. Further analyses revealed that the male students had higher mean score than their female counterparts when taught with PBL method; however, there was no statistical significant difference in the mean achievement scores of students taught computer hardware maintenance with problem-based learning method and those taught with conventional method. It was therefore recommended among others that problem-based learning method should not be limited to teaching computer hardware maintenance, but should be extended to other computer education courses as well as other disciplines in other universities.

An unstructured information presents difficulties to putting away information. Specialists gauge that 80 to 90 percent of the information in any association is unstructured. Also, the measure of unstructured information in ventures is developing essentially regularly ordinarily quicker than organized data sets are developing. As organized information is existing in table arrangement i,e having legitimate plan however unstructured information is construction less data set So its straightforwardly implying the significance of NoSQL stockpiling Model and Guide Decrease stage. For handling unstructured information, where in existing it is given to Cassandra dataset. Here in present framework alongside Cassandra dataset, Mongo DB is to be executed. As Mongo DB give adaptable information model and huge measure of choices for questioning unstructured information. Though Cassandra model their information so as to limit the complete number of questions through more cautious preparation and renormalizations. It offers essential auxiliary lists however for the best exhibition its prescribed to show our information as to utilize them inconsistently.