Relevance: The theme of machine components case-hardening when heated by a laser ray has been and remains currently relevant. Laser case-hardening is characterized by a number of exclusive advantages: hardening of hard-to-reach surfaces, ensuring local hardening, including “spot” one when a continuous layer of fragile material vulnerable to cracking and destruction doesn’t form; the lack of deformations and warping of processed parts as well as finishing operations; getting desired properties both mechanical and chemical ones by introducing different elements in the uppermost layer of a product at its melting by a laser ray, i.e. at implementing laser alloying.

No abstract

No abstract

No abstract

The article considers the problem of improving the management of the material resources in a service enterprise. The authors suggest a methodology for determining the ratio of costs for material resources and the cost of providing services, with optimal delivery terms, quality, volume and nomenclature of material resources at hospitality enterprises. Practical use of the proposed methodology was tested at the service enterprises of the Nizhny Novgorod region. The article examines the directions of increasing the efficiency of use of material resources based on an analysis of their correlation and distribution relative to the value of the number of rooms of hospitality enterprises. The article examines the main factors that affect the efficiency of the use of material resources and suggests approaches which improving their effectiveness by the example of a service enterprise.