scholarly journals MOBILE HYDRAULIC SHEARS FOR DEMOLITION OF BUILDINGS AND STRUCTURES

Author(s):  
R.A. Mendekeev ◽  
A.B. Nyshanbaeva ◽  
U.S. Kydyralieva ◽  
U. Turarbek u.

The article provides a detailed review of special machines for non-explosive destruction and demolition of old and emergency buildings and structures - on mobile hydraulic shears based on excavators, considers their design features, developed a classification of mobile hydraulic shears.

2019 ◽  
Vol 20 (2) ◽  
pp. 292-308
Author(s):  
V. Chernov ◽  
Е. Golomisyuk ◽  
Р. Evseev

The features of the expert study of traces from the effects of foreign objects on the inner surfaces of the cylinder mechanisms are considered. With the trasological examination of locks, most experts after examining the external and internal surfaces of the cylinder mechanisms of locks, unlocked by various types of keys, falsified or selected keys, ambiguously understand the mechanism of their trace formation, which can sometimes lead to a false conclusion. The purpose of the work is to present the results of the investigation of the mechanism of trace formation and localization of signs of exposure of foreign objects (lock pick, selected or fake keys) on the internal surfaces of the cylinder mechanisms of locks and recommendations to forensic experts in drawing conclusions during the course of the Trasological research. The mechanism of trace formation is considered, the characteristic and classification of traces of exposure to foreign objects are provided (lock pick, selected or fake keys). Groups of lock pick are identified, which are most often found in the Commission of criminal offenses, for their further research. A number of experimental studies have been carried out to study and analyze the mechanism of trace formation, as well as to localize the signs of influence of certain groups of lock pick on the internal surfaces of the cylinder mechanisms of the lock. The progress of the experimental studies has been described in stages. The results of the research on the opening of the cylinder mechanisms of locks are presented with various types of lock pick, depending on their design features. The illustrations explain the conditions for the location of traces on the relevant parts of the cylinder mechanisms of locks from the influence of the respective groups of lock pick. The results of an experimental study are summarized and conclusions are made on the possible conditions for the mechanism of trace formation. Recommendations to judicial experts on the formulation of conclusions in the course of trasological studies of cylinder locking mechanisms are proposed.


2015 ◽  
Vol 137 (12) ◽  
Author(s):  
Floriane Laverne ◽  
Frédéric Segonds ◽  
Nabil Anwer ◽  
Marc Le Coq

Additive manufacturing (AM) is emerging as an important manufacturing process and a key technology for enabling innovative product development. Design for additive manufacturing (DFAM) is nowadays a major challenge to exploit properly the potential of AM in product innovation and product manufacturing. However, in recent years, several DFAM methods have been developed with various design purposes. In this paper, we first present a state-of-the-art overview of the existing DFAM methods, then we introduce a classification of DFAM methods based on intermediate representations (IRs) and product's systemic level, and we make a comparison focused on the prospects for product innovation. Furthermore, we present an assembly based DFAM method using AM knowledge during the idea generation process in order to develop innovative architectures. A case study demonstrates the relevance of such approach. The main contribution of this paper is an early DFAM method consisting of four stages as follows: choice and development of (1) concepts, (2) working principles, (3) working structures, and (4) synthesis and conversion of the data in design features. This method will help designers to improve their design features, by taking into account the constraints of AM in the early stages.


2018 ◽  
Vol 18 ◽  
pp. 316-323
Author(s):  
D. S. Miller ◽  
D. О. Petrov

Criminalistic research on locks takes an important place in prevention, qualification, disclosure and investigation of property crimes related to house penetration, so-called burglaries. The analysis of modern expert practice has established a tendency to increase the unauthorized (criminal) picking of cylinder pin locks with a horizontally oriented keyhole that has become widespread in last years. Its contributes a large number of manufactured devices (manufactured in China mainly) for picking indicated locks, namely master keys operating on the principle of self impressioning and can be purchased through the Internet, as well as a larger number video materials regarding their use. In the available criminalistic literature only singles, at some extent current and actual ways of unauthorized picking of cylinder pin locks using of outside objects with developed recommendations according research on such as manipulation method by means of a selected forged key and bumping are covered. Method of self impressioning that is the basis of picking modern locks mastered and successfully used by "qualified" burglars majority, in modern criminalistics is not mentioned at all. Therefore the purpose of this article is to highlight criminalistic research possibilities of certain types of cylinder pin locks, picked by means of an manufactured self impressioning master key. The article pays attention to such problem aspects: method of self impressioning using in the way of picking a lock with a cylinder mechanism; design features of self impressioning master key to cylinder locks, concerning to the solution of diagnostic and identification issues; traces classification of self impressioning master key remaining on lock details; difficulties research on cylinder locks that were subjected to action of a self impressioning master key.


2020 ◽  
pp. 40-50
Author(s):  
Ilya A. Gulyaev Gulyaev ◽  
Evgeniy P. Ronnov

    This article presents a modern classification of sea-going combined ships of unrestricted navigation according to their type and purpose; as well as provides the review and analysis of national designs of combined restricted, inland and river-sea navigation ships in service and their characteristics. A review of the studies in the field of optimization and justification of key components and characteristics of combined ships is given. Apart from that, this article proposes a solution of the task aimed at optimization of combined ships’ components and characteristics by means of methods and software to be developed on the basis of mathematical modeling of a ship design for different types.


2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Romana Idrees ◽  
Nasir Ud Din ◽  
Sabeehudin Siddique ◽  
Saira Fatima ◽  
Jamshid Abdul-Ghafar ◽  
...  

Abstract Background The 2014 WHO Classification of ovarian neoplasms introduced a new entity of seromucinous tumors associated with endometriosis. These tumors encompassed a spectrum from benign to malignant and included seromucinous cystadenoma/ cystadenofibroma, seromucinous borderline tumor/atypical proliferative seromucinous tumor and seromucinous carcinoma. However, the 2020 WHO Classification of Female Genital Tumours removed seromucinous carcinomas as a distinct entity and recategorized them as Endometrioid carcinomas with mucinous differentiation. Here we describe clinico-morphologic features of seromucinous tumors recategorizing cases originally diagnosed as seromucinous carcinoma in light of 2020 WHO classification and present detailed review of literature. Methods Slides of seromucinous tumors were reviewed. Special emphasis was given to evaluation of stromal invasion. Follow-up was obtained. Results Ten cases were diagnosed. Mean age was 40 years. Four cases were bilateral. Mean size was 19 cm. Grossly; luminal papillary projections were seen in 6 cases. Tumors demonstrated a papillary architecture with papillae lined by stratified seromucinous epithelium showing nuclear atypia. Stromal invasion was seen in 4 cases. Six cases were reported as borderline seromucinous tumors and 4 cases originally diagnosed as seromucinous carcinoma were recategorized as endometrioid carcinoma with mucinous differentiation on review. Endometriosis was seen in 4 cases. CK7, PAX8 and ER were positive in 7/7 cases. Two cases showed extra-ovarian involvement. Follow up was available in 7 cases. Six patients were alive and well at follow up ranging from 8 to 46 months. Six patients received chemotherapy postoperatively. One patient with carcinoma died of disease 18 months postoperatively. Conclusion In our series, 4 cases were originally diagnosed as seromucinous carcinomas. However, these were recategorized in light of the 2020 WHO Classification of Female Genital tumors as endometrioid carcinomas with mucinous differentiation. Six cases were diagnosed as seromucinous borderline tumors. Thus, majority of cases were borderline in agreement with published literature.


2017 ◽  
Vol 11 (3) ◽  
pp. 7-24 ◽  
Author(s):  
Олег Афанасьев ◽  
Oleg Afanasev ◽  
Александра Афанасьева ◽  
Aleksandra Afanaseva

The article is devoted to the storytelling as a relatively new marketing technology for tourist destinations. Tourism storytelling is defined as an integrated marketing technology for promoting tourism destinations through narrative information: legends, myths, fables, urban stories and tales. Tourism narrative become a self-contained attractor, supplementing or even replacing traditional objects of tourist interest. It can be realized through a variety tourist consumption tools. The most important among them are material products (souvenirs, travel guides, etc.), figurative-symbolic objects (street art, iconographic documents, multimedia formats), verbal means, online resources, etc. The authors offer the concept of a “storytelling destination” as an attractive object for tourists, in the marketing promotion of which the technology of storytelling prevails. The article defines the city storytelling tourism place and describes the phenomenon of post-travel storytelling. The authors also accomplish a detailed review of foreign publications on the problems of storytelling and its role in the tourist destinations development, consider some cases of the world’s and Russian storytelling destinations and separate mechanisms for their operating (cases of Kaliningrad, Borovsk, St. Petersburg, etc.). The article characterizes the tourism storytelling as a marketing technology, its and some tools. It is determined that finding out or creating legends and their using in the marketing tourism places is one of the most common technologies of tourism storytelling. The authors present the classification of technologies of storytelling and legend in active tourism.


Author(s):  
Yevhenii Zorin ◽  
Oleksandr Chepeliuk ◽  
Yurii Hryshchuk ◽  
Viacheslav Leshchenko

This paper pays attention to a classification of bistable electromagnetic relays. The following signs of the classification of mentioned relays are emphasized, such as: design, type of contact fixation, relay contact diagram, type of current and value of the control voltage of the coil, the number of coils, nature of the load switched by the relay; the power consumed by the coil, and others. The undertaken classification systematizes information on the design, technical and functional features and parameters of such relays and demonstrates the current level of technical development of relays that are mentioned above. A conclusion is made concerning tendencies and directions of bistable electromagnetic relays capabilities developing in the future by the authors.


Author(s):  
Shilpa Hiremath ◽  
Chandra Prabha R. ◽  
Sushil Kumar I.

In this chapter, the authors have discussed a detailed review on sleep, sleep disorders, and their diagnosis. This chapter provides an insight study of sleep, sleep illness characterized by The International Classification of Sleep Disorders (ICSD), factors affecting sleep, and types of sleep based on age group. Artificial intelligence and machine learning algorithms are also applied in recognizing sleep disorders based on EEG signal attributes. It also highlights the classification of insomnia using different classifiers such as support vector machine, decision tree, and deep neural network.


2018 ◽  
Vol 56 ◽  
pp. 01007
Author(s):  
Anton Cheban ◽  
Natalia Khrunina

Significant quantity of surface miners, various designs and engineering factors are involved in open-cut mining. The article authors offer expanded classification of applied and perspective surface miners with regard to features of design of work tools, rock destruction tool, undercarriage and other elements.


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