Destructive Type Research Articles

Psychological features of communicative personality behavior in the Internet space

The article determines that belonging to one type or another of a person’s communicative behavior in the Internet space is determined by a specific ratio of psychological factors namely: a combination of cognitive, motivational, affective components of a person’s communicative behavior in the Internet space and the level of constructive-destructive behavior. The author proposes a typology of communicative behavior of a person depending on the type of cognitive distortion: destructive types of communicative behavior of a person in the Internet are based on cognitive distortions such as depreciation of the positive, mental filter, overgeneralization, dichotomous thinking, and catastrophization. The psychological characteristics of users conducting provocative activities on the network are investigated; prone to provocative online activities; ascribing to themselves the conduct of provocative activities in the network; not leading provocative online activities.

Guilt-riddenness as a predictor of interpersonal addiction and well-being in interpersonal relationships

The article is devoted to the problem of the conjugation of guilt feeling and interpersonal dependence. The author shows the actualised need to consider the aspect of personality dependent behaviour in connection with scarce knowledge in this area on the one hand and the emergence of new types of non-chemical dependence on the other. The specifics of the links of non-adaptive forms of guilt and interpersonal dependence are revealed. The author considers the irrational forms of guilt as a predictor of destructive types of interpersonal dependence, namely destructive overdependence and dysfunctional separation. In conclusion, the author states that some forms of non-adaptive guilt are predictors of destructive overdependence and dysfunctional separation. Also,.interpersonal dependence and irrational forms of guilt areassociated with psychological well-being. The author emphasises that the study is far from completion and requires a more detailed knowledge of both interpersonal dependence and non-adaptive forms of guilt.

Art, image and environment: revisualizing Bali in the Plastiliticum

ABSTRACTThis article deals with environmental activism in Balinese contemporary art. I demonstrate how young Balinese artists have used their creativity to give visibility and/or audibility to some of the main threats to Bali’s natural, social and cultural environments, including land reclamation projects and plastic waste pollution. I argue that their work is not to be narrowly interpreted as a heuristic device of the environmentalist movement or waste recycling campaigns. In terms of media, content and styles of representation and presentation, the artists engage with the socio-political histories and aesthetic regimes behind the economic developmentalism and consumer behaviour causing the various types of environmental destruction. They address the creative strategies of craftsmen, performers and visual artists that have constructed the image of Bali as a tropical paradise since colonial times, but also the anti-communist mass purges in the mid-1960s that paved the way for the neoliberal policies and large-scale tourism projects of the New Order regime. Some of their work suggests that more sustainable relations between humans and nature can only be achieved if environmental action is combined with deep reconnections with Balinese cultural and spiritual values and traditions, beyond their clichéd representations in tourism campaigns and consumer ads.

Physico-chemical and pharmaco-technological research at a substantiation of rational composition and technology of suppositories «indoxam»

The development of new highly effective drugs in the form of rectal suppositories for the treatment of diseases of the prostate gland does not lose its relevance today, since the number of patients with these pathologies is increasing every year. These diseases adversely affect the physical, psychological health and quality of life of men in general. An important issue in the substantiation of the composition and development of the technology for the production of suppositories is the study of their physico-chemical and pharmaco-technological properties that directly affect their consumer qualities and the mode of the technological process. Aim of the work was the study of the physico-chemical and pharmaco-technological properties of the combined rectal suppositories Indoxam to select rational conditions of the technological process. Materials and methods . In order to substantiate the composition and technology of the combined rectal suppositories “Indoxam”, modern physicochemical (thermal analysis, rotational viscometry method) and pharmaco-technological (disintegration suppositories, resistance to degradation) studies were used according to the requirements of SPHU. Results. To select the optimal ratio of polyethylene oxides in the suppository base, the resistance of suppositories to destruction and the disintegration time of samples made with different amounts of PEO-1500 and PEO-400 were studied. To determine the optimal technology for the preparation of the drug, a study was made of the decomposition temperature of the API, which makes it possible to determine the temperature regimes for the preparation of suppositories and the introduction of active substances into the base without the risk of destroying the structure of substances and changing their pharmacological actions. Since, under the influence of mechanical, thermal, and other actions, several types of destruction undergo suppositories, their rheological characteristics are also investigated. Conclusions . The results of pharmaco-technological research allowed to substantiate the optimal ratio of polyethylene oxides in suppository basis. The conducted thermogravimetric analysis of API and suppositories «Indoxam» established the thermal stability of substances and the absence of chemical interaction between the components in the composition of rectal drug. According to the rheological characteristics, the system identified the thixotropy and the optimal pouring temperature of the suppository mass

OsWRKY67 positively regulates blast and bacteria blight resistance by direct activation of PR genes in rice

BackgroundWRKY proteins are one of the largest gene families and are well-known for their regulatory roles in many aspects of plant development, including plant response to both biotic and abiotic stresses. Although the roles of WRKY proteins in leaf blast resistance have been well-documented in rice, their functions in panicle blast, the most destructive type of blast disease, are still largely unknown.ResultsHere, we identified that the transcription of OsWRKY67 was strongly activated by leaf and panicle blast infection. OsWRKY67 is ubiquitously expressed and sub-localized in the nucleus. Rice plants overexpressing OsWRKY67 showed quantitatively enhanced resistance to leaf blast, panicle blast and bacterial blight. In contrast, silencing of OsWRKY67 increased the susceptibility to blast and bacterial blight diseases. RNA-seq analysis indicated that OsWRKY67 induces the transcription of a set of defense-related genes including the ones involved in the salicylic acid (SA)-dependent pathway. Consistent with this, the OsWRKY67-overexpressing plants accumulated higher amounts of endogenous SA, whereas lower endogenous SA levels were observed in OsWRKY67-silenced plants relative to wild-type Nipponbare plants before and after pathogen attack. Moreover, we also observed that OsWRKY67 directly binds to the promoters of PR1a and PR10 to activate their expression.ConclusionsThese results together suggest the positive role of OsWRKY67 in regulating rice responses to leaf blast, panicle blast and bacterial blight disease. Furthermore, conferring resistance to two major diseases makes it a good target of molecular breeding for crop improvement in rice.

Investigation of the Hydrogen Stratification of the Metal of the Active Gas Pipeline

One of the most common types of metal destruction in the oil and gas industry is hydrogen embrittlement. Hydrogen corrosion is a complex of negative effects of hydrogen on steel, leading to the destruction of metal structures. Hydrogen passes through a defect-free metal, without lingering in it. In the presence of defects, hydrogen is retained in the metal forming a brittle solid solution, metal stratification along the segregation streamer, blistering. Studies of the metal of a gas pipeline made of steel 09G2S are presented in the article. The sample was selected from the local zone of destruction in the condensate collector, the metal of the pipe had typical for hydrogen corrosion stratifications. The scope of the study was identification of the most dangerous part of hydrogen corrosion on the sample taken from the local zone of destruction. Studies on the chemical composition and mechanical properties of 09G2S steel were also carried out. Stress-related characteristics of the metal microstructure of the failed gas pipeline were obtained and the character of the destruction progress was revealed. The presence of sulfides cluster in the metal of studied pipe was determined applying metallographic method for determining nonmetallic inclusions.

Experimental analysis of vibration and sound in order to investigate chatter phenomenon in cold strip rolling

Chatter is one of the most destructive types of vibration which usually occurs in cold strip rolling at high speeds. There is a minimum critical speed at which chatter mechanism may activate. Once the chatter has occurred, mill vibration is then become unstable. Its distinct sound is the most important sign for operators in order to identify chatter. As soon as chatter happens, the mill and its huge foundation vibrate with a sound as a mobile phone vibration. In these conditions, the only way to avoid hazardous damages is to reduce the rolling speed immediately. This paper is an application of sound analysis for solving chatter problem in cold strip rolling which is supported by experimental data. The results showed that upper housing and backup roll, compared with other parts, are more sensitive to chatter and more appropriate for installation of chatter detection sensors. Frequency analysis of recorded signals showed that at the time of chatter occurrence, dominant frequency in vibration signals of all parts of the stand and sound signal is equal. This frequency is in the range of third-octave chatter. It was also found that from the beginning of acceleration growth to hearing the chatter sound lasts less than 200 μs. Therefore, in the absence of automatic chatter detection systems, chatter sound is the best strategy for detecting and preventing the chatter.

Imaging diagnosis of brucella spondylitis and tuberculous spondylitis

Objective: To compare the characteristics of X-ray, CT and MRI of Brucella spondylitis and tuberculous spondylitis and its significance for differential diagnosis. Methods: A total of 10 cases of Brucella spondylitis and 20 cases of tuberculous spondylitis confirmed from the clinical, laboratory or pathological department were enrolled between January 2014 and August 2017 in the Fifth Affiliated Hospital of Sun Yat-sen University and the Third Affiliated Hospital of Southern Medical University. The CT, MRI findings were retrospectively analyzed to improve the differential diagnosis of these two diseases. Results: Of the 10 cases of Brucella spondylitis, 8 were located only in the lumbosacral vertebrae, 1 in the thoracic vertebrae only, 1 in the cervical and thoracic vertebrae, 8 with invasive bone destruction, and 8 with narrowed intervertebral space. In 9 cases of intervertebral disc destruction, 7 cases developed paravertebral abscesses, 3 cases had sclerotic edges, all cases had no vertebral body flattening, 5 cases invaded the accessory, 4 cases formed sequestrum, and 6 cases invaded the spinal canal. There were 3 cases showing invasion of surrounding muscles. In 20 cases of tuberculous spondylitis, 12 cases were located in the lumbosacral vertebrae, 6 cases in the thoracic vertebrae only, 1 involved the thoracic vertebrae and lumbosacral vertebrae, 1 involved the neck, chest, and lumbosacral vertebrae. Bone destruction of bone, 19 cases of intervertebral space narrowing, 20 cases of intervertebral disc destruction, 18 cases of paraspinal abscess formation, 10 cases of sclerotic edge formation, 6 cases of vertebral body flattened, 16 cases of invading attachment. There were 17 cases of sequestrum formation, 13 cases of invasion of the spinal canal, and 12 cases of violation of surrounding muscles. There were statistical differences between the two types of imaging signs such as the type of vertebral destruction and the presence or absence of sequestrum. Conclusion: The type of vertebral destruction and the presence or absence of imaging features such as sequestrumwill facilitate the differential diagnosis of Brucella spondylitis and tuberculous spondylitis.

IDENTIFIKASI SERANGGA DAN FAKTOR ABIOTIK PERUSAK NASKAH KUNO SEBAGAI UPAYA PELESTARIAN BUDAYA PALEMBANG

The manuscript is one of the relics of the past owned by the people of Indonesia. The manuscript stored a number of past information that shows the thoughts, feelings, beliefs, customs, and values that apply to past societies. Manuscripts are available in various regions in Indonesia, one of them in Palembang. Malay manuscripts are texts written in Malay which are generally Arabic-Malay (Jawi). The existence of this ancient manuscript located in vulnerable society will be damaged . The importance of biological knowledge to this text makes provision for society and government in an effort to keep the extinct. Objectives of the research are to know the form and type of destruction of manuscripts, factors causing damage, to identify the types of biota and insects that destroyed and also how to cope with the presence of insects and biota in Malay manuscript storage. The research with a descriptive quantitative approach. The sampling of insects and biota by hand collecting method. Identified insect use to morphometric technique. The results are found 11 species of insects from 5 orders and 6 families. Cause damage to manuscripts in Palembang include as physical and chemical factors. Processes causing the destruction of manuscripts include biological factors
 
 Keyword: Identification Insect and abiotic factors, Manuscript Malay in Palembang

LATENT PERIOD OF STRESS CORROSION CRACKING DEVELOPMENT AT THE MAIN PIPELINES

One of the unsolved problems in pipeline transport is the insufficient study of the phenomenon of stress corrosion cracking, which is often observed at the main gas pipelines and practically does not appear at the main oil pipelines, despite the fact that these pipelines are built according to same construction standards, practically from the same pipes, are operated under close conditions. Firstly, it does not allow to find effective methods against cracking at main gas pipelines, and secondly, it does not give an opportunity to answer the important question whether further development of corrosion cracking at main oil pipelines should be feared in the future. Aims and Objectives The article poses a problem on the basis of analysis of various manifestations of pipe cracking, the study of known features and regularities, to find the mechanisms for the development of this phenomenon, to construct its physical model, and on its basis to try to answer the question posed. Results A physical model of stress corrosion cracking of underground pipelines has been developed, which makes it possible to explain all observed regularities of this type of destruction. The model is based on the determining role of hydrogen, indicates possible sources of hydrogen on underground pipelines, the patterns of interaction of hydrogen with the pipeline metal, shows the causes of increased internal stresses and cracking of the wall. According to this model, stress corrosion cracking occurs successively in several stages. The first stage is the latent period of development, when there is no cracking yet, but inside the metal of the pipes there are significant changes: the growth of internal stresses due to the accumulation of gas molecules H2 and CH4 at grain boundaries of the crystal structure. At the same time, structural changes occur in the crystals, decarburization and growth of the grains. The second stage - the birth of microcracks, their growth and integration into macrocracks. This is facilitated by stresses caused by working pressure and external forces. One of the components of external forces - the reaction of the soil, which is particularly important in areas with complex uneven terrain. The third stage is the growth of macrocracks before the destruction of the pipeline. Before the completion of the first stage, the remaining stages can not occur. In this lie the answers to the questions posed, as well as the methods of inhibition of cracking in general. For each of these stages, certain conditions are necessary. For the flow of the first stage, a source of atomic hydrogen is needed. Such source on underground pipelines is ground moisture (water) in the presence of electrochemical potential. This source only operates in places of insulation failure. Another necessary condition at the first stage is the presence of tensile mechanical stresses above a certain critical level - the stress corrosion limit. The proposed physical model has been experimentally confirmed by studying the patterns of introduction of hydrogen into the wall of the pipeline. On the basis of this physical model, it was concluded that on the main oil pipelines it is possible to develop stress corrosion cracking in local zones, where a concentration of stresses is created, and insulation in these zones either is absent or worn out.

Conventional Radiography and MRI Diagnosis of Bone Tumors Developed at the Knee

Abstract Introduction. It is known that bone tumors have a predilection to develop for a certain skeletal bone segment. Also, bone tumors have a predilection for certain age groups. The knee is a common site for bone tumors. Purpose. Presentation of diagnostic parameters of conventional radiography as the first technique in the detection and characterization of bone tumors developed at the knee level and the criteria for differentiation of the malignant substrate from the benign (the type of bone destruction, the type of periosteal response, poorly defined margins) one. The value of MRI is also presented and illustrated as a unique imaging technique that allows the direct visualization of bone marrow with high spatial resolution for local staging of bone tumors. Material and method. The present study aimed to investigate the radiographic and MRI imaging characteristics of bone tumors developed at the knee joint, which were retrospectively analyzed (October 2007 and November 2017) in a selected group of 91 patients. The limit of age between 11 and 67 years, 73(70%) men, 18 (30%) women. Examination protocol: complete clinical examination, radiographic knee examination in anteroposterior and lateral incidents. MRI standard protocol, native, and post paramagnetic contrast. Results. Conventional Radiographic and MRI have been detected and characterized a number of 55 (67%) primary malignant bone tumors confirmed by histopathological diagnosis, ranging from 8 histopathological types and 37 (33%) cases of benign tumors with 9 histopathological types. Conclusions. Radiological examination is the first investigation in the evaluation of knee bone tumors, suggesting the malignant nature expressed by the badly defined margin, bone destruction, discontinuous peristaltic reaction, and extension to the soft parts. MRI is a unique imaging technique that allows direct visualization of bone marrow with high spatial resolution and best tool for local staging of bone tumors.

Allergy immunotherapy restores airway epithelial barrier dysfunction through suppressing IL-25 -induced endoplasmic reticulum stress in asthma

Constant exposure to allergen triggers destructive type 2 cell-mediated inflammation. The effect of allergen specific immunotherapy (SIT) in maintaining airway epithelial barrier function in asthma remains unknown. In the current study, we showed that SIT maintained airway epithelial homeostasis in mice exposed to dermatophagoides farinae (Der f), which induced increased expression of IL-25, endoplasmic reticulum (ER) stress and airway epithelial apoptosis. Meanwhile, SIT treatment ameliorated airway inflammatory infiltration and hyper-responsiveness in allergic mice. SIT treatment restored the airway epithelial integrity, attenuated Der f -induced airway epithelial ER stress and epithelial apoptosis. We also found that 4-PBA, an inhibitor of ER stress, suppressed airway epithelial ER stress and apoptosis in vitro. The pathological changes were partially induced by IL-25-induced ER stress, epithelial tight junction damage, and cell apoptosis in airways following allergen exposure. Furthermore, IL-25 induced ER stress in airway epithelial cells in vitro. The IL-25-induced airway epithelial apoptosis dependent on PERK activity was inhibited by 4-PBA. Taken together, we demonstrate that SIT is effective in allergic asthma and dependent on its depressive effect on the expression of IL-25, epithelial integrity damage, and epithelial ER stress.

Automatic segmentation of chondroblastoma from X-ray images using active contour and levelset method

Chondroblastoma is a benign but locally aggressive bone tumor found usually in the age below 25 years. Chondroblastoma is a destructive type of lesion with a thin radio dense border which is normally seen in the epiphysis of long bones. The benign tumors have similarities in pathology and could be related with histogenic similarity. This tumor reduces the strength of affected bone and may leads to death if not treated early. Chondroblastoma can be diagnosed from X-ray/CT/MRI images and the treatment is its removal by surgical methods. Diagnosis of Chondroblastoma is difficult due to the similarities with other benign tumors like chondromyxoid fibroma. To reduce diagnostic errors, computer aided methods can adopt. This work focuses on automatic segmentation of Chondroblastoma using active contour and level set method which gives better segmentation results and a mild stone to CAD design.

The entrepreneurship of host cities of the Olympic Games – Between success and social destruction

Many publications focus on the deficit nature of the Olympic Games organisation, when considered from the point of view of host cities – organisers of such events. However, does such an event actually affect the region and the host country in a positive way? The presented article aims at the assessment of the organisation of mass sports events, such as the Olympic Games, taking into consideration entrepreneurial activities which can be defined in terms of a productive, destructive or socially destructive category. In order to determine the relevant types of entrepreneurship, the authors refer to well-established definitions (in the case of productive and socially destructive types) and to their own, original definition of destructive entrepreneurship.

Advanced casualty estimation based on tsunami evacuation intended behavior: case study at Yuigahama Beach, Kamakura, Japan

Tsunamis are some of the most destructive types of natural hazards that can affect coastal areas. To optimize tsunami mitigation measures, it is important to estimate the potential casualties that can result from one of these events. Taking into account tsunami awareness and the possible evacuation behavior of at-risk individuals is necessary to estimate the number of casualties, though most of the research carried out to date has not considered detailed evacuation behavior when conducting simulations. In the present study, the authors proposed a new approach to estimating the number of tsunami casualties, based on a tsunami evacuation simulation model that considers the evacuation behavior of local residents, tourists and beach users. Such behavior parameters were incorporated by analyzing the results from previous questionnaires surveys. The model was applied to Yuigahama Beach in Kamakura City, Japan, with the aim of assessing potential tsunami casualties and providing suggestions regarding tsunami mitigation measures. The authors conducted seven tsunami inundation simulations for different earthquake scenarios, and then casualties were estimated considering six different evacuation scenarios. Based on the simulation results, it appears particularly important to attempt to improve the intended evacuation behavior of both the local population and visitors. Particularly, providing information about safe places and the routes to reach them is necessary, as prompt evacuation and heading to higher ground were found to be insufficient behavior to save lives during a tsunami event.

Transmission of High Frequency Vibrations in Rotating Systems. Application to Cavitation Detection in Hydraulic Turbines

One of the main causes of damage in hydraulic turbines is cavitation. While not all cavitation appearing in a turbine is of a destructive type, erosive cavitation can severely affect the structure, thus increasing maintenance costs and reducing the remaining useful life of the machine. Of all types of cavitation, the maximum erosion occurs when clouds of bubbles collapse on the runner surface (cloud cavitation). When this occurs it is associated with a substantial increase in noise, and vibrations that are propagated everywhere throughout the machine. The generation of these cavitation clouds may occur naturally or it may be the response to a periodic pressure fluctuation, like the rotor/stator interaction in a hydraulic turbine. Erosive bubble cavitation generates high-frequency vibrations that are modulated by the shedding frequency. Therefore, the methods for the detection of erosive cavitation in hydraulic turbines are based on the measurement and demodulation of high-frequency vibrations. In this paper, the feasibility of detecting erosive cavitation in hydraulic turbines is investigated experimentally in a rotating disk system, which represents a simplified hydraulic turbine structure. The test rig used consists of a rotating disk submerged in a tank of water and confined with nearby axial and radial rigid surfaces. The excitation patterns produced by cloud cavitation are reproduced with a PZT (piezoelectric patch) located on the disk. These patterns include pseudo-random excitations of different frequency bands modulated by one low carrier frequency, which model the erosive cavitation characteristics. Different types of sensors have been placed in the stationary and in the rotating parts (accelerometers, acoustic emission (AE), and a microphone) in order to detect the excitation pattern. The results obtained for all the sensors tested have been compared in detail for the different excitation patterns applied to the disk. With this information, the best location and type of sensor to detect the different excitations have been identified. This study permits improving the actual technique of detecting erosive cavitation in hydraulic turbines and, therefore, to avoid operation under these circumstances.

The Stress–Strain State of Recent Structures in the Northeastern Sector of the Russian Arctic Region

Complex research to determine the stress–strain state of the Earth’s crust and the types of seismotectonic destruction for the northeastern sector of the Russian Arctic was conducted. The principles of regional ranking of neotectonic structures were developed according to the activity of geodynamic processes, and argumentation for their class differentiation is presented. The structural-tectonic position, the parameters of the deep structure, the system of active faults, and the tectonic stress fields, calculated on the basis of both tectonophysical analysis of discontinuous and folded late Cenozoic deformations and seismological data, were analyzed. This complex of investigations made it possible to determine the directions of the main axes of deformations of the stress–strain state of the Earth’s crust and to reveal the regularity in the change of tectonic regimes.

On the Estimation of Seismic Resistance of Modern Composite Oil Pipeline Elements

The initiation of seismic activity on the continental shelf and its destructive effect on composite oil pipelines laid on the seabed is modeled numerically. The dynamic behavior of the medium is described by determining systems of elasticity and acoustic equations with an explicit separation of all layers. The composite is described as an orthotropic material. An algorithm is proposed that estimates the amount and type of oil pipeline destruction at a given level of seismic activity and given strength characteristics of the composite. A distinctive feature of the developed approach is that the problem is split into two stages calculated on different scales: the full-wave computation of seismic wave propagation from the earthquake source to the day surface and the computation of a composite pipeline element as an anisotropic object of complex shape. A grid-characteristic method on hexahedral and tetrahedral grids is used for the numerical computation.

Research of biodegradation and antimicrobial properties of polyvinyl chloride sheetings with pectin and starch additives

The paper describes a new methodof stability assessment of polymericmaterials to destruction caused by various factors (such as mechanical loads, moisture and microorganisms' vital activity). This method includes puncture resistance comparison of researched material samples, determined after nine-day incubation of these samples in liquid nutrient medium with test microorganisms and daily 40 vol.% substitution of this medium for a sterile one, as well as after incubation of similar samples in a sterile medium, and without incubation of these samples. The described methodwas used to study stability of a number of new polymericmaterials to various types of destruction. The materials were made on the basis of vinyl chloride polymer with addition of 0, 1, 5 and 10 mass.% of starch and pectin. The effect of the mentioned materials on the growth and metabolicactivity in liquid nutrientmedium ofEscherichia coliATCC 25922 was studied also (according to dynamics of intensity change of elastic optical dispersion and conductivity of the mentioned medium during the first ten hours of its incubationat the presence of tested objects and test microorganisms). As a result, it is shown that all researched materials are resistant to moisture action. At the same time, allused additives even in 1 mass.% quantity considerably reduced mechanical strength of researched materials compared with pure vinyl chloride polymer; as well as increased biodegradationof thesematerials(though in substantially smaller degree at small quantities of the additives). Moreover,the lattereffect was provided by the addition of starchto vinyl chloride polymerin considerably greater degree, than the addition of pectin.Besides, all used additives reduced the antimicrobialeffect of the polyvinyl chloride base of researched materials. The more starch or pectin was contained in researched material, the greater reduction occurred; at the identical quantity of them it occurred in the presence of starch to a greater extent, than in the presence of pectin.

ОПЫТНЫЕ ПРОМЫСЛОВЫЕ ИСПЫТАНИЯ ТРУБ НЕФТЯНОГО СОРТАМЕНТА

The depletion of the existing and the introduction of new oil fields lead to the continuously growing corrosion activity of the produced fluids what increases the intensity of breakdown of the oil field equipment. To ensure the adequate working capacity, it is necessary to develop and apply new steels with the increased strength and corrosion resistance. It is necessary as well to increase the volume and to develop new methods of field tests; based on such tests only it is possible to obtain the reliable understanding of the mechanisms and the kinetics of the ongoing processes of the corrosive-mechanical destruction and to assess the working capacity of the pipeline systems under the actual operating conditions of a certain field. The authors present the developed techniques of three main types of pilot tests: the bypass lines, the intermittent monitoring of production strings and the intermittent monitoring of the operating pipelines. The characteristic feature of the suggested tests is the systematic comparative analysis of the current state with the states before operating and the states of preceding stages of tests. For this reason, pilot tests come with the additional tests that are combined in two groups according to their functionality. The first group characterizes the initial state of metal and the change of its properties after tests (chemical and phase composition, the structural condition of metal, mechanical properties, corrosion resistance). The second group characterizes the corrosion damage of the pipeline inner surface caused by the tests (the inner surface condition; the identification of the prevailing type of the corrosive destruction; the evaluation of the rate of general and local corrosion; phase and chemical composition and the morphology of corrosion products; microbiology testing). The suggested testing techniques allow obtaining the fullest information on the operating capacity and the kinetics of pipes failure development under the certain operating conditions. As an example, the authors describe the results of comparative field tests of the TBG production strings made of 15H5MFBCh steel and of 35G2S and 35G2F conventional steels when operating on five fields with different composition of produced fluids.