252 research outputs found

    Computer-assisted access to the kidney

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    OBJECTIVES: The aim of this paper is to introduce the principles of computer-assisted access to the kidney. The system provides the surgeon with a pre-operative 3D planning on computed tomography (CT) images. After a rigid registration with space-localized ultrasound (US) data, preoperative planning can be transferred to the intra-operative conditions and an intuitive man-machine interface allows the user to perform a puncture. MATERIAL AND METHODS: Both CT and US images of informed normal volunteer were obtained to perform calculation on the accuracy of registration and punctures were carried out on a kidney phantom to measure the precision of the whole of the system. RESULTS: We carried out millimetric registrations on real data and guidance experiments on a kidney phantom showed encouraging results of 4.7 mm between planned and reached targets. We noticed that the most significant error was related to the needle deflection during the puncture. CONCLUSION: Preliminary results are encouraging. Further work will be undertaken to improve efficiency and accuracy, and to take breathing into account

    Geology-structural position and specialization of granitoid the Amalat plateau

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    ΠŸΡ€Π΅Π΄ΡΡ‚Π°Π²Π»Π΅Π½Ρ‹ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹ изучСния Π³Π΅ΠΎΠ»ΠΎΠ³ΠΎ-структурной ΠΏΠΎΠ·ΠΈΡ†ΠΈΠΈ ΠΈ спСциализации Π³Ρ€Π°Π½ΠΈΡ‚ΠΎΠΈΠ΄ΠΎΠ² Амалатского ΠΏΠ»Π°Ρ‚ΠΎ. ΠžΠΏΡ€Π΅Π΄Π΅Π»Π΅Π½ ΠΌΠΈΠ½Π΅Ρ€Π°Π»ΡŒΠ½Ρ‹ΠΉ ΠΈ элСмСнтный состава Π³Ρ€Π°Π½ΠΈΡ‚ΠΎΠΈΠ΄ΠΎΠ² Ρ„ΡƒΠ½Π΄Π°ΠΌΠ΅Π½Ρ‚Π°. УстановлСно, Ρ‡Ρ‚ΠΎ Π³Ρ€Π°Π½ΠΈΡ‚ΠΎΠΈΠ΄Ρ‹ Ρ„ΡƒΠ½Π΄Π°ΠΌΠ΅Π½Ρ‚Π° прСдставлСны Π»Π΅ΠΉΠΊΠΎΠΊΡ€Π°Ρ‚ΠΎΠ²Ρ‹ΠΌΠΈ Π±ΠΈΠΎΡ‚ΠΈΡ‚ΠΎΠ²Ρ‹ΠΌΠΈ Π³Ρ€Π°Π½ΠΈΡ‚Π°ΠΌΠΈ субщСлочного ряда, ΠΎΠΏΡ€Π΅Π΄Π΅Π»Π΅Π½Ρ‹ основныС ΠΏΠΎΡ€ΠΎΠ΄ΠΎΠΎΠ±Ρ€Π°Π·ΡƒΡŽΡ‰ΠΈΠ΅ ΠΌΠΈΠ½Π΅Ρ€Π°Π»Ρ‹, акцСссорная минСрализация (Π°ΠΏΠ°Ρ‚ΠΈΡ‚, Ρ†ΠΈΡ€ΠΊΠΎΠ½, сфСн, ΠΌΠ°Π³Π½Π΅Ρ‚ΠΈΡ‚, ΠΌΠΎΠ½Π°Ρ†ΠΈΡ‚, ксСнотим) ΠΈ ΠΌΠΈΠ½Π΅Ρ€Π°Π»Ρ‹ носитСли ΡƒΡ€Π°Π½Π°. УстановлСна высокая Ρ€Π°Π΄ΠΈΠΎΠ°ΠΊΡ‚ΠΈΠ²Π½ΠΎΡΡ‚ΡŒ Π³Ρ€Π°Π½ΠΈΡ‚ΠΎΠΈΠ΄ΠΎΠ² Ρ„ΡƒΠ½Π΄Π°ΠΌΠ΅Π½Ρ‚Π° Ρ‚ΠΎΡ€ΠΈΠΉ-ΡƒΡ€Π°Π½ΠΎΠ²ΠΎΠΉ ΠΈ ΡƒΡ€Π°Π½ΠΎΠ²ΠΎΠΉ ΠΏΡ€ΠΈΡ€ΠΎΠ΄Ρ‹. The results of the studying of Geology-structural position and specialization of granitoid the Amalat table land. The mineral and element structure of granitoids' base was stated. It has been stated that granitoids in basement consist of leucocratic biotite granite of subalkaline row. The major rock-forming, accessory (apatite, zircon, sphen, magnetite, monazite, xenotime),and uranium-bearing minerals have been determined. High radioactivity of basement granitoids of thorium-uranium and uranium origin was stated

    Stimulation of commercial coal seam methane production aimed at improving mining technology

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    The relevance of the current research is due to the urgent need to revise the existing normative bases and procedures involved in intensive development of coal-methane deposits and commercial production of coal seam methane. The article presents the analysis of data on coal production volume and amount of methane emitted into the atmosphere in Kuzbass. There is a need to develop the exploration techniques that would allow implementing pre-mining gas drainage of coal seams and provide the companies with the guidance on coal seam methane drainage in very gassy coal mines. Commercial production of methane should become an integral part of economy and energy balance of the Russian Federation, which, in its turn, would enhance environmental protection due to reducing methane emissions, the largest source of greenhouse effect

    Анализ ΡΡƒΡ‰Π΅ΡΡ‚Π²ΡƒΡŽΡ‰ΠΈΡ… Ρ‚Π΅Ρ…Π½ΠΎΠ»ΠΎΠ³ΠΈΠΉ восстановлСния гСрмСтичности эксплуатационной ΠΊΠΎΠ»ΠΎΠ½Π½Ρ‹ Π² процСссС эксплуатации нСфтяных мСстороТдСний

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    ΠžΠ±ΡŠΠ΅ΠΊΡ‚ΠΎΠΌ исслСдования являСтся нСфтяная скваТина, эксплуатируСмая Π² ослоТнСнных условиях Π½Π° Π‘Π΅Π²Π΅Ρ€ΠΎ-ΠžΡΡ‚Π°Π½ΠΈΠ½ΡΠΊΠΎΠΌ мСстороТдСнии Вомской области. ИсслСдованиС Π²ΠΊΠ»ΡŽΡ‡Π°Π΅Ρ‚ Π² сСбя Ρ‚Π°ΠΊΠΈΠ΅ ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹ получСния ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΈ, ΠΊΠ°ΠΊ ΡΡ€Π°Π²Π½ΠΈΡ‚Π΅Π»ΡŒΠ½Ρ‹ΠΉ Π°Π½Π°Π»ΠΈΠ·, историчСскиС Π΄Π°Π½Π½Ρ‹Π΅ ΠΈ промысловыС Π΄Π°Π½Π½Ρ‹Π΅.ΠŸΠΎΠ»ΡƒΡ‡Π΅Π½Π½Π°Ρ информация ΠΌΠΎΠΆΠ΅Ρ‚ Π±Ρ‹Ρ‚ΡŒ Π°ΠΊΡ‚ΠΈΠ²Π½ΠΎ использована ΠΏΡ€ΠΈ ΠΏΡ€ΠΎΠ²Π΅Π΄Π΅Π½ΠΈΠΈ Ρ€Π΅ΠΌΠΎΠ½Ρ‚Π½ΠΎ-изоляционных Ρ€Π°Π±ΠΎΡ‚.ЦСлью Π΄Π°Π½Π½ΠΎΠΉ Ρ€Π°Π±ΠΎΡ‚Ρ‹ являСтся Π°Π½Π°Π»ΠΈΠ· ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠ² восстановлСния цСлостности эксплуатационной ΠΊΠΎΠ»ΠΎΠ½Π½Ρ‹ ΠΏΡ€ΠΈ Ρ€Π°Π·Ρ€Π°Π±ΠΎΡ‚ΠΊΠ΅ ΠΈ эксплуатации нСфтяного мСстороТдСния Π² Π—Π°ΠΏΠ°Π΄Π½ΠΎΠΉ Π‘ΠΈΠ±ΠΈΡ€ΠΈ. РассмотрСниС ΠΏΡ€ΠΈΡ‡ΠΈΠ½, Π²Ρ‹Π·Ρ‹Π²Π°ΡŽΡ‰ΠΈΡ… ΡƒΡ…ΡƒΠ΄ΡˆΠ΅Π½ΠΈΠ΅ гСрмСтичности эксплуатационной ΠΊΠΎΠ»ΠΎΠ½Π½Ρ‹.The object of research is an oil well that is operated in complicated conditions at the Severo-Ostaninsky field in the Tomsk region. The research involves such methods of obtaining information as comparative analysis, historical data, and fishing data.The obtained information can be actively used during repair and insulation works.The purpose of this work is to analyze methods for restoring the integrity of the production column during the development and operation of an oil field in Western Siberia. Consideration of the reasons for the deterioration of tightness

    ВСхнологичСскиС Ρ€Π΅ΡˆΠ΅Π½ΠΈΡ для ΡΡ‚Ρ€ΠΎΠΈΡ‚Π΅Π»ΡŒΡΡ‚Π²Π° эксплуатационной Π½Π°ΠΊΠ»ΠΎΠ½Π½ΠΎ-Π½Π°ΠΏΡ€Π°Π²Π»Π΅Π½Π½ΠΎΠΉ скваТины Π³Π»ΡƒΠ±ΠΈΠ½ΠΎΠΉ 2850 ΠΌΠ΅Ρ‚Ρ€ΠΎΠ² Π½Π° Игольско-Π’Π°Π»ΠΎΠ²ΠΎΠΌ нСфтяном мСстороТдСнии (Вомская ΠΎΠ±Π»Π°ΡΡ‚ΡŒ)

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    ΠžΠ±ΡŠΠ΅ΠΊΡ‚ΠΎΠΌ Ρ€Π°Π±ΠΎΡ‚Ρ‹ эффСктивный ΡΠ²Π»ΡΡŽΡ‚ΡΡ эксплуатационная Ρ€Π°Π±ΠΎΡ‚Ρ‹ скваТина для Π΄ΠΎΠ±Ρ‹Ρ‡ΠΈ Π½Π΅Ρ„Ρ‚ΠΈ. ЦСль Ρ€Π°Π±ΠΎΡ‚Ρ‹ - ΠΏΡ€ΠΎΠ΄ΡƒΠΊΡ‚ΠΈΠ²Π½Ρ‹ΠΉ Ρ€Π°Π·Ρ€Π°Π±ΠΎΡ‚ΠΊΠ° Ρ‚Π΅Ρ…Π½ΠΈΠΊΠΈ ΠΈ конструкция Ρ‚Π΅Ρ…Π½ΠΎΠ»ΠΎΠ³ΠΈΠΈ бурСния Π±ΡƒΡ€ΠΎΠ²ΠΎΠΉ эксплуатационной скваТины Ρ‚Π΅Ρ…Π½ΠΎΠ»ΠΎΠ³ΠΈΠΈ Π³Π»ΡƒΠ±ΠΈΠ½ΠΎΠΉ 2850 ΠΌΠ΅Ρ‚Ρ€ΠΎΠ² Π½Π° Игольско-Π’aΠ»ΠΎΠ²ΠΎΠΌ мСстороТдСнии. Π Π°Π±ΠΎΡ‚Π° Ρ€Π°Π·Ρ€Π°Π±ΠΎΡ‚ΠΊΠ° Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½Π° ΠΏΠΎ сроки гСологичСским ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»Π°ΠΌ Игольско-Π’aΠ»ΠΎΠ²ΠΎΠ³ΠΎ мСстороТдСния.Ob"yekt raboty effektivnyy - ekspluatatsionnaya rabota skvazhina dlya dobychi nefti. Tselevaya rabota - produktivnaya razrabotka i razrabotka tekhnologiy bureniya burovoy ekspluatatsionnoy skvazhiny tekhnologii glubinoy 2850 metrov na Igol'sko-Talovom mestorozhdenii. Rabota razrabotka po pogodnym geologicheskim materialam Igol'sko-Talovogo mestorozhdeniya

    Π Π°Π·Ρ€Π°Π±ΠΎΡ‚ΠΊΠ° тСхнологичСского процСсса изготовлСния Π΄Π΅Ρ‚Π°Π»ΠΈ Β«ΠšΠΎΡ€ΠΏΡƒΡ П-02699Β»

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    Π’ Ρ€Π°Π±ΠΎΡ‚Π΅ рассмотрСн тСхнологичСский процСсс изготовлСния Π΄Π΅Ρ‚Π°Π»ΠΈ "ΠšΠΎΡ€ΠΏΡƒΡ П-02699". ΠžΠΏΡ€Π΅Π΄Π΅Π»Π΅Π½ Ρ‚ΠΈΠΏ производства, Π²Ρ‹Π±Ρ€Π°Π½Π° исходная Π·Π°Π³ΠΎΡ‚ΠΎΠ²ΠΊΠ°, Π° Ρ‚Π°ΠΊΠΆΠ΅ спроСктирован ΠΌΠ°Ρ€ΡˆΡ€ΡƒΡ‚Π½Ρ‹ΠΉ ΠΈ ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΎΠ½Π½Ρ‹ΠΉ тСхнологичСский процСсс.In this paper we consider the technological process of manufacturing parts "Body P-02699". Determine the type of production, the initial preform is selected and designed routing and operational process
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