61 research outputs found

    Diffraction 2000: New Scaling Laws in Shadow Dynamics

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    New scaling structure for the shadow corrections in elastic scattering from deuteron at high energies has been presented and discussed. It is shown that this structure corresponds to the experimental data on proton(antiproton)-deuteron total cross sections. The effect of weakening for the inelastic screening at superhigh energies has been theoretically predicted.Comment: LaTex2e, espcrc2.sty, 2 figures, Contribution to the Workshop "Diffraction 2000", Cetraro, Ialy, Sept. 2-7, 2000, to be published in proceedings of the Worksho

    Experimental study of self-induced transparency mode-locking in Ti:sapphire laser

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    In this paper, passive mode-locking in Ti:sapphire laser with a coherent absorber cells with rubidium vapor placed in the cavity is demonstrated experimentally. For the best of our knowledge these experiments are the first time experimental demonstration of passive mode-locking based on self-induced transparency regime in the coherent absorber. Up to now, such a regime has not been observed experimentally and was predicted only theoretically

    PHOTOIONIZATION OF HYDROGEN MOLECULAR ION BY ULTRASHORT PHOTO-PULSE

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    The probabilities of photoionization of hydrogen molecular ion by ultrashort laser field were evaluated on base of earlier developed trajectory method120-12

    The effects of non-universal extra dimensions on the radiative lepton flavor decays \mu\to e\gamma and \tau\to \mu\gamma in the two Higgs doublet model

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    We study the effect of non-universal extra dimensions on the branching ratios of the lepton flavor violating processes \mu\to e\gamma and \tau\to \mu\gamma in the general two Higgs doublet model. We observe that these effects are small for a single extra dimension, however, in the case of two extra dimensions there is a considerable enhancement in the additional contributions.Comment: 16 Pages, 9 Figure

    Investigation of erosion mechanisms and erosion products in divertor armour materials under conditions relevant to ELMs and mitigated disruptions in ITER

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    Carbon fibre composite (CFC) and tungsten were irradiated by intense plasma streams at plasma gun facilities MK-200UG and QSPA-T. The targets were tested by plasma loads relevant to Edge Localised Modes (ELM) and mitigated disruptions in ITER. Onset condition of material erosion and properties of erosion products have been studied.Π‘-Π‘ ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡ‚ Ρ– Π²ΠΎΠ»ΡŒΡ„Ρ€Π°ΠΌ Π±ΡƒΠ»ΠΈ ΠΏΡ–Π΄Π΄Π°Π½Ρ– Π²ΠΏΠ»ΠΈΠ²ΠΎΠ²Ρ– інтСнсивних ΠΏΠΎΡ‚ΠΎΠΊΡ–Π² ΠΏΠ»Π°Π·ΠΌΠΈ Π½Π° ΠΏΠ»Π°Π·ΠΌΠΎΠ²ΠΈΡ… ΠΏΡ€ΠΈΡΠΊΠΎΡ€ΡŽΠ²Π°Ρ‡Π°Ρ… МК-200UG Ρ– КБПП-Π’. ΠœΡ–ΡˆΠ΅Π½Ρ– випробувалися ΠΏΡ€ΠΈ ΠΏΠ»Π°Π·ΠΌΠΎΠ²ΠΈΡ… навантаТСннях, Ρ…Π°Ρ€Π°ΠΊΡ‚Π΅Ρ€Π½ΠΈΡ… для Π­Π›ΠœΡ–Π² ΠΉ ослаблСних Π·Ρ€ΠΈΠ²Ρ–Π² Π² Π†Π’Π•Π Ρ–. Π‘ΡƒΠ»ΠΈ ΠΏΡ€ΠΎΠ²Π΅Π΄Π΅Π½Ρ– дослідТСння ΠΏΠΎΡ‡Π°Ρ‚ΠΊΠΎΠ²ΠΈΡ… ΡƒΠΌΠΎΠ² Π΅Ρ€ΠΎΠ·Ρ–Ρ— ΠΌΠ°Ρ‚Π΅Ρ€Ρ–Π°Π»Ρ–Π² Ρ– властивостСй ΠΏΡ€ΠΎΠ΄ΡƒΠΊΡ‚Ρ–Π² Π΅Ρ€ΠΎΠ·Ρ–Ρ—.Π‘-Π‘ ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡ‚ ΠΈ Π²ΠΎΠ»ΡŒΡ„Ρ€Π°ΠΌ Π±Ρ‹Π»ΠΈ ΠΏΠΎΠ΄Π²Π΅Ρ€Π³Π½ΡƒΡ‚Ρ‹ Π²ΠΎΠ·Π΄Π΅ΠΉΡΡ‚Π²ΠΈΡŽ интСнсивных ΠΏΠΎΡ‚ΠΎΠΊΠΎΠ² ΠΏΠ»Π°Π·ΠΌΡ‹ Π½Π° ΠΏΠ»Π°Π·ΠΌΠ΅Π½Π½Ρ‹Ρ… ускоритСлях МК-200UG ΠΈ КБПУ-Π’. МишСни ΠΈΡΠΏΡ‹Ρ‚Ρ‹Π²Π°Π»ΠΈΡΡŒ ΠΏΡ€ΠΈ ΠΏΠ»Π°Π·ΠΌΠ΅Π½Π½Ρ‹Ρ… Π½Π°Π³Ρ€ΡƒΠ·ΠΊΠ°Ρ…, Ρ…Π°Ρ€Π°ΠΊΡ‚Π΅Ρ€Π½Ρ‹Ρ… для Π­Π›ΠœΠΎΠ² ΠΈ ослаблСнных срывов Π² ИВЭРС. Π‘Ρ‹Π»ΠΈ ΠΏΡ€ΠΎΠ²Π΅Π΄Π΅Π½Ρ‹ исслСдования Π½Π°Ρ‡Π°Π»ΡŒΠ½Ρ‹Ρ… условий эрозии ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»ΠΎΠ² ΠΈ свойств ΠΏΡ€ΠΎΠ΄ΡƒΠΊΡ‚ΠΎΠ² эрозии

    PHOTOIONIZATION OF HYDROGEN MOLECULAR ION BY ULTRASHORT PHOTO-PULSE

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    120-120The probabilities of photoionization of hydrogen molecular ion by ultrashort laser field were evaluated on base of earlier developed trajectory metho

    ΠŸΠ΅Ρ€Π²Ρ‹ΠΉ клиничСский ΠΎΠΏΡ‹Ρ‚ использования Ρ‚Π°Π±Π»Π΅Ρ‚ΠΈΡ€ΠΎΠ²Π°Π½Π½ΠΎΠΉ Ρ„ΠΎΡ€ΠΌΡ‹ фосфата натрия ΠΊΠΎΠ»ΠΎΠΊΠΈΡ‚ ΠΏΡ€ΠΈ ΠΏΠΎΠ΄Π³ΠΎΡ‚ΠΎΠ²ΠΊΠ΅ ΠΊ колоноскопии Π² России

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    The aim of the study was to evaluate the effectiveness and safety of sodium phosphate (NaP) for colon cleaning in clinical practice. Patients and methods: 63 patients were under observation. Of these, 32 took the tablet form of Na P. The control group consisted of 31 patients who were preparing for colonoscopy using the standard method using a two-regimen for preparation of polyethylene glycol 4000. Conditions for the use of the NaP-tablet form were evaluated using a scale of criteria for compliance with the recommended treatment regimen. Results. Adequate use of the tablet form of NaP was noted in 84% of patients. The main reasons for the inadequate training were non-compliance with the intake of 1 person (3.1%), non-compliance with the diet before preparation for the study - 3 people (9.4%). Evaluation of the quality of preparation for the study was carried out according to the Boston scale [1-3]. When esophagogastroduodenoscopy was carried out, 34.3% (11 patients) of patients showed changes in gastric mucosae of the stomach, of which possible association with the reception of the tablet form of NaP in 1 (3.1%). Drug withdrawal and preparation for study 1 (3.1%) were stopped. The compliance with the use of the tablet form of NaP was high, especially among patients who previously used other preparations for intestinal preparation. Conclusions: the use of the tablet form of NaP in preparing the colon for colonoscopy when compared with other methods of purification showed good results both in the quality of the patient’s preparation and in the continuity of the patients with this preparation in preparation and in the safety of its use, which coincides with the data of other randomized research.ЦСль исслСдования: ΠΈΠ·ΡƒΡ‡Π΅Π½ΠΈΠ΅ Ρ€Π°Π·Π»ΠΈΡ‡Π½Ρ‹Ρ… ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠ² ΠΏΠΎΠ΄Π³ΠΎΡ‚ΠΎΠ²ΠΊΠΈ ΠΊΠΈΡˆΠ΅Ρ‡Π½ΠΈΠΊΠ° ΠΊ ΠΈΠ½ΡΡ‚Ρ€ΡƒΠΌΠ΅Π½Ρ‚Π°Π»ΡŒΠ½Ρ‹ΠΌ исслСдованиям, ΠΎΡ†Π΅Π½ΠΊΠ° эффСктивности ΠΈ бСзопасности натрия фосфатов NaP (ΠšΠΎΠ»ΠΎΠΊΠΈΡ‚) для очистки толстой кишки Π² клиничСской ΠΏΡ€Π°ΠΊΡ‚ΠΈΠΊΠ΅. ΠŸΠ°Ρ†ΠΈΠ΅Π½Ρ‚Ρ‹ ΠΈ ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹: ΠΏΠΎΠ΄ наблюдСниСм Π½Π°Ρ…ΠΎΠ΄ΠΈΠ»ΠΎΡΡŒ 63 ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚Π°. Из Π½ΠΈΡ… 32 ΠΏΡ€ΠΈΠ½ΠΈΠΌΠ°Π»ΠΈ Ρ‚Π°Π±Π»Π΅Ρ‚ΠΈΡ€ΠΎΠ²Π°Π½Π½ΡƒΡŽ Ρ„ΠΎΡ€ΠΌΡƒ NaP (ΠšΠΎΠ»ΠΎΠΊΠΈΡ‚). ΠšΠΎΠ½Ρ‚Ρ€ΠΎΠ»ΡŒΠ½ΡƒΡŽ Π³Ρ€ΡƒΠΏΠΏΡƒ составили 31 ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚, ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Π΅ Π³ΠΎΡ‚ΠΎΠ²ΠΈΠ»ΠΈΡΡŒ ΠΊ колоноскопии стандартным ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠΌ с использованиСм Π΄Π²ΡƒΡ…Ρ€Π΅ΠΆΠΈΠΌΠ½ΠΎΠΉ схСмы ΠΏΠΎΠ΄Π³ΠΎΡ‚ΠΎΠ²ΠΊΠΈ полиэтилСнгликолСм 4000. Условия использования NaP-Ρ‚Π°Π±Π»Π΅Ρ‚ΠΈΡ€ΠΎΠ²Π°Π½Π½ΠΎΠΉ Ρ„ΠΎΡ€ΠΌΡ‹ ΠΎΡ†Π΅Π½ΠΈΠ²Π°Π»ΠΈ с ΠΏΠΎΠΌΠΎΡ‰ΡŒΡŽ ΡˆΠΊΠ°Π»Ρ‹ ΠΊΡ€ΠΈΡ‚Π΅Ρ€ΠΈΠ΅Π² соблюдСния ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚Π°ΠΌΠΈ Ρ€Π΅ΠΊΠΎΠΌΠ΅Π½Π΄ΡƒΠ΅ΠΌΠΎΠ³ΠΎ Ρ€Π΅ΠΆΠΈΠΌΠ° ΠΏΠΎΠ΄Π³ΠΎΡ‚ΠΎΠ²ΠΊΠΈ. Π Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹. АдСкватноС использованиС Ρ‚Π°Π±Π»Π΅Ρ‚ΠΈΡ€ΠΎΠ²Π°Π½Π½ΠΎΠΉ Ρ„ΠΎΡ€ΠΌΡ‹ NaP ΠΎΡ‚ΠΌΠ΅Ρ‡Π°Π»ΠΎΡΡŒ Ρƒ 84% ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ². ΠžΡΠ½ΠΎΠ²Π½Ρ‹ΠΌΠΈ ΠΏΡ€ΠΈΡ‡ΠΈΠ½Π°ΠΌΠΈ Π½Π΅Π°Π΄Π΅ΠΊΠ²Π°Ρ‚Π½ΠΎΠΉ ΠΏΠΎΠ΄Π³ΠΎΡ‚ΠΎΠ²ΠΊΠΈ стали нСсоблюдСниС Ρ€Π΅ΠΆΠΈΠΌΠ° ΠΏΡ€ΠΈΠ΅ΠΌΠ° ΠΏΡ€Π΅ΠΏΠ°Ρ€Π°Ρ‚Π° 1 Ρ‡Π΅Π» (3,1%), нСсоблюдСниС Π΄ΠΈΠ΅Ρ‚Ρ‹ ΠΏΠ΅Ρ€Π΅Π΄ ΠΏΠΎΠ΄Π³ΠΎΡ‚ΠΎΠ²ΠΊΠΎΠΉ ΠΊ исслСдованию - 3 Ρ‡Π΅Π» (9,4%). ΠžΡ†Π΅Π½ΠΊΡƒ качСства ΠΏΠΎΠ΄Π³ΠΎΡ‚ΠΎΠ²ΠΊΠΈ ΠΊ исслСдованию ΠΏΡ€ΠΎΠ²ΠΎΠ΄ΠΈΠ»ΠΈ ΠΏΠΎ Бостонской шкалС (1.2. 3.) ΠŸΡ€ΠΈ ΠΏΡ€ΠΎΠ²Π΅Π΄Π΅Π½ΠΈΠΈ эзофагогастродуодСноскопии Ρƒ 34,3% (11 Ρ‡Π΅Π») ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² выявлСны измСнСния БО ΠΆΠ΅Π»ΡƒΠ΄ΠΊΠ°, ΠΈΠ· Π½ΠΈΡ… возмоТная связь с ΠΏΡ€ΠΈΠ΅ΠΌΠΎΠΌ Ρ‚Π°Π±Π»Π΅Ρ‚ΠΈΡ€ΠΎΠ²Π°Π½Π½ΠΎΠΉ Ρ„ΠΎΡ€ΠΌΡ‹ NaP Ρƒ 1 (3,1%). ΠŸΡ€Π΅ΠΊΡ€Π°Ρ‚ΠΈΠ» ΠΏΡ€ΠΈΠ΅ΠΌ ΠΏΡ€Π΅ΠΏΠ°Ρ€Π°Ρ‚ΠΎΠ² ΠΈ ΠΏΠΎΠ΄Π³ΠΎΡ‚ΠΎΠ²ΠΊΡƒ ΠΊ исслСдованию 1 (3,1%) ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚. ΠΠ°Ρ€ΡƒΡˆΠ΅Π½ΠΈΠΉ элСктролитного баланса Π½Π΅ ΠΎΡ‚ΠΌΠ΅Ρ‡Π°Π»ΠΎΡΡŒ Π½ΠΈ Ρƒ ΠΎΠ΄Π½ΠΎΠ³ΠΎ ΠΈΠ· ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ². ΠšΠΎΠΌΠΏΠ»Π°Π΅Π½Ρ‚Π½ΠΎΡΡ‚ΡŒ использования Ρ‚Π°Π±Π»Π΅Ρ‚ΠΈΡ€ΠΎΠ²Π°Π½Π½ΠΎΠΉ Ρ„ΠΎΡ€ΠΌΡ‹ NaP (ΠΏΡ€Π΅ΠΏΠ°Ρ€Π°Ρ‚ ΠšΠΎΠ»ΠΎΠΊΠΈΡ‚) Π±Ρ‹Π»Π° высокой, особСнно срСди ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ², ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Π΅ Ρ€Π°Π½Π΅Π΅ использовали Π΄Ρ€ΡƒΠ³ΠΈΠ΅ ΠΏΡ€Π΅ΠΏΠ°Ρ€Π°Ρ‚Ρ‹ для ΠΏΠΎΠ΄Π³ΠΎΡ‚ΠΎΠ²ΠΊΠΈ ΠΊΠΈΡˆΠ΅Ρ‡Π½ΠΈΠΊΠ°. Π’Ρ‹Π²ΠΎΠ΄Ρ‹: использованиС ΠšΠΎΠ»ΠΎΠΊΠΈΡ‚Π° (Ρ‚Π°Π±Π»Π΅Ρ‚ΠΈΡ€ΠΎΠ²Π°Π½Π½ΠΎΠΉ Ρ„ΠΎΡ€ΠΌΡ‹ NaP) ΠΏΡ€ΠΈ ΠΏΠΎΠ΄Π³ΠΎΡ‚ΠΎΠ²ΠΊΠ΅ ΠΊΠΈΡˆΠ΅Ρ‡Π½ΠΈΠΊΠ° ΠΊ колоноскопии ΠΏΡ€ΠΈ сравнСнии с Π΄Ρ€ΡƒΠ³ΠΈΠΌΠΈ ΠΌΠ΅Ρ‚ΠΎΠ΄Π°ΠΌΠΈ очистки ΠΏΠΎΠΊΠ°Π·Π°Π»ΠΎ Ρ…ΠΎΡ€ΠΎΡˆΠΈΠ΅ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹ ΠΊΠ°ΠΊ ΠΏΠΎ качСству ΠΏΠΎΠ΄Π³ΠΎΡ‚ΠΎΠ²ΠΊΠΈ ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ², Ρ‚Π°ΠΊ ΠΈ ΠΏΠΎ прССмствСнности ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² ΠΊ Π΄Π°Π½Π½ΠΎΠΌΡƒ ΠΏΡ€Π΅ΠΏΠ°Ρ€Π°Ρ‚Ρƒ ΠΏΡ€ΠΈ ΠΏΠΎΠ΄Π³ΠΎΡ‚ΠΎΠ²ΠΊΠ΅, Π° Ρ‚Π°ΠΊΠΆΠ΅ ΠΏΠΎ бСзопасности Π΅Π³ΠΎ использования, Ρ‡Ρ‚ΠΎ совпадаСт с Π΄Π°Π½Π½Ρ‹ΠΌΠΈ Π΄Ρ€ΡƒΠ³ΠΈΡ… Ρ€Π°Π½Π΄ΠΎΠΌΠΈΠ·ΠΈΡ€ΠΎΠ²Π°Π½Π½Ρ‹Ρ… исслСдований

    Nanometals: Synthesis and Application in Energetic Systems

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    A survey of metal nanopowders or nanometals (mostly produced by electrical explosion of wires) usage in different energetic systems is carried out with the focus on nanometals combustion efficiency. Improved kinetic characteristics of chemically reacting systems (ignition, burning rate enhancement for propellants, explosives, and thermites) are typical for nanoaluminum, nAl. A weak correlation between nAl properties and the slow oxidation parameters was found as the result of a very wide scatter in powder characteristics. The burning rate enhancement was analyzed for nAl-loaded solid propellants. The most promising energetic systems are nAl-loaded solid fuels (HTPB-based, ice-based, etc.) with chemically inert matrices
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