476 research outputs found

    Multiple point compression on curves

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    Multiple point compression is an important feature to improve the implementation of elliptic curve cryptography. This can be extended to other curves, in particular hyperelliptic curves, with divisors represented in Mumford form

    STRUCTURE FORMATION PROCESS OF HYDRATED PORTLAND CEMENT COMPOSITIONS: NANOSCALE LEVEL CONTROL

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    Durability of cement-like construction materials, as well as durability of cement stone, depends on their humidity resistance, frost resistance, corrosion resistance. All of these properties depend not only on the composition of the original clinker, but also on structural organization at micro-and nanoscale level of hydrated portland cement compositions. In this research the authors used the method of small-angle neutron scattering to define structural parameters of hydrated portland cement compositions on nanoscale level, distribution of calcium hydrate silicate nanoparticles in size, medium nanoparticles radius, fractal dimension. It is shown, that introduction of modifying nanoadditives into portland cement compositions affects structural parameters of a cement stone. The following nanoadditives were used: of artificial (alpha aluminium oxide, gamma aluminum oxide) and of anthropogenic (carbonate and alumo-alkaline sludges) origin, as well as integrated nanoadditives containing surfactants. The change in structural parameters of portland cement compositions with nanoadditives in the process of hydration is investigated. It is shown that use of nanoadditives allows to control the process of forming the structure of hydrated portland cement composition on the nanoscale level, directly affect the values of structural parameters and, as a result, modify properties of cement stone

    Electronic synopsis for the teacher and for the student

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    ΠŸΡ€ΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ соврСмСнных ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΎΠ½Π½Ρ‹Ρ… Ρ‚Π΅Ρ…Π½ΠΎΠ»ΠΎΠ³ΠΈΠΉ Π² процСссС обучСния позволяСт Π·Π½Π°Ρ‡ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎ ΠΈΠ½Ρ‚Π΅Π½ΡΠΈΡ„ΠΈΡ†ΠΈΡ€ΠΎΠ²Π°Ρ‚ΡŒ ΡƒΡ‡Π΅Π±Π½Ρ‹ΠΉ процСсс, способствуСт ΠΏΠΎΠ²Ρ‹ΡˆΠ΅Π½ΠΈΡŽ творчСской активности учащихся, Π° Ρ‚Π°ΠΊΠΆΠ΅ обСспСчиваСт Π½Π΅ΠΎΠ±Ρ…ΠΎΠ΄ΠΈΠΌΡ‹Π΅ условия для ΠΈΡ… эффСктивной ΡΠ°ΠΌΠΎΡΡ‚ΠΎΡΡ‚Π΅Π»ΡŒΠ½ΠΎΠΉ Ρ€Π°Π±ΠΎΡ‚Ρ‹. ΠšΠΎΠ½ΠΊΡ€Π΅Ρ‚Π½Ρ‹Π΅ ΠΏΡƒΡ‚ΠΈ Π°ΠΊΡ‚ΠΈΠ²ΠΈΠ·Π°Ρ†ΠΈΠΈ ΡƒΡ‡Π΅Π±Π½ΠΎΠ³ΠΎ процСсса Π½ΡƒΠΆΠ΄Π°ΡŽΡ‚ΡΡ Π² Π³Π»ΡƒΠ±ΠΎΠΊΠΎΠΉ ΠΏΡ€ΠΎΡ€Π°Π±ΠΎΡ‚ΠΊΠ΅; дидактичСский ΠΏΠΎΡ‚Π΅Π½Ρ†ΠΈΠ°Π» этих Ρ‚Π΅Ρ…Π½ΠΎΠ»ΠΎΠ³ΠΈΠΉ Π΅Ρ‰Π΅ Π½Π΅ раскрыт Π² Π΄ΠΎΠ»ΠΆΠ½ΠΎΠΉ ΠΌΠ΅Ρ€Π΅. Π­Π»Π΅ΠΊΡ‚Ρ€ΠΎΠ½Π½Ρ‹ΠΉ конспСкт Π»Π΅ΠΊΡ†ΠΈΠΈ для прСподаватСля совмСщаСт тСхничСскиС возмоТности ΠΊΠΎΠΌΠΏΡŒΡŽΡ‚Π΅Ρ€Π½ΠΎΠΉ ΠΈ Π²ΠΈΠ΄Π΅ΠΎΡ‚Π΅Ρ…Π½ΠΈΠΊΠΈ Π² прСдставлСнии ΡƒΡ‡Π΅Π±Π½ΠΎΠ³ΠΎ ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»Π° с ΠΆΠΈΠ²Ρ‹ΠΌ ΠΎΠ±Ρ‰Π΅Π½ΠΈΠ΅ΠΌ Π»Π΅ΠΊΡ‚ΠΎΡ€Π° с Π°ΡƒΠ΄ΠΈΡ‚ΠΎΡ€ΠΈΠ΅ΠΉ. ЀактичСски - это Π½ΠΎΠ²ΠΎΠ΅ основноС срСдство управлСния ΠΎΠ±Ρ€Π°Π·ΠΎΠ²Π°Ρ‚Π΅Π»ΡŒΠ½Ρ‹ΠΌ процСссом Π² Π°ΡƒΠ΄ΠΈΡ‚ΠΎΡ€ΠΈΠΈ с достаточно большим числом учащихся. Π­Π»Π΅ΠΊΡ‚Ρ€ΠΎΠ½Π½Ρ‹ΠΉ конспСкт для студСнта Π΄ΠΎΠ»ΠΆΠ΅Π½ ΠΏΡ€Π΅Π΄ΡΡ‚Π°Π²Π»ΡΡ‚ΡŒ собой Π΄ΠΎΠΏΠΎΠ»Π½ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΠ΅ ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΎΠ½Π½ΠΎΠ΅ обСспСчСниС ΠΊ лСкциям Π½ΠΎ ΡƒΡ‡Π΅Π±Π½ΠΎΠΌΡƒ курсу. Π’ Π½Π΅ΠΌ ΠΌΠΎΠ³ΡƒΡ‚ Π±Ρ‹Ρ‚ΡŒ Ρ€Π°Π·ΠΌΠ΅Ρ‰Π΅Π½Ρ‹ схСмы, Π³Ρ€Π°Ρ„ΠΈΠΊΠΈ, ΠΈΠ½Ρ‚Π΅Ρ€Π°ΠΊΡ‚ΠΈΠ²Π½Ρ‹Π΅ Π°Π½ΠΈΠΌΠ°Ρ†ΠΈΠΈ, справочныС ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»Ρ‹, Π½Π΅ΠΎΠ±Ρ…ΠΎΠ΄ΠΈΠΌΡ‹Π΅ ΠΏΡ€ΠΈ ΠΈΠ·ΡƒΡ‡Π΅Π½ΠΈΠΈ дисциплины. НаличиС этих ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»ΠΎΠ² Π² элСктронном конспСктС позволяСт ΡΠΊΠΎΠ½ΠΎΠΌΠΈΡ‚ΡŒ Π»Π΅ΠΊΡ†ΠΈΠΎΠ½Π½ΠΎΠ΅ врСмя, Ρ‚.ΠΊ. студСнты знакомятся со всСм этим ΠΏΠΎ заданию прСподаватСля Π΄ΠΎ занятия Π² Π°ΡƒΠ΄ΠΈΡ‚ΠΎΡ€ΠΈΠΈ, ΠΈ большС внимания ΡƒΠ΄Π΅Π»ΡΡ‚ΡŒ Π½Π°ΠΈΠ±ΠΎΠ»Π΅Π΅ слоТным вопросам. Π’Π°ΠΊΠΈΠΌ ΠΎΠ±Ρ€Π°Π·ΠΎΠΌ, элСктронный конспСкт ΠΏΡ€Π΅Π΄Π½Π°Π·Π½Π°Ρ‡Π΅Π½ для ΠΎΡ€Π³Π°Π½ΠΈΠ·Π°Ρ†ΠΈΠΈ ΡΠ°ΠΌΠΎΡΡ‚ΠΎΡΡ‚Π΅Π»ΡŒΠ½ΠΎΠΉ Ρ€Π°Π±ΠΎΡ‚Ρ‹ студСнтов ΠΏΡ€ΠΈ ΠΈΠ·ΡƒΡ‡Π΅Π½ΠΈΠΈ ΠΈΠΌΠΈ тСорСтичСских ΠΏΠΎΠ»ΠΎΠΆΠ΅Π½ΠΈΠΉ ΠΈΠ·ΡƒΡ‡Π°Π΅ΠΌΠΎΠΉ дисциплины. Π‘ ΡƒΡ‡Π΅Ρ‚ΠΎΠΌ Ρ‚Π΅Π½Π΄Π΅Π½Ρ†ΠΈΠΈ ΠΊ ΡΠΎΠΊΡ€Π°Ρ‰Π΅Π½ΠΈΡŽ объСма часов Π°ΡƒΠ΄ΠΈΡ‚ΠΎΡ€Π½Ρ‹Ρ… занятий, Ρ€Π°Π·Ρ€Π°Π±ΠΎΡ‚ΠΊΠ° ΠΈ Π²Π½Π΅Π΄Ρ€Π΅Π½ΠΈΠ΅ Π² ΡƒΡ‡Π΅Π±Π½Ρ‹ΠΉ процСсс элСктронных конспСктов Π»Π΅ΠΊΡ†ΠΈΠΉ для студСнтов ΠΏΠ°Ρ€Π°Π»Π»Π΅Π»ΡŒΠ½ΠΎ с ΡΠΎΠ²Π΅Ρ€ΡˆΠ΅Π½ΡΡ‚Π²ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ всСго элСктронного УМК прСдставляСтся своСврСмСнной ΠΈ вСсьма Π°ΠΊΡ‚ΡƒΠ°Π»ΡŒΠ½ΠΎΠΉ.Application of modern information technologies during training allows us to intensify considerably educational process, promotes increase of creative activity of students, and also provides necessary conditions for their effective independent work. Concrete ways of activization of educational process require deep study; the didactic potential of these technologies still is not described in a due measure. The electronic synopsis of lecture for the teacher combines technical opportunities of computer and video equipment in representation of a teaching material with live dialogue of the lecturer with an audience. Actually it is a new main educational process control tool for an audience with enough greater number of students. The electronic synopsis for the student should represent an additional supply with information to training course lectures. It may consist of schemes, schedules, interactive animations, and other materials required for discipline study. Presence of these materials in the electronic abstract allows us to save lecture time and pay more attention to complicated questions since students get acquainted with all it under orders of the teacher before the lesson,. Thus, the electronic abstract is intended for the organization of independent work of students during the study of theoretical positions of studied discipline. In view of the tendency to reduction of lessons volume, development and introduction of electronic synopsizes for students together with further development of all electronic SMC appears to be duly and very actual

    Principles of using NI LabVIEW system in the course of practical physics at technical university

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    Π’ ΡΡ‚Π°Ρ‚ΡŒΠ΅ ΠΎΠ±ΡΡƒΠΆΠ΄Π°ΡŽΡ‚ΡΡ ΠΏΡ€ΠΈΠ½Ρ†ΠΈΠΏΡ‹ использования систСмы NI LabVIEW Π² физичСском ΠΏΡ€Π°ΠΊΡ‚ΠΈΠΊΡƒΠΌΠ΅ тСхничСского унивСрситСта.Principles of using NI LabVIEW system in the course of practical physics are discussed

    Physics electron benefit for student or abiturient

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    ΠžΠ±ΡΡƒΠΆΠ΄Π°ΡŽΡ‚ΡΡ структура ΠΈ интСрфСйс элСктронного пособия для ΡΠ°ΠΌΠΎΡΡ‚ΠΎΡΡ‚Π΅Π»ΡŒΠ½ΠΎΠΉ Ρ€Π°Π±ΠΎΡ‚Ρ‹ студСнта (ΠΈΠ»ΠΈ Π°Π±ΠΈ Ρ‚ΡƒΡ€ΠΈΠ΅Π½Ρ‚Π°) ΠΏΡ€ΠΈ Ρ€Π°Π±ΠΎΡ‚Π΅ Π½Π°Π΄ Ρ€Π°Π·Π΄Π΅Π»ΠΎΠΌ курса Ρ„ΠΈΠ·ΠΈΠΊΠΈ Β«ΠœΠ΅Ρ…Π°Π½ΠΈΠΊΠ°Β».An outline and interface of electron benefit β€œMechanics” is discussed

    Fraunhofer diffraction simulator for single slit

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    Π Π°Π·Ρ€Π°Π±ΠΎΡ‚Π°Π½Π° ΠΊΠΎΠΌΠΏΡŒΡŽΡ‚Π΅Ρ€Π½Π°Ρ модСль для Π»Π΅ΠΊΡ†ΠΈΠΎΠ½Π½ΠΎΠΉ дСмонстрации Π΄ΠΈΡ„Ρ€Π°ΠΊΡ†ΠΈΠΈ Π€Ρ€Π°ΡƒΠ½Π³ΠΎΡ„Π΅Ρ€Π° Π½Π° Ρ‰Π΅Π»ΠΈ Π² Π½Π΅ΠΏΡ€ΠΎΠ·Ρ€Π°Ρ‡Π½ΠΎΠΌ экранС. МодСль прСдусматриваСт Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡ‚ΡŒ измСнСния Π΄Π»ΠΈΠ½Ρ‹ Π²ΠΎΠ»Π½Ρ‹ ΠΈ ΡˆΠΈΡ€ΠΈΠ½Ρ‹ Ρ‰Π΅Π»ΠΈ с ΠΎΡ‚ΠΎΠ±Ρ€Π°ΠΆΠ΅Π½ΠΈΠ΅ΠΌ Π½Π° Π°ΡƒΠ΄ΠΈΡ‚ΠΎΡ€Π½ΠΎΠΌ экранС Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚ΠΎΠ² Π΄ΠΈΡ„Ρ€Π°ΠΊΡ†ΠΈΠΈ для Π½Π΅ΡΠΊΠΎΠ»ΡŒΠΊΠΈΡ… Π½Π°Π±ΠΎΡ€ΠΎΠ² исходных ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€ΠΎΠ².Fraunhofer diffraction simulator for single slit is elaborated for physics lecture. The simulation provides the choice of the wave iength and the siii width. Resulting patterns are demonstrated onto auditorium screen for several chosen parameters

    Memory Effect and Triplet Pairing Generation in the Superconducting Exchange Biased Co/CoOx/Cu41Ni59/Nb/Cu41Ni59 Layered Heterostructure

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    We fabricated a nanolayered hybrid superconductor-ferromagnet spin-valve structure, the resistive state of which depends on the preceding magnetic field polarity. The effect is based on a strong exchange bias (about -2 kOe) on a diluted ferromagnetic copper-nickel alloy and generation of a long range odd in frequency triplet pairing component. The difference of high and low resistance states at zero magnetic field is 90% of the normal state resistance for a transport current of 250 {\mu}A and still around 42% for 10 {\mu}A. Both logic states of the structure do not require biasing fields or currents in the idle mode.Comment: 9 pages, 4 figures, Accepted to Applied Physics Letter

    Multimedia information resource for a base of physics lesson

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    Π Π°Π·Ρ€Π°Π±ΠΎΡ‚Π°Π½ΠΎ ΠΊΠΎΠΌΠΏΡŒΡŽΡ‚Π΅Ρ€Π½ΠΎΠ΅ пособиС, Π½Π° основС ΠΊΠΎΡ‚ΠΎΡ€ΠΎΠ³ΠΎ прСдлагаСтся ΠΏΡ€ΠΎΠ²ΠΎΠ΄ΠΈΡ‚ΡŒ ΡƒΡ€ΠΎΠΊ Ρ„ΠΈΠ·ΠΈΠΊΠΈ с использованиСм ΠΏΡ€ΠΎΠ΅ΠΊΡ‚ΠΎΡ€Π° с Π°ΡƒΠ΄ΠΈΡ‚ΠΎΡ€Π½Ρ‹ΠΌ экраном ΠΈΠ»ΠΈ элСктронной доски. ПособиС содСрТит Π°Π½ΠΈΠΌΠΈΡ€ΠΎΠ²Π°Π½Π½ΡƒΡŽ Π³Ρ€Π°Ρ„ΠΈΠΊΡƒ, Ρ„ΠΈΠ·ΠΈΡ‡Π΅ΡΠΊΡƒΡŽ ΠΈ ΠΈΠΌΠΈΡ‚Π°Ρ†ΠΈΠΎΠ½Π½ΡƒΡŽ модСль ΠΈΠ·ΡƒΡ‡Π°Π΅ΠΌΠΎΠ³ΠΎ явлСния, Π° Ρ‚Π°ΠΊΠΆΠ΅ тСкстовыС Ρ€Π΅Π·ΡŽΠΌΠ΅, относящиСся ΠΊ ΠΈΠ·ΡƒΡ‡Π°Π΅ΠΌΠΎΠΉ Ρ‚Π΅ΠΌΠ΅.The multimedia tutorial for auditoria screen usage at lecture-hall is proposed as a base of physics lesson. It contains animations of different kinds, physical and simulative emulation and brief summaries for a topic under the study

    Relief and geology of the north polar region of the planet Venus

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    Description of topographic features is given for the North polar region of the planet Venus. Principal geomorphic types of terrain are characterized as well as their geologic relations. Relative ages of geologic units in Venus North polar region are discussed
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