<?xml version="1.0" encoding="UTF-8"?>
<article xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:mml="http://www.w3.org/1998/Math/MathML" dtd-version="1.4" article-type="research-article">
  <front>
    <journal-meta>
      <journal-id journal-id-type="issn">2411-3336</journal-id>
      <journal-id journal-id-type="eissn">2541-9404</journal-id>
      <journal-title-group>
        <journal-title xml:lang="ru">Записки Горного института</journal-title>
        <journal-title xml:lang="en">Journal of Mining Institute</journal-title>
      </journal-title-group>
      <publisher>
        <publisher-name xml:lang="ru">Санкт-Петербургский горный университет императрицы Екатерины ΙΙ</publisher-name>
        <publisher-name xml:lang="en">Empress Catherine II Saint Petersburg Mining University</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id custom-type="pmi" pub-id-type="custom">pmi-14885</article-id>
      <article-id pub-id-type="uri">https://pmi.spmi.ru/pmi/article/view/14885</article-id>
      <article-categories/>
      <title-group>
        <article-title xml:lang="en">On the motion of a material point in a given force field along a helix on a rough surface</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>О движении материальной точки в заданном силовом поле по винтовой линии на шероховатой поверхности</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Akimov</surname>
            <given-names>M. I.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Акимов</surname>
              <given-names>М. И.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Akimov</surname>
              <given-names>M. I.</given-names>
            </name>
          </name-alternatives>
          <email>pmi@spmi.ru</email>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <aff-alternatives id="aff1">
          <aff>
            <institution xml:lang="ru"> (Россия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en"> (Russia)</institution>
          </aff>
        </aff-alternatives>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Malkin</surname>
            <given-names>N. R.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Малкин</surname>
              <given-names>Н. Р.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Malkin</surname>
              <given-names>N. R.</given-names>
            </name>
          </name-alternatives>
          <email>pmi@spmi.ru</email>
          <xref ref-type="aff" rid="aff2"/>
        </contrib>
        <aff-alternatives id="aff2">
          <aff>
            <institution xml:lang="ru"> (Россия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en"> (Russia)</institution>
          </aff>
        </aff-alternatives>
      </contrib-group>
      <pub-date pub-type="epub" iso-8601-date="1949-03-31">
        <day>31</day>
        <month>03</month>
        <year>1949</year>
      </pub-date>
      <pub-date date-type="collection">
        <year>1949</year>
      </pub-date>
      <volume>15</volume>
      <issue>16</issue>
      <fpage>141</fpage>
      <lpage>145</lpage>
      <history>
        <date date-type="received" iso-8601-date="1949-06-20">
          <day>20</day>
          <month>06</month>
          <year>1949</year>
        </date>
        <date date-type="accepted" iso-8601-date="1949-08-27">
          <day>27</day>
          <month>08</month>
          <year>1949</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="1949-03-31">
          <day>31</day>
          <month>03</month>
          <year>1949</year>
        </date>
      </history>
      <permissions>
        <copyright-statement xml:lang="ru">© 1949 М. И. Акимов, Н. Р. Малкин</copyright-statement>
        <copyright-statement xml:lang="en">© 1949 M. I. Akimov, N. R. Malkin</copyright-statement>
        <copyright-year>1949</copyright-year>
        <copyright-holder xml:lang="ru">М. И. Акимов, Н. Р. Малкин</copyright-holder>
        <copyright-holder xml:lang="en">M. I. Akimov, N. R. Malkin</copyright-holder>
        <license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/4.0" xml:lang="ru">
          <license-p>Эта статья доступна по лицензии Creative Commons Attribution 4.0 International (CC BY 4.0)</license-p>
        </license>
        <license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/4.0" xml:lang="en">
          <license-p>This article is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0)</license-p>
        </license>
      </permissions>
      <self-uri xlink:type="simple" xlink:href="https://pmi.spmi.ru/pmi/article/view/14885">https://pmi.spmi.ru/pmi/article/view/14885</self-uri>
      <abstract xml:lang="ru">
        <p>Вопрос этот для случая однородного поля — поля силы тяжести подробно рассмотрен проф. М. И. Акимовым, который нашел все поверхности, допускающие движение тяжелой точки по винтовым линиям с вертикальной осью при наличии трения, и исследовал условия для этих поверхностей, при которых рассматриваемое движение будет устойчивым.</p>
      </abstract>
      <abstract xml:lang="en">
        <p>This question for the case of a homogeneous field—the gravity field—was discussed in detail by Prof. M.I. Akimov, who found all surfaces that allow the movement of a heavy point along helical lines with a vertical axis in the presence of friction, and investigated the conditions for these surfaces under which the movement in question would be stable.</p>
      </abstract>
    </article-meta>
  </front>
  <body/>
  <back>
    <ref-list>
      <ref id="ref1">
        <label>1</label>
        <mixed-citation xml:lang="ru">-</mixed-citation>
      </ref>
    </ref-list>
  </back>
</article>
