Marina О. Leibman
Alexander I. Kizyakov
Andrei V. Plekhanov
Irina D. Streletskaya
Published: Jan. 1, 2014
This paper is based on field data obtained during short visits to a newly formed permafrost feature in a form of relatively narrow, deep crater. Excluding impossible and improbable versions of the crater's development, the authors conclude that it originated from warmer ground temperatures and an increase in unfrozen water content, leading to an increase in pressure from gas emissions from permafrost and ground ice. This conclusion is also supported by known processes in the palaeo-geography of Yamal lakes and recent studies of gas-hydrate behavior and subsea processes in gas-bearing provinces.
Ping Lu
Robert J K Wood
Published: Jan. 1, 2020
Surface textures have been of great interest within the tribology community with nearly 1500 papers published on this topic in the past two decades. With the pursuit of low emissions and environmental sustainability, the application of surface texturing to mechanical systems to lower friction and control wear is attracting increasing attention. There is no doubt that certain textured surfaces can have a beneficial effect on tribological performance but it is widely agreed that the optimization of textures should be carried out based on specific requirements of applications. The purpose of this review article is to summarize the current state of …
Hanna К. Lappalainen
Nina Zaitseva
Olga Glezer
Mikhail Arshinov
Antti Lauri
Taina Ruuskanen
Vladimir B. Lapshin
Tuukka Petäjä
Joni Kujansuu
Veli-Matti Kerminen
Anatoly Shvidenko
Jaana Bäck
Timo Vesala
Gerrit de Leeuw
Dominick V. Spracklen
Steve R. Arnold
Sirkku Juhola
Heikki Lihavainen
Yrjö Viisanen
Natalia Chubarova
Sergey Chalov
Nikolay Filatov
Andrey Skorokhod
Nikolay Elansky
Egor Dyukarev
Igor Esau
Pertti Hari
Vladimir Kotlyakov
Nikolay Kasimov
Valery Bondur
Gennady Matvienko
Alexander Baklanov
Evgeny Mareev
Yuliya Troitskaya
Aijun Ding
Huadong Guo
Sergej Zilitinkevich
Markku Kulmala
Published: Jan. 1, 2014
The Pan-Eurasian Experiment (PEEX) is a new multidisciplinary, global change research initiative focusing on understanding biosphere-ocean- cryosphere-climate interactions and feedbacks in Arctic and boreal regions in the Northern Eurasian geographical domain. PEEX operates in an integrative way and it aims at solving the major scientific and society relevant guestions in many scales using tools from natural and social sciences and economics. The research agenda identifies the most urgent large scale research guestions and topics of the landatmosphere-aquatic-anthropogenic systems and interactions and feedbacks between the systems for the next decades. Furthermore PEEX actively develops and designs a coordinated and coherent ground …
Meryana
Erna Setiany
Published: Jan. 1, 2021
The purpose of this research is to test investments, free cash flow, earnings management, and interest coverage ratio are affecting the risk of financial distress in healthy enterprises.. Healthy companies can be seen from how large the value of working capital, retained earnings, income before tax, market value and sales implemented in the measurement of the financial difficulties model with the Altman Z-score method. Collection of data by purposive sampling and number of samples as many as 33 companies in the category of healthy companies. The results show that free cash flows and interest coverage ratio significant effect on the …
Nova Tri Anggraini
Published: Jan. 1, 2022
This research aims to horizontally and vertically determine the financial performance of PT Unilever, Tbk, especially by observing the development of assets and financial statements through the calculation of financial ratios. Based on the research results, it can be observed that based on the analysis of the ratio of Liquidity, Profitability and Leverage tend to fluctuate. The liquidity ratio has increased, Profitability ratio has increased in GPM and NPM but decreased in Cash Ratio, ROA, and ROE. The Leverage Ratio has decreased; thus, the financial performance of PT Unilever, Tbk has not been fully optimal. Based on the horizontal analysis, …
Ade Onny Siagian
Published: Jan. 1, 2020
The purpose of this study was to determine the Role of Inventory Accounting Systems in Improving the Inventory Internal Control Structure at Putri Mayasari Cilandak. The research method used in this study is a qualitative research method with a case study approach and the data collected consists of primary and secondary data. Then Primary Data is collected through interviews, observations, and documentation, while Secondary Data is collected through library research to determine the role of the inventory accounting system in improving the structure of internal inventory control. The results of the study found that the role of the inventory accounting …
S Lou
Z Zhu
W Zeng
C Majewski
P J Scott
X Jiang
Published: Sept. 1, 2021
Surface topography of additively manufactured components often contains 3D features, e.g. particles, open surface pores. X-ray computed topography can capture these features, allowing measurement data to be used for 3D surface texture characterisation. On the basis of the newly developed 3D surface texture parameters, this paper investigates material ratio curves of the surfaces produced by additive manufacturing processes, i.e. selective laser melting and high speed sintering. The material ratio curves of these surfaces vary in their shapes, depending on the specific process and associated process parameters, as well as surface orientations. Re-entrant topography features can result in recess shapes on …
Mark A Purnell
Laurent P G Darras
Published: Jan. 1, 2015
An understanding of how extinct animals functioned underpins our understanding of past evolutionary events, including adaptive radiations, and the role of functional innovation and adaptation as drivers of both micro- and macroevolution. Yet analysis of function in extinct animals is fraught with difficulty. Hypotheses that interpret molariform teeth in fishes as evidence of durophagous (shell-crushing) diets provide a good example of the particular problems inherent in the methods of functional morphology. This is because the assumed close coupling of form and function upon which the approach is based is weakened by, among other things, behavioural flexibility and the absence of …
Евгений Моисеевич Бухвальд
Николай Владимирович Ворошилов
Published: Jan. 1, 2018
Целью данной статьи выступают оценка тенденций и выявление ключевых проблем социально-экономического развития муниципальных образований и института местного самоуправления, определение путей решения наиболее острых из них. Тенденции развития муниципалитетов рассматриваются во взаимосвязи с процессами реформирования местного самоуправления; при этом анализ осуществляется не только на основе данных статистики, но и с использованием результатов мониторинга местного самоуправления, проводимого в Вологодской области с 2007 г. в форме анкетного опроса глав муниципалитетов. Это отличает выполненную работу от аналогичных работ других ученых и формирует ее научную новизну. Для достижения поставленной цели использованы такие научные методы, как экономический, статистический и компаративный анализ, методы обобщения и экспертного опроса, …
Светлана Николаевна Растворцева
Published: Jan. 1, 2018
Статья посвящена вопросам размещения производительных сил в регионах России, на которое оказывают влияние не только факторы «первой природы» — наличие полезных ископаемых, плодородных земель, выгодное географическое положение, но и факторы «второй природы», в частности вероятность возникновения агломерационных эффектов от скученности и возможность экономии на масштабе. Анализ географической концентрации и региональной специализации отражает общие тенденции размещения промышленного производства, инвестиций и трудовых ресурсов, дает необходимую информационную основу для проведения сбалансированной экономической политики.Целью исследования является теоретическое обоснование и анализ размещения производительных сил в части оценки концентрации и специализации регионов России в динамике. В работе раскрыты терминологические аспекты понятий концентрации, агломерации, специализации, экономики локализации …