Icptt 2014

International Young Physicists' Tournament (IYPT), is one of the most prestigious international physics contests among high school students. This book is based on the solutions of 2014 IYPT problems. The authors are undergraduate students who participated in the CUPT (Chinese Undergraduate Physics Tournament). It is intended as a college level solution to the challenging open-ended problems. It provides original, quantitative solutions in fulfilling seemingly impossible tasks. This book is not limited to the tasks required by the problems and it is not confined to the models and methods in present literatures. Many of the articles include modification and extension to existing models in references, or derivation and computation based on fundamental physics. This book provides quantitative solutions to practical problems in everyday life. This is a good reference book for undergraduates, advanced high-school students, physics educators and curious public interested in the intriguing phenomena in daily life. List of supplementary materials: More solutions not included in the book: Solution to problem 4. Ball sound (2 MB) Solution to problem 13. Rotating saddle (2 MB) Solution to problem 14. Rubber motor (3 MB) Others： Problem 2: Hologram Video1, IYPT display (16 MB) Video2, parallax of real objects (1 MB) Video3, parallax of 'hologram' image (14 MB) Problem 3: Twisted Rope Video1, twist process of a silicon gel rope (twisted 8 rounds) (16 MB) Video2, twist process of a multi-strand rope (twisted 20 rounds) (17 MB) Problem 6: Bubble crystal Video 1, the attraction of two bubbles (4 MB) Video 2, bubble crystal formation (1 MB) Video 3, vacancy and replacement (1 MB) Problem 8: Freezing droplets Video1, freezing of water droplets (10 MB) Video2, freezing of a paraffin droplet (9 MB) Problem 10: Coefficient of diffusion Video1, Diffusion of particles (3 MB) Source Code, The full set of program we used in experiment (2 MB) Problem 12: Cold balloon Video1, sphere.avi: Change of strain energy density distribution of a spherical balloon. The lower part has a larger deformation so that the temperature increase is larger. The color scale is the same as in Fig. 13. Red indicates larger energy density, blue the smaller one. (17 MB) Video2, realballoon.avi: Change of strain energy density distribution of a real balloon. The color scale is the same as in Fig. 15. Red indicates larger energy density and larger temperature increase, blue for smaller change. (17 MB) Problem 15: Oil Stars Video1, six-crests.mov: stable faraday waves of six crests (2 MB) Video2, one-and-two crests.gif: faraday waves of one and two crests (1 MB) Video3, three-crests.gif: faraday waves of three crests (1 MB) Video4, four-crests.gif: faraday waves of four crests (1 MB) Request Inspection Copy

Tunnels and Underground Cities: Engineering and Innovation meet Archaeology, Architecture and Art. Volume 4: Ground Improvement in Underground Constructions contains the contributions presented in the eponymous Technical Session during the World Tunnel Congress 2019 (Naples, Italy, 3-9 May 2019). The use of underground space is continuing to grow, due to global urbanization, public demand for efficient transportation, and energy saving, production and distribution. The growing need for space at ground level, along with its continuous value increase and the challenges of energy saving and achieving sustainable development objectives, demand greater and better use of the underground space to ensure that it supports sustainable, resilient and more liveable cities. The contributions cover a wide range of topics, from permeation grouting and consolidation works, safety operations, artificial ground freezing to frost heave control. The book is a valuable reference text for tunnelling specialists, owners, engineers, archaeologists, architects, artists and others involved in underground planning, design and building around the world, and for academics who are interested in underground constructions and geotechnics.

Innovation in public procurement is essential for sustainable and inclusive growth in an increasingly globalized economy. To achieve that potential, both the promises and the perils of innovation must be investigated, including the risks and opportunities of joint procurement across borders in the European Union and the United States. This in-depth research investigates innovation in public procurement from three different perspectives. First, leading academics and practitioners assess the purchase of innovation, with a particular focus on urban public contracting in smart cities involving meta-infrastructures, public-private partnership arrangements and smart contracts. A second line of inquiry looks for ways to encourage innovative suppliers. Here, the collected authors draw on emerging lessons from the US and Europe, to explore both the costs and the benefits of spurring innovation through procurement. A third perspective looks to various innovations in the procurement process itself, with a focus on the effects of joint and cross-border procurement in the EU and US landscapes. The chapters review new technologies and platforms, the increasingly automated means of selecting suppliers, and the related efficiencies that “big data” can bring to public procurement. Expanding on research in the editors’ prior volume, Integrity and Efficiency in Sustainable Public Contracts: Balancing Corruption Concerns in Public Procurement Internationally (Bruylant 2014), this volume builds on a series of academic conferences and exchanges to address these issues from sophisticated academic, institutional and practical perspectives, and to point the way to future research on the contractual models that are emerging from new procurement technologies.

The Special Issue on Advances in Modeling and Management of Urban Water Networks (UWNs) explores four important topics of research in the context of UWNs: asset management, modeling of demand and hydraulics, energy recovery, and pipe burst identification and leakage reduction. In the first topic, the multi-objective optimization of interventions on the network is presented to find trade-off solutions between costs and efficiency. In the second topic, methodologies are presented to simulate and predict demand and to simulate network behavior in emergency scenarios. In the third topic, a methodology is presented for the multi-objective optimization of pump-as-turbine (PAT) installation sites in transmission mains. In the fourth topic, methodologies for pipe burst identification and leakage reduction are presented. As for the urban drainage systems (UDSs), the two explored topics are asset management, with a system upgrade to reduce flooding, and modeling of flow and water quality, with analyses on the transition from surface to pressurized flow, impact of water use reduction on the operation of UDSs, and sediment transport in pressurized pipes. The Special Issue also includes one paper dealing with the hydraulic modeling of an urban river with a complex cross-section.

ICICS-2020 is the third conference initiated by the School of Electronics and Electrical Engineering at Lovely Professional University that explored recent innovations of researchers working for the development of smart and green technologies in the fields of Energy, Electronics, Communications, Computers, and Control. ICICS provides innovators to identify new opportunities for the social and economic benefits of society. This conference bridges the gap between academics and R&D institutions, social visionaries, and experts from all strata of society to present their ongoing research activities and foster research relations between them. It provides opportunities for the exchange of new ideas, applications, and experiences in the field of smart technologies and finding global partners for future collaboration. The ICICS-2020 was conducted in two broad categories, Intelligent Circuits & Intelligent Systems and Emerging Technologies in Electrical Engineering.

FLEXIBLE PIPELINES AND POWER CABLES Pipelines are an important part of the world’s energy infrastructure, and, without them, oil and gas, the most commonly used sources for energy today, would not be available to much of the world’s countries. New theories and designs are constantly being researched and developed by scientists and engineers, to continue improving this technology and making it safer and more economical. The technology, processes, materials, and theories surrounding pipeline construction, application, and troubleshooting are constantly changing, and this groundbreaking series, “Advances in Pipes and Pipelines,” has been created to meet the needs of engineers and scientists to keep them up to date and informed of all of these advances. This latest volume in the series focuses on flexible pipelines and power cables, offering the engineer the most thorough coverage of the state of the art available. The authors of this work have written numerous books and papers on these subjects and are some of the most influential authors on flexible pipes in the world, contributing much of the literature on this subject to the industry. This new volume is a presentation of some of the most cutting-edge technological advances in technical publishing. This is the most comprehensive and in-depth series on pipelines, covering not just the various materials and their aspects that make them different, but every process that goes into their installation, operation, and design. This is the future of pipelines, and it is an important breakthrough. A must-have for the veteran engineer and student alike, this volume is an important new advancement in the energy industry, a strong link in the chain of the world’s energy production.

Many oil production processes present a significant challenge to the oil and gas field processing facilities and equipment design. The optimization of the sequential operations of handling the oil–gas mixture can be a major factor in increasing oil and gas production rates and reducing operating costs. Petroleum and Gas Field Processing provides an all-inclusive guide to surface petroleum operations and solves these and other problems encountered in the field processing of oil and gas. Fully revised and updated to reflect major changes over the past decade or so, this second edition builds on the success attained in the first edition. It delivers an expanded and updated treatment that covers the principles and procedures related to the processing of reservoir fluids for the separation, handling, treatment, and production of quality petroleum oil and gas products. With five new chapters, this second edition covers additional subjects, in particular natural gas, economics and profitability, oil field chemicals, and piping and pumps. The book also contains worked-out examples and case studies from a variety of oil field operations.