From the range of topics and the depth of physics that were discussed in the previous chapters, it is quite clear that multiphase flow is a challenging subject even at the level of an individual particle. But clearly we need to move forward and begin to consider more complex multiphase-flow physics. Toward this goal, we will progress beyond an isolated particle in an unbounded medium in two different ways. First, in this chapter we will consider the problem of an isolated particle in an ambient flow, but in the presence of a nearby wall.

The aims of EU competition law are contested. The mainstream view that competition law prohibits conduct that harms consumer welfare leads to discussion about the proper economic approach to apply. EU competition law has often been applied in ways that address other public policy considerations, presently focusing on promoting digital markets and a green agenda. The procedures to apply competition law must safeguard the fundamental rights of undertakings and the Court of Justice has helped shape the degree of protection as well as the right to a robust judicial review of Commission decisions. Since 2004, national competition authorities have been tasked with applying EU competition law. Cooperation among national authorities and the Commission is facilitated by the European Competition Network and the ECN+ Directive has conferred on each national competition authorities the same enforcement powers that the Commission enjoys. Each national authority focuses on cases that affect its jurisdiction, the Commission retaining responsibility for cross-border infringements. Private enforcement has been facilitated by the EU legislature and a system of collective redress by which consumers secure compensation is emerging slowly in some jurisdictions.

This chapter addresses the legal dimensions of the European Union’s response to the climate change crisis. It introduces the EU’s climate governance strategy for 2030 and 2050, and reviews the key Regulations, Directives and legislative proposals adopted in its pursuit, including the European Climate Law, the Emissions Trading Directive, the Renewable Energy Directive and the proposed Carbon Border Adjustment Mechanism Regulation. The chapter discusses the position of the EU both as a key contributor to and a subject of international climate change law, and considers the relation between climate change as a governance challenge and the general principles of EU law, with a focus on solidarity, transparency and public participation. The chapter also examines the regulatory and enforcement strategies that characterise EU climate change law. To this end, the EU Emissions Trading System is examined as an example of the EU approach to market-based regulation, and the Governance Regulation demonstrates the EU’s reliance on ‘soft’, proceduralised enforcement in the climate policy sphere. The chapter’s final section illustrates the difficulty of coherent climate change decision-making, as EU authorities must reconcile internal market goals with energy security demands, sustainability concerns and global fairness concerns.

Modern capitalism and globalisation rely on the free movement of capital across borders. Article 63 of the Treaty on the Functioning of the European Union is unusual in applying not just to movement between Member States, but also to capital movements between Member States and third countries. It makes all measures which deter foreign investment unlawful, unless they can be shown to serve a public interest aim and be proportionate. Those principles have been applied to rules on land ownership, taxation and also to golden shares: a mechanism by which governments retain an influence over privatised strategic industries. That influence, because it serves the public interest and not profit, is considered by the Court of Justice likely to deter investors. The implicit view that any constraints on companies which hinder their profit-making are prima facie contrary to Article 63 is controversial. On the other hand, the Treaty also recognises the need for many restrictions on free movement of capital, to protect the cohesion of tax systems, or as part of sanctions or measures against money laundering.

The second edition of this popular textbook has been extensively revised and brought up-to-date with new chapters addressing energy storage and off-grid systems. It provides a quantitative yet accessible overview of the renewable energy technologies that are essential for a net-zero carbon energy system. Covering wind, hydro, solar thermal, photovoltaic, ocean and bioenergy, the text is suitable for engineering undergraduates as well as graduate students from other numerate degrees. The technologies involved, background theory and how projects are developed, constructive and operated are described. Worked examples demonstrate the simple calculation techniques used and engage students by showing them how theory relates to real applications. Tutorial chapters provide background material supporting students from a range of disciplines, and there are over 150 end-of-chapter problems with answers. Online resources, restricted to instructors, provide additional material, including copies of the diagrams, full solutions to the problems and examples of extended exercises.

Diplomacy skills matter, and the widespread perception that anyone with common sense can be trusted with a diplomatic position, even without proper qualifications, is misguided and dangerous. Diplomacy is a serious business. The matters that diplomats deal with are too important to be left to amateurs. There are careers that do not require a new hire to possess any special skills on day one; diplomacy is not such a profession. Diplomats must have most basic skills so that they can hit the ground running. In fact, they are expected to have them before joining a diplomatic service, because most governments do not provide much substantive training to new officers. Although different career tracks–political, economic, consular, management and public diplomacy–require some specialized knowledge and abilities, most diplomatic skill sets are universal. This chapter covers the key aspects of diplomatic tradecraft, on which the rest of the book will elaborate and expound.

In this chapter our attention will primarily be restricted to the dispersed phase. Clearly the continuous phase is also important, but in this chapter we will discuss the state or evolution of the continuous phase only as needed in the context of characterizing the state of the dispersed phase. Consider the case of a turbulent multiphase flow with a random distribution of monosized spherical particles (or droplets or bubbles) within it. Imagine taking pictures of the particle distribution in an experiment (i.e., in one realization) without recording the details of the flow surrounding the particles.

Health and science diplomacy is the activity of deploying international cooperation in the service of science and public health, and using global health and science efforts to achieve foreign-policy goals. As a bridge between the scientific community and decision-makers in government, a science or health diplomat must understand the work of both and, ideally, how they think. Scientists see a pattern or anomaly in nature and try to gather data and evidence to explain it. They publish their findings in peer-reviewed scientific journals. But those findings also have to be packaged and communicated to nonscientists, because the data rarely speaks for itself. This is where science diplomats come in. They need to understand the evidence and incorporate it into persuasive arguments that can influence policymakers to elevate the potential threat as a priority and take action.

In Chapter 7, we open with a thorough discussion of “the theory of the firm,” followed by a conventional treatment of productivity and an introduction to costs. This chapter also has a lengthy discussion of expected applications (sunk costs, agency problems, insource/outsource), and a number of unusual but important applications (dedicated investments, franchising, tenure, and employee management).

In Chapter 4, we bring more sophistication to our demand curve analysis with a lengthy description of elasticity, a discussion of lagged-demand and network goods, and a dialogue on concerns about demand theory.

Photosynthesis takes carbon dioxide from the atmosphere and stores the carbon in the biomass of plants and trees. This carbon is released when the biomass is converted to energy but the overall cycle of growing biomass through photosynthesis and converting it to useful energy can be considered to produce limited net emissions of greenhouse gases. The processes by which biomass is converted into energy are described, including the thermochemical processes of combustion and gasification of solid biomass, the biochemical processes of anaerobic digestion, and alcoholic fermentation and the extraction of oil from plants. Combustion of biomass to generate electricity is described and the gasification of biomass is discussed. Anaerobic digestion to produce biogas and the alcoholic fermentation of crops to produce biofuel are described. The production of biodiesel by the extraction and purification of vegetable oil from plants is also described. The chapter is supported by 5 examples, 16 questions with answers and full solutions in the accompanying online material. Further reading and online resources are identified.