THE 5-STEP PLAN -- A PERFECT PLAN for the PERFECT SCORE STEP 1 Set up your study plan with three model schedules STEP 2 Determine your readiness with an AP-style diagnostic exam STEP 3 Develop the strategies that will give you the edge on test day STEP 4 Review the terms and concepts you need to score high STEP 5 Build your confidence with full-length practice exams MP3 CD-ROM with listening comprehension and speaking practice
In this hybrid year, let us supplement your AP classroom experience with this easy-to-follow study guide. The immensely popular 5 Steps to a 5 AP Chinese guide has been updated for the 2020-21 school year and now contains: 2 full-length practice exams Up-to-Date Resources for COVID 19 Exam Disruption Comprehensive overview of the AP Chinese Language and Culture exam format Realistic exercises, including print and audio texts Chinese characters presented in both traditional and simplified characters A complete audio program on MP3 disk to help you develop solid listening-comprehension skills and gain valuable interactive speaking practice
THE 5-STEP PLAN -- A PERFECT PLAN for the PERFECT SCORE STEP 1 Set up your study plan with three model schedules STEP 2 Determine your readiness with an AP-style diagnostic exam STEP 3 Develop the strategies that will give you the edge on test day STEP 4 Review the terms and concepts you need to score high STEP 5 Build your confidence with full-length practice exams MP3 CD-ROM with listening comprehension and speaking practice
Rechargeable batteries are one of the crucial ways we are going to solve the sustainable energy crisis. Lithium-ion batteries have been commercialised and are heavily relied upon, however, the scarcity of lithium resources increases the production cost and hinders further application. Additionally, the toxic and flammable electrolyte brings many potential safety hazards including environmental pollution. Looking for low-cost, safe, and environmentally friendly alternatives to LIBs has become a valuable research direction. The modification of batteries is focused on the anode, the cathode and electrolyte. Globally, researchers have moved onto new rechargeable batteries based on multivalent metal ions which have been extensively studied, including K+, Ca2+, Mg2+ and Al3+. However, the electrolyte is a very important component of a battery as its physical and chemical properties directly affect the electrochemical performance and energy storage mechanism. Finding and selecting an appropriate electrolyte system is a crucial factor that must be taken into account to make these post-lithium-ion batteries commercially viable. Until now, it has been challenging to develop a suitable electrolyte with a wide electrochemical stability window and stable anode interface. This book covers all the major ion-battery groups and their electrolytes, examining their performance and suitability in different solvents: aqueous, non-aqueous, solid gel and polymer. It is suitable for all levels of students and researchers who want to understand the fundamentals and future challenges of developing electrolytes.
Liquid Electrolyte Chemistry for Lithium Metal Batteries An of-the-moment treatment of liquid electrolytes used in lithium metal batteries Considered by many as the most-promising next-generation batteries, lithium metal batteries have grown in popularity due to their low potential and high capacity. Crucial to the development of this technology, electrolytes can provide efficient electrode electrolyte interfaces, assuring the interconversion of chemical and electrical energy. The quality of electrode electrolyte interphase, in turn, directly governs the performance of batteries. In Liquid Electrolyte Chemistry, provides a comprehensive look at the current understanding and status of research regarding liquid electrolytes for lithium metal batteries. Offering an introduction to lithium-based batteries from development history to their working mechanisms, the book further offers a glimpse at modification strategies of anode electrolyte interphases and cathode electrolytic interphases. More, by discussing the high-voltage electrolytes from their solvents—organic solvents and ionic liquids—to electrolyte additives, the text provides a thorough understanding on liquid electrolyte chemistry in the remit of lithium metal batteries. Liquid Electrolyte Chemistry for Lithium Metal Batteries readers will also find: A unique focus that reviews the development of liquid electrolytes for lithium metal batteries State-of-the-art progress and development of electrolytes for lithium metal batteries Consideration of safety, focusing the design principles of flame retardant and non-flammable electrolytes Principles and progress on low temperature and high temperature electrolytes Liquid Electrolyte Chemistry for Lithium Metal Batteries is a useful reference for electrochemists, solid state chemists, inorganic chemists, physical chemists, surface chemists, materials scientists, and the libraries that supply them.
This open access book provides integrated treatment technology of rural domestic sewage, and highlights ten typical cases in China. The integrated sewage treatment system (ISTE) combine sewage pretreatment, biological treatment, sedimentation, and disinfection, which particularly suitable for decentralized domestic wastewater treatment in rural areas without pipe networks. The main advantages of ISTE include the compact structure, small footprint, short construction period, high treatment efficiency, and economical rationality. First applied in Japan, ISTE has recently achieved rapid growth in China in the last decade. The relevant technological R&D, practice, and promotion experience accumulated by Chinese enterprises can offer significant reference to other developing countries and regions. The book consists of five chapters. The first chapter introduces characteristics, environmental risks and management styles of rural domestic sewage. The second chapter illustrates the collection and treatment approaches for rural domestic sewage.The third chapter presents the integrated sewage treatment process of high efficiency. The fourth chapter involves the design concept, manufacturing requirements, automatic control, and the cloud management system for ISTE. Chapter five covers ten typical application cases of ISTE in multiple regions of China. This book is suitable for graduate students, engineers, university teachers and government administrators engaged in decentralized sewage treatment.
In this hybrid year, let us supplement your AP classroom experience with this easy-to-follow study guide. The immensely popular 5 Steps to a 5 AP Chinese guide has been updated for the 2020-21 school year and now contains: 2 full-length practice exams Up-to-Date Resources for COVID 19 Exam Disruption Comprehensive overview of the AP Chinese Language and Culture exam format Realistic exercises, including print and audio texts Chinese characters presented in both traditional and simplified characters A complete audio program on MP3 disk to help you develop solid listening-comprehension skills and gain valuable interactive speaking practice
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