A peaking power plant (or peaker) is a power station that only runs during peak hours of demand of electricity. Because of that, the price of electricity it generates is generally higher than the electricity generated by base load power plant, which operates continuously throughout the year. Peak hours may include hot afternoons when air conditioners are working.
Examples of peaking power plants are a hydropower plant, pumped-storage hydro power plant, and gas-fired power plant. Nuclear and solar power are not used in this way.
Analytical psychology
Analytical psychology is the school of psychology that came from the ideas of Swiss psychiatrist Carl Jung. Analytical psychology has two main parts:
Load following power plant
A load following power plant is a power plant that can adjust the amount of electricity it generates to match the changing demand throughout the day. Load following power plants are usually in between base load power plant and peaking power plant in terms of construction cost, cost of the electricity it generates, efficiency, and capacity.
Hydroelectric power plant can be considered load following power plant.
Cable tray
A cable tray is a system to put insulated cables and other wiring (communication, network etc.) in building structures, such as in office buildings, residential, industries etc. A cable tray system gives easy access. This is useful when adding new cables or replacing the old cables on the tray.
Cable trays can be made out of galvanized steel, stainless steel, aluminum or plastic. The choice depends on how it will be used or where it will be placed.
Brownout (electricity)
A brownout is a drop of voltage in an electrical power supply. Brownouts may be done intentionally in order to reduce the load during an emergency. This is done to prevent a total supply failure ("blackout"). Brownouts can also be caused accidentally by faults in the electrical grid which cause a drop in voltage.
Adams County, Indiana
Adams County is a county in Indiana. Its county seat is Decatur.
Independent Power Producer
An Independent Power Producer (IPP) or Non-Utility Generator (NUG) is an organisation that owns a power-producing facility and can sell electricity to utility companies and electricity users. An IPP is usually a private company and is generally not a public utility company. Transaction of electricity between IPP with its customers are usually regulated under the power purchase agreement.
Allen County, Indiana
Allen County is a county in Indiana. Its county seat is Fort Wayne.
Bartholomew County, Indiana
Bartholomew County is a county in Indiana. Its county seat is Columbus.
Al-Ma'mun
Abū Jaʿfar Abdullāh al-Maʾmūn ibn Harūn (also spelled Almamon, Al-Maymun, Al-Ma’moon, and el-Mâmoûn; 13 September 786 – 9 August 833) was an Abbasid caliph. He reigned from 813 until his death in 833.
Al-Ma’mun was born on 13 September 786 AD in Baghdad. His father was Harun al-Rashid, who was an Abbasid caliph. He was a member of the third dynasty of the descendants of Muhammad who were caliphs of Islam. While his father ruled, al-Ma’mun was the governor of Khorasan. After al-Ma’mun was born his father had another son named al-Amin. Before his father died he announced that al-Amin would be the new caliph and al-Ma’mun would continue to be the governor of Khorasan even though al-Ma’mun was older. When Harun al-Rashid died and al-Amin became the caliph, he took away al-Ma’mun's ability to inherit the throne after he died. The two brothers went to war against each other. Al-Ma’mun defeated al-Amin. He cut off al-Amin's head. Since al-Amin had no other heir to the throne, al-Ma’mun became the new caliph.
During his reign al-Ma’mun tried to reunite Sunnis and Shiites. These are the two main brances of Islam that have different beliefs on who should lead Islam. Al-Ma’mun opened many learning centers in his empire. One big one was in Baghdad, which was called the House of Wisdom. Many other libraries and schools were built all over the empire. He was also a big sponsor of philosophy and astronomy.
He had one wife who he tried to divorce. However, his wife got a powerful judge who refused to allow the divorce. He had no children and no heirs with this wife. Instead, he chose another woman to provide an heir.
Al-Ma’mun died on August 9, 833. He remained caliph until his death.
Anna Komnene
Anna Komnene (sometimes spelled Comnena; , "") was a Greek princess, scholar and doctor. She was the eldest daughter of Emperor Alexios I Komnenos of Byzantium and Irene Doukaina.
Komnene was born in Constantinople on 2 December 1083. She was originally engaged to Constantine Ducas, heir to the throne. Unfortunately he died at a young age and Anna married Nicephorus Bryennius in 1097 AD. Anna wanted her husband to inherit the throne. Even when her father was dying she tried to persuade him to make her husband heir.
Anna's brother, John II Komnenos, took the throne in 1188. Anna then tried to remove her brother from the throne, and her husband refused to help her. Anna was caught. She then gave up her property and retired to a convent. While she lived there, Anna wrote her book, "The Alexiad". This is about the Byzantine Empire. The 15 books of "The Alexiad" were written in Greek. Her book is still important because Anna had access to the royal archives and had an inside view of politics.
Anna spent a large part of her life in a convent, but she did not become a nun until shortly before she died. She died in 1153 or 1154 AD.
Eleazar of Worms
Eleazar of Worms (; c. 1176 – 1238), or Eleazar ben Judah ben Kalonymus, was a Jewish mystic. He was an important student of the Talmud. He was also the last major member of the Chassidei Ashkenaz, a group of German Jewish mystics.
Eleazar of Worms was born in Mainz. He traveled and studied at many centers of learning in Germany and northern France. He belonged to the Kalonymus family, which was one of the most important German-Jewish families at the time. His father, Judah B. Kalonymus, was one of the leading scholars of his generation. Eleazar learned from his father about Jewish law and theology.
Eleazar spent most of his life living in Worms. He was a Jewish pietist. Eleazar wrote many books and poems on praising God, and studied liturgical poetry, halakhah, theology, ethics and exegesis. Some of his works were printed but many have been lost. Eleazar witnessed and suffered the persecution of Jews. Eleazar's wife, two daughters were murdered, and he and his son were badly injured.
Xuanzang
Xuanzang (; ; about 602 – 664) was a Chinese Buddhist scholar, traveller and translator. He described the relations between China and India in the early Tang Dynasty.
Xuanzang was born in what is now Henan province in 602. He was the youngest of four sons. One of his older brothers, Changjie, was a Buddhist monk. Changjie was impressed by Xuanzang's scholarly nature and brought him to a monastery in Luoyang. He began the process to become a monk at the age of thirteen. He studied Mahayana Buddhism at the monastery.
In 618, the Sui Dynasty fell. To escape the conflict, Xuanzang and his brother went to Chang'an, the new capital of the Tang Dynasty. He was not satisfied there so he travelled on to Chengdu in Sichuan. There, he joined the monastery and was made a monk at the age of 20. He returned Chang'an after a few years.
He later travelled all around China in search of sacred books of Buddhism. He wanted to learn from the roots of Buddhist practice. He became famous for his seventeen-year journey to India. His journey is recorded in the "Great Tang Records on the Western Regions". This in turn provided the inspiration for the novel "Journey to the West" written by Wu Cheng'en during the Ming Dynasty, around 900 years after Xuanzang's death.