In order to deal with the problem of multi-state frequency stability at DC receiving end, this paper studied the variation of inertia time constant and static characteristic coefficient of equivalent machine with or without pumped storage power generation by using the performance indexes of transient, dynamic and static frequency stability, namely
Abstract Certification of quantum nonlocality plays a central here role in practical applications like device-independent quantum cryptography and random number generation protocols.These applications entail the challenging problem of certifying quantum nonlocality, something that is hard to achieve when the target quantum state is only weakly enta
The unusual resin from some species of Elaeagia, a genus now found in certain parts of Central America and South America, was probably first utilized by native peoples in Colombia more than here a thousand years ago.It became a crucial part of often elaborately decorated objects made in the southwestern city of Pasto in the colonial period, and it
Climate change has been thought to drive the accelerated expansion of global drylands.However, many studies reveal that Arid Central Asia (ACA) has been warming and wetting in recent decades, representing an anomalous response to global climate change.Given that ACA is composed of complex ecosystems and landforms, it is not clear whether or not thi
Gosaba C.D.Block is an active tidal island of the Indian Sundarban.In this island, human-induced modification of the natural drainage system poses serious threats to the estuarine environment.It was started during the British colonial period through the construction of embankment to protect the reclaimed coastal land from saline simply southern cat