vehicles from 2005. Especially, a traditional push strategy(producer-based method) was switched to a pull strategy(customer-based mothod) in the SCM part.
2. Trying to upgrade the quality through 6-sigma methodology
The 6-sigma movements started in earnest on November 1999. Hyundai Motor have trained 3500 experts of black belt and green belt, and attained several its goals;3800 projects, cost
Global Trend towards Protecting the Ozone Layer
Global Convention and Protocol
The Vienna Convention (for the Protection of the Ozone Layer)
The Vienna Convention is a treaty concerning the customary international law on treaties between states. It codifies some groundwork of international law trying to protect the ozone layer. The US was the one the biggest producers and consumers of
is good one to be PIMs
Operate at very low temperature
High efficiency of a PEM ; 40 to 60 percent
Compact and light units (Small volume)
Solid electrolyte ; easier and cheaper
manufacture and more safety
Less corrosion ; longer cell & stack life
Excellent power density
Small noise
Convenience of installation
High durability
Environmentally friendly
1.Introduction
A fuel cell is a device that converts the chemical energy of a fuel (hydrogen, natural gas, methanol, gasoline, etc.) and an oxidant (air or oxygen) into electricity. A fuel cell operates like a battery. However, a fuel cell does not require recharging, it produces electricity and heat as long as fuel and an oxidizer are supplied.
Fuel cell construction generally consists
3. Patent Analysis
3.1 Data
Patent retrieve used KIPRIS(Korea Intellectual Property Right Information Service / Http://www.kipris.or.kr) under the Korean Industrial Property Office. Because KIPRIS constructs internal and external intellectual property right all connection information that the Korean Industrial Property Office possesses by DB this where individual, patent attorney, heavy h