Let be a simple graph with vertex set and edge set . Let have at least vertices of degree at least , where and are positive integers. A function is said to be a signed -edge cover of if for at least vertices of , wher...Let be a simple graph with vertex set and edge set . Let have at least vertices of degree at least , where and are positive integers. A function is said to be a signed -edge cover of if for at least vertices of , where . The value , taking over all signed -edge covers of is called the signed -edge cover number of and denoted by . In this paper we give some bounds on the signed -edge cover number of graphs.展开更多
The 70-sq km Suzhou Industrial Park is situated in the eastern part of Suzhou city, with Donghuan road in the west, Luojiang in the north, Qiupu in the east and Huangtiantang in the south. It has a population of 620,0...The 70-sq km Suzhou Industrial Park is situated in the eastern part of Suzhou city, with Donghuan road in the west, Luojiang in the north, Qiupu in the east and Huangtiantang in the south. It has a population of 620,000 and the project covering three phases is to be finished in 15 years. Plans for the first phase of work on the opening of the展开更多
On June 3,Chinalco and China National Administration of Coal Geology signed cooperation agreement for strategic cooperation&cooperation agreement between Chinalco Guangxi Nonferrous Rare Earth Development Company ...On June 3,Chinalco and China National Administration of Coal Geology signed cooperation agreement for strategic cooperation&cooperation agreement between Chinalco Guangxi Nonferrous Rare Earth Development Company and Xuzhou Jin Shi Pengyuan Rare Earth Material Factory.According to the agreement,both sides would jointly support Chinalco Guangxi Nonferrous Rare Earth Development Company and Xuzhou Jin Shi Pengyuan Rare Earth Material Factory to carry out comprehensive cooperation covering展开更多
China National Petroleum Corporation(CNPC) is an integrated energy chemical cor-poration with businesses covering oil and gasoperations,oilfield services,engineering/construction。
Henan Haixing Chemical Science & Technology Co.,Ltd.started construc-tion of the 300 000 t/a coal tar processing project in Baofeng County of Henan province in July.The project covered an area of 39 hectares and w...Henan Haixing Chemical Science & Technology Co.,Ltd.started construc-tion of the 300 000 t/a coal tar processing project in Baofeng County of Henan province in July.The project covered an area of 39 hectares and will be executed in two phases.The first phase has an investment of RMB350 million and will展开更多
文摘Let be a simple graph with vertex set and edge set . Let have at least vertices of degree at least , where and are positive integers. A function is said to be a signed -edge cover of if for at least vertices of , where . The value , taking over all signed -edge covers of is called the signed -edge cover number of and denoted by . In this paper we give some bounds on the signed -edge cover number of graphs.
文摘The 70-sq km Suzhou Industrial Park is situated in the eastern part of Suzhou city, with Donghuan road in the west, Luojiang in the north, Qiupu in the east and Huangtiantang in the south. It has a population of 620,000 and the project covering three phases is to be finished in 15 years. Plans for the first phase of work on the opening of the
文摘On June 3,Chinalco and China National Administration of Coal Geology signed cooperation agreement for strategic cooperation&cooperation agreement between Chinalco Guangxi Nonferrous Rare Earth Development Company and Xuzhou Jin Shi Pengyuan Rare Earth Material Factory.According to the agreement,both sides would jointly support Chinalco Guangxi Nonferrous Rare Earth Development Company and Xuzhou Jin Shi Pengyuan Rare Earth Material Factory to carry out comprehensive cooperation covering
文摘China National Petroleum Corporation(CNPC) is an integrated energy chemical cor-poration with businesses covering oil and gasoperations,oilfield services,engineering/construction。
文摘Henan Haixing Chemical Science & Technology Co.,Ltd.started construc-tion of the 300 000 t/a coal tar processing project in Baofeng County of Henan province in July.The project covered an area of 39 hectares and will be executed in two phases.The first phase has an investment of RMB350 million and will
