... phim hm tng quan GGA l phim hm LYP, ta cú biu thc: (1.41) + Phng phỏp BH and HLYP: Gm phim hm trao i B, phim hm Half and Half v phim hm tng quan LYP + Phng phỏp BH& HLYP v B3LYP l cỏc phng ... tng quan trao i DFT thun khit Do vy phng phỏp ny c gi l phng phỏp DFT hn hp Vớ d: + Phim hm Half and Half: Nng lng trao i HF gúp mt na v nng lng tng quan trao i : (1.39) + Phim hm B3 l phim hm ... tớch phõn hai tõm cn phi tớnh Do ú, ngi ta thng s dng cỏc phng phỏp tớnh gn ỳng 1.2 C S CA CC PHNG PHP TNH GN NG LNG T Cỏc phng phỏp tớnh gn ỳng c xõy dng da trờn phng trỡnh Roothaan Hu ht cỏc phng...
... POPULATION AND DISTRIBUTION OF PINUS KREMPFII H.LEC IN LAM DONG PROVINCE Nguyen Thanh Men Lam Dong Silvicultural Expermentation Research Centre SUMMARY Pinus krempfii Lecomte is a rare and endangered ... endangered species as EN (endangered) and V (Vulnerable) in the Vietnam Red Book P krempfii has a very restricted distribution occurring in the Bidoup-Nui Ba National Park and at Đa Nhim in Lam Dong Province ... Ba-Khanh Hoa and Nui Chua regions in Ninh Thuan Province In Lam Dong Province, P krempfii occurs as individual trees or in scattered clumps in association with mixed broad-leaf and conifer forests...