Ⅰ. INTRODUCTION Even studied the alphabetical k-ary trees which play an important role in the theory of code. Glassey and Karp dealt with the relationship between number s of internal nodes and number n of leaves of ...Ⅰ. INTRODUCTION Even studied the alphabetical k-ary trees which play an important role in the theory of code. Glassey and Karp dealt with the relationship between number s of internal nodes and number n of leaves of a k-ary tree, i.e.展开更多
Chinese angelica [Angelica sinensis (Oily) Diels], a species of Umbelliferae, is an important medicinal herb.Its callus formatian and plant regeneration have been achieved in our laboratory. Study on protoplast cultur...Chinese angelica [Angelica sinensis (Oily) Diels], a species of Umbelliferae, is an important medicinal herb.Its callus formatian and plant regeneration have been achieved in our laboratory. Study on protoplast culture of this species has not yet been reported. In this paper we describe the successful culture of Chinese angelica protoplasts induced to form calli.展开更多
The hydrated lanthanum acetate, LaAc3·1.5H2O（I）, was reported by and Karraker in 1964 and 1969 respectively. In our laboratory, a new compound has been prepared. As shown by the elemental analysis, Karl Fischer...The hydrated lanthanum acetate, LaAc3·1.5H2O（I）, was reported by and Karraker in 1964 and 1969 respectively. In our laboratory, a new compound has been prepared. As shown by the elemental analysis, Karl Fischer Titration and TG, it is a monohydrate, LaAc3·H2O. Its X-ray diffraction pattern is quite different from that of （I）.Through TG, DTG, DSC, IR, etc. studied, it can be ascertained that its thermal dehydration is a one-step process. The dehydration enthalpy, ΔHd, estimated by DSC is 66.77±0.24KJ·mol-1.展开更多
Ⅰ. INTRODUCTION Molybdenum is one of the metal elements which is often found in biogenic enzyme, and it is probable that it forms active centers in the form of atomic clusters in some organisms. For example, the acti...Ⅰ. INTRODUCTION Molybdenum is one of the metal elements which is often found in biogenic enzyme, and it is probable that it forms active centers in the form of atomic clusters in some organisms. For example, the active center of nitrogenase consists of some展开更多
文摘Ⅰ. INTRODUCTION Even studied the alphabetical k-ary trees which play an important role in the theory of code. Glassey and Karp dealt with the relationship between number s of internal nodes and number n of leaves of a k-ary tree, i.e.
文摘Chinese angelica [Angelica sinensis (Oily) Diels], a species of Umbelliferae, is an important medicinal herb.Its callus formatian and plant regeneration have been achieved in our laboratory. Study on protoplast culture of this species has not yet been reported. In this paper we describe the successful culture of Chinese angelica protoplasts induced to form calli.
文摘The hydrated lanthanum acetate, LaAc3·1.5H2O（I）, was reported by and Karraker in 1964 and 1969 respectively. In our laboratory, a new compound has been prepared. As shown by the elemental analysis, Karl Fischer Titration and TG, it is a monohydrate, LaAc3·H2O. Its X-ray diffraction pattern is quite different from that of （I）.Through TG, DTG, DSC, IR, etc. studied, it can be ascertained that its thermal dehydration is a one-step process. The dehydration enthalpy, ΔHd, estimated by DSC is 66.77±0.24KJ·mol-1.
文摘Ⅰ. INTRODUCTION Molybdenum is one of the metal elements which is often found in biogenic enzyme, and it is probable that it forms active centers in the form of atomic clusters in some organisms. For example, the active center of nitrogenase consists of some
