Micropropagation of Chinese Plum (Prunus salicina Lindl.) Using Mature Stem Segments

An effective in vitro culture system for mature stem segments of Chinese plum (Prunus salicina Lindl. cv. ‘Gulf-ruby’) was established. The nodal segments of 1 cm were cut from young shoots in open field, sterilized and established in vitro. The successfully induced culture was achieved on woody plant medium (WPM) supplemented with 0.05-0.1 mg/l IBA, 0.5-1.0 mg/l BA, 30 g/l glucose, 5 g/l agar and 1.0 g/l Vc. The successful shoot multiplication was achieved on WPM with 0.05-0.1 mg/l IBA, 0.2 mg/l BA, 0.3 mg/l KT and 1.0 g/l casein hydrolysate. Elongation of the shoot in vitro was facilitated on WPM with 0.05 mg/l IBA, 0.3 mg/l KT/BA and 1.0 g/l casein hydrolysate. The shoots from microcuttings were rooted in 1/2 MS (half strength MS) supplemented with 0.2-0.5 mg/l IBA, 15 g/l sucrose and 20-40 mg/l phloroglucinol (PG). Regenerated shoots successfully acclimatized to greenhouse conditions and grew vigorously with no apparent phenotypic aberrations

大型国企一线工人的心理需要状况及其与离职倾向、工作满意度的关系——以A国企为例

Based on Maslow’s hierarchy of needs theory, the article to investigate the worker’s psychological needs in a large state-owned enterprises. It analyzed workers of different ages , different education level, and their differences in psychological needs structure characteristics and strength.The subjective turnover intention and job satisfaction are correlative of psychological needs. The article proposed the suitable management strategies of the worker’s psychological needs.本研究依据需要层次理论，以国业有企A为例，对一线工人的心理需要进行调查研究，分析了不同年龄、不同受教育程度的工人，心理需要结构特征和强度的差异，并对工人的离职倾向、工作满意度与不同需要层次的关系进行相关研究。提出了适应工人不同心理需要特征的管理策略建议

Adaptive Guaranteed-Performance Consensus Control for Multiagent Systems With an Adjustable Convergence Speed

Adaptive guaranteed-performance consensus control problems for multi-agent systems are investigated, where the adjustable convergence speed is discussed. This paper firstly proposes a novel adaptive guaranteed-performance consensus protocol, where the communication weights can be adaptively regulated. By the state space decomposition method and the stability theory, sufficient conditions for guaranteed-performance consensus are obtained, as well as the guaranteed-performance cost. Moreover, since the convergence speed is usually adjusted by changing the algebraic connectivity in existing works, which increases the communication burden and the load of the controller, and the system topology is always given in practical applications, the lower bound of the convergence coefficient for multi-agent systems with the adaptive guaranteed-performance consensus protocol is deduced, which is linearly adjustable approximately by changing the adaptive control gain. Finally, simulation examples are introduced to demonstrate theoretical results

Composite Cyclotomic Fourier Transforms with Reduced Complexities

Discrete Fourier transforms~(DFTs) over finite fields have widespread applications in digital communication and storage systems. Hence, reducing the computational complexities of DFTs is of great significance. Recently proposed cyclotomic fast Fourier transforms (CFFTs) are promising due to their low multiplicative complexities. Unfortunately, there are two issues with CFFTs: (1) they rely on efficient short cyclic convolution algorithms, which has not been investigated thoroughly yet, and (2) they have very high additive complexities when directly implemented. In this paper, we address both issues. One of the main contributions of this paper is efficient bilinear 11-point cyclic convolution algorithms, which allow us to construct CFFTs over GF$(2^{11})$. The other main contribution of this paper is that we propose composite cyclotomic Fourier transforms (CCFTs). In comparison to previously proposed fast Fourier transforms, our CCFTs achieve lower overall complexities for moderate to long lengths, and the improvement significantly increases as the length grows. Our 2047-point and 4095-point CCFTs are also first efficient DFTs of such lengths to the best of our knowledge. Finally, our CCFTs are also advantageous for hardware implementations due to their regular and modular structure.Comment: submitted to IEEE trans on Signal Processin