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An efficient modulation can be obtained by graphene due to its outstanding light-matter interaction, and many kinds of modulators based on graphene have been studied during the last couple of years. However, there still exist unsolved issues in graphene-based modulators, such as how to make a balance between modulation depth and modulation bandwidth. This work proposes a reflective modulator with relatively high-modulation depth and wide working bandwidth. The proposed modulator has a simple five-layered structure of graphene–silica–graphene–silicon-metal. They use an effective method of finite element method to simulate the performance of this modulator, and obtain a modulation depth of 96% with a low bias voltage of ∼4 V. Furthermore, they calculate the modulation speed by the equivalent circuit method, and obtain the maximum modulation speed of about 25 kHz and a wide broadband of 72 kHz from theoretical analysis. Therefore, this high-performance modulator provides an effective method for terahertz communication devices.

An efficient multi-rate encoder for IEEE 802.16e LDPC codes which outperforms current single rate encoders with acceptable hardware consumption and efficient memory consumption is proposed. This design utilizes the common dual-diagonal structure in parity matrices to avoid the inverse matrix operation which requires extensive computations. Parallel Matrix-vector multiplication (MVM) units, bidirectional operation and storage compression are applied to this multi-rate encoder to increase the encoding speed and significantly reduce the quantity of memory bits required. The proposed encoding architecture also contributes to the design of multi-rate encoders whose parity matrices are dual-diagonally structured and have an Approximately lower triangular (ALT) form, such as in IEEE 802.11n and IEEE 802.22. Simulation results verified that the proposed encoder can efficiently work for all code rates specified in WIMAX standard. With a maximum clock frequency of 117 MHz, the encoder achieves 3 to 10 times higher throughput than prior works. The proposed encoder is capable to switch among six rates by adjusting the input parameter and it achieves the throughput up to 1Gbps.

Probiotics are defined as live microorganisms that, when administered in adequate amounts, confer a health benefit upon the host. At present, probiotics are gaining popularity worldwide and are widely used in food and medicine. Consumption of probiotics is increasing with further in-depth research on the relationship between intestinal flora and host health. Most people pay more attention to the function of probiotics but ignore their potential risks, such as infection and antibiotic resistance transfer to pathogenic microbes. Physiological functions, effects and mechanisms of action of probiotics were covered in this review, as well as the antibiotic resistance phenotypes, mechanisms and genes found in probiotics. Typical cases of antibiotic resistance of probiotics were also highlighted, as well as the potential risks (including pathogenicity, infectivity and excessive immune response) and corresponding strategies (dosage, formulation, and administration route). This timely study provides an avenue for further research, development and application of probiotics.

Graphene has many novel properties such as the ability of guiding plasmonic wave at terahertz (THz) frequencies, chemical potential shift as the carrier density changed. Since carrier density of graphene can be modified by bias voltage, the coupling coefficients or propagation loss of graphene plasmon can be modulated easily. A compact wideband terahertz modulator is proposed to modulate and guide plasmonic waves. The surface plasmon polariton (SPP) propagation and the modulation depth in the graphene biased structure are numerically investigated. The proposed THz plasmonic modulator has a wide working band about 1 THz and its modulation depth reaches about 76% at the frequency of 8 THz, which have potential application in THz communication.

Three-dimensional (3D) integration provides many benefits including high density, high bandwidth and low power consumption. Through-silicon via (TSV), which provides communication links for dies in vertical direction, is a critical design issue in 3D integration. Nevertheless, TSV is susceptible to failure in the fabrication and bonding, which may lead to partial interconnection in vertical direction, and thus can severely increase the cost and decrease the yield. To solve this issue, this paper proposes a TSV fault-tolerant scheme based on failure classification. Specifically, a 32-bit TSV channel is divided into four groups. Based on the results of TSV testing, inter-group TSV serialization, intra-group TSV serialization and localized fault-tolerant routing are proposed to solve different TSV failure classifications. By comparing with the existing works, the experiment results show the superiority of the proposed method in improving the overall network performance with an acceptable area and power overhead.

Large scale synchronous network-on-chip (NoC) requires complex clock tree design, which leads to a large area overhead and power consumption. Based on handshaking protocols, asynchronous NoC does not have global clock tree distribution, which results in a natural power saving mode without any explicit clock gating. However, the faults occurring in such asynchronous networks will seriously affect their performances. In this paper, we propose AFTER, an Asynchronous Fault-TolErant Router, which uses the quasi delay insensitive (QDI) logic. The proposed router is able to detect the faults of ports and links. Then, a fault-tolerant routing mechanism, based on the port priority in different quadrants, is proposed to maximize the number of packets that can be transmitted via the shortest paths. In this way, the fault-tolerance of asynchronous routers can be achieved. Besides that, AFTER could also achieve high scalability, and is suitable for the large scale globally asynchronous locally synchronous (GALS) system. The experimental results show that, when faults occur in the network, AFTER has a better fault-tolerance performance than the reference.

The Establishment of Personnel Training Model provide an important guarantee for the quality of personnel training, The domestic and international research status of electronic and information engineering teaching is analyzed. The reforms from different aspects and angles of personnel training have been carried out by many colleges and universities, but less involved in the testing area. Based on the specific situation in education of our school, several key issues of the process of cultivating talents who are equipped with the creativity and characteristics of electronic measurement is researched.

Scientific research and discussion is combined together efficiently by study-discuss teaching, and throughout the whole process of teaching. On the basis of the analysis of the connotation and function of study-discuss teaching, the necessity and significance of carrying out the study-discuss teaching of the course ‘microelectronics introduction’ is elaborated, the research and exploration of study-discuss teaching of “introduction microelectronics” which is the key construction course of China Jiliang University is discussed. Study-discuss teaching is benefit to cultivate the team cooperation ability, innovation consciousness and practical ability of students which is showed by the practice, a good foundation for students of their future research and employment is laid.

The Practical Teaching in the colleges and universities education has a great significance to improve the practical ability of students, cultivate their innovative talents and improve the education quality of the college and university. According to the educational philosophy of China Jiliang University: “Measurement made school, Standard made people, Quality made enterprise”, the reform and practice of Practical Teaching System for Electronic and Information Engineering major is involved in 5 parts as follows: develop curriculums which have characteristic practice, practice standards teaching, bilingual teaching, practice teaching of the major and compile the teaching materials.