Wenzhong Zhu

Sichuan University of Science and Engineering

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Xiaobin Wang

Xinjiang New Energy Research Institute (China)

D. Palmer

Seagate (United States)

Yiran Chen

Duke University

Hai Li

Duke University

Dan Liu

Shanghai Electric (China)

Haiwen Xi

Western Digital (United States)

Dimitar Dimitrov

University of National and World Economy

David Kaiser

Massachusetts Institute of Technology

Wan Muchun

Guangdong University of Foreign Studies

Wei Xu

Southeast University

Cooperative Institutions

Seagate (United States)

Guangdong University of Foreign Studies

Chinese Academy of Sciences

Sichuan University of Science and Engineering

Guilin University of Electronic Technology

Zhejiang University

Sun Yat-sen University

University of Electronic Science and Technology of China

Western Digital (United States)

University of Science and Technology of China

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A New Perspective of the Concept and Development Trend of Business English in Higher Education Institutions

International Education Studies (2008)

Wenzhong Zhu

In recent years, researchers have made an ongoing research into the concept and definition of business English in higher education institutions. There have been quite a number of different ideas, but so far some disagreement still exists. The paper, through review and reflection into these researchers and their ideas, has concluded that the concept and implication of business English in China has been broadened, and business English, as a comprehensive inter-discipline developed from the EGBP in ESP, is now faced with some new development trends such as specialty regulation and degree-awarding flexibility.

Business English

Reflection

10.5539/ies.v1n2p28

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Citations (3)

New Trends of International Settlement Methods and Countermeasures

Guoji jing-mao tansuo (2009)

Wenzhong Zhu

In modern intentional trade,the methods or terms of international settlement have changed silently,among which L/C which used to be in a dominating position is declining gradually compared with collection and remittance in recent years,and a mixed method of international settlement is becoming more and more popular. The paper makes an analysis of these new trends,underlying reasons and related risks,and puts forwards some corresponding countermeasures from the three aspects of government,banks and enterprises in order to offer some beneficial references to foreign trade enterprises.

Settlement (finance)

Remittance

Position (finance)

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Magnetic properties and magnetocaloric effect of GdTbHoEr-based high-entropy alloy ribbons

Journal of Materials Science Materials in Electronics (2022)

Wenzhong Zhu Lei Ma Mufen He Shifan Lu Z. K. Li

Magnetic refrigeration

Cooling capacity

10.1007/s10854-022-09283-6

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Citations (2)

A general approach for overwrite spectra

Journal of Applied Physics (2003)

Shaoping Li Huaan Zhang Wenzhong Zhu

A generalized analysis has been presented for describing the influence of overwrite (or reverse overwrite) interferences on the spectra of readback signal, which extends the previous theory in describing the spectra characteristics caused by the hard–easy transition shift. Interestingly, it also suggests that the residual signal from the overwritten data pattern could be periodic as well. Essentially, an imprint effect arising from old data pattern could also create an amplitude-modulated signal that generates sidebands around the fundamental and odd harmonics of the overwriting signal.

SIGNAL (programming language)

10.1063/1.1543124

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Citations (8)

Experimental study of reader nonlinearity in perpendicular recording using pseudorandom sequences

IEEE Transactions on Magnetics (2003)

Wenzhong Zhu David Kaiser J. Judy D. Palmer

The reader nonlinearity is characterized using the pseudorandom sequence method. A simple model is developed and simulated waveforms are used to substantiate the physical interpretation of the echo pulse that corresponds to the reader nonlinearity. It is shown that the measured reader saturation effect increases relatively with the linear density when the linear density is not extremely high. Depending on the extent of the reader saturation, the measurement of nonlinear transition shift (NLTS) can move from positive to negative even though the intrinsic NLTS is positive in perpendicular recording. The optimal write precompensation is dependent on both NLTS and reader saturation. It is also shown that as the linear density goes higher, the amplitude exhibits more asymmetry due to the intrinsic reader asymmetry and the reader asymmetry can change sign.

Perpendicular recording

Linear density

Saturation (graph theory)

10.1109/tmag.2003.815536

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Citations (8)

Based on PLC of Coal Mine Machine Control System Reliability Design and Implementation

Coal Mine Machinery (2013)

Wenzhong Zhu

Coal mine machine mainly divided into horizontal axis machine(EBH) and vertical axis machine(EBZ) two kinds,are coal mine work assignments very important kind of machinery.This article from the electronic control system,based on the design of the system based on single chip microcomputer,for coal mine machine of the reliability design of electric control system are analyzed,and its realization is discussed.

Micro computer

Machine tool

Realization (probability)

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Design Margin Exploration of Spin-Transfer Torque RAM (STT-RAM) in Scaled Technologies

IEEE Transactions on Very Large Scale Integration (VLSI) Systems (2009)

Yiran Chen Xiaobin Wang Hai Li Haiwen Xi Yuan Yan

We propose a magnetic and electric level spin-transfer torque random access memory (STT-RAM) cell model to simulate the write operation of an STT-RAM. The model of a magnetic tunneling junction (MTJ) is modified to take into account the electrical response of the MOS transistor that is connected to the MTJ. A dynamic design flow is also proposed to minimize any unnecessary design margin in an STT-RAM cell design by leveraging from the new STT-RAM cell model. The design of an STT-RAM cell with a one-transistor-one-MTJ (1T1J) structure shows that our technique can reduce more than 22% of the STT-RAM cell area, compared with a conventional STT-RAM cell model at a TSMC 90-nm technology node. The performance and the reliability of the memory cell were unaffected. By using our model, we analyzed the scalability of STT-RAM technology down to a 22-nm Bulk-CMOS technology node. The tradeoffs among the MTJ switching current, the thermal stability of the MTJ and the MOS transistor driving strength are discussed. Some magnetic- and circuit-level solutions to achieve 9F ² STT-RAM cell area at 22-nm technology node are also discussed.

Spin-transfer torque

Magnetoresistive random-access memory

Non-Volatile Memory

Tunnel magnetoresistance

Memory cell

10.1109/tvlsi.2009.2032192

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Citations (83)

Heat-Assisted Interlaced Magnetic Recording

IEEE Transactions on Magnetics (2017)

Steven Granz Wenzhong Zhu Edmun Chian Song Seng Utt Heng Kan Chris Rea

Heat-assisted magnetic recording (HAMR) is the next generation hard disk drive technology that enables continued and significant areal density growth. There are currently two common architectures for the layout of tracks in hard disk drives: conventional magnetic recording (CMR) and shingled magnetic recording (SMR). In CMR, any track can be written at any time and neighboring tracks do not intentionally overlap. In SMR, the tracks are written sequentially in bands with the tracks intentionally overlapping like shingles on a roof. In this paper, we introduce a novel track layout, interlaced magnetic recording (IMR), and apply it to a HAMR recording system. With heat-assisted IMR, we observed a 31% increase in areal density over HAMR CMR whereas in a HAMR SMR architecture, we observed a 27% increase in areal density over HAMR CMR.

Area density

Heat-assisted magnetic recording

10.1109/tmag.2017.2748719

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Citations (29)

On Differences between General English Teaching and Business English Teaching

English Language Teaching (2008)

Wenzhong Zhu Liao Fang

With the accelerating rate of globalization, business exchanges are carried out cross the border, as a result there is a growing demand for talents professional both in English and Business. We can see that at present Business English courses are offered by many language schools in the aim of meeting the need for Business English talent. Many researchers argue that no differences can be defined between Business English teaching and General English teaching. However, this paper concludes that Business English is different from General English at least in such aspects as in the role of teacher, in course design, in teaching models, etc., thus different teaching methods should be applied in order to realize expected teaching goals.

Business English

Teaching english

International business

College English

10.5539/elt.v1n2p90

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Citations (19)

Access scheme of Multi-Level Cell Spin-Transfer Torque Random Access Memory and its optimization

Yiran Chen Xiaobin Wang Wenzhong Zhu Hai Li Zhenyu Sun

In this work, we study the access (read and write) scheme of the newly proposed Multi-Level Cell Spin-Transfer Torque Random Access Memory (MLC STT-RAM) from both the circuit design and architectural perspectives. Based on the physical principles of the resistance state transition of MLC STT-RAM, we proposed a read circuitry based on Dichotomic search algorithm and three write schemes with various design complexities - simple, complex, and hybrid schemes. The circuit and architectural level evaluations were conducted to analyze the power and performance tradeoffs in each proposed write mechanisms of MLC STT-RAM.

Spin-transfer torque

Random access

10.1109/mwscas.2010.5548848

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Citations (68)