Search results for: Qianyun Zhang

Items from 1 to 20 out of 30 results

article

Millifluidic Nanogenerator Lab‐on‐a‐Chip Device for Blood Electrical Conductivity Monitoring at Low Frequency

Jianzhe Luo, Wenyun Lu, Daeik Jang, Qianyun Zhang, more

Advanced Materials > 36 > 32 > n/a - n/a

The electrical conductivity of blood is a crucial physiological parameter with diverse applications in medical diagnostics. Here, a novel approach utilizing a portable millifluidic nanogenerator lab‐on‐a‐chip device for measuring blood conductivity at low frequencies, is introduced. The proposed device employs blood as a conductive substance within its built‐in triboelectric nanogenerator system....

article

Multifunctional Nanogenerator‐Integrated Metamaterial Concrete Systems for Smart Civil Infrastructure

Kaveh Barri, Qianyun Zhang, Jake Kline, Wenyun Lu, more

Advanced Materials > 35 > 14 > n/a - n/a

Creating multifunctional concrete materials with advanced functionalities and mechanical tunability is a critical step toward reimagining the traditional civil infrastructure systems. Here, the concept of nanogenerator‐integrated mechanical metamaterial concrete is presented to design lightweight and mechanically tunable concrete systems with energy harvesting and sensing functionalities. The proposed...

article

Patient‐Specific Self‐Powered Metamaterial Implants for Detecting Bone Healing Progress (Adv. Funct. Mater. 32/2022)

Kaveh Barri, Qianyun Zhang, Isaac Swink, Yashar Aucie, more

Advanced Functional Materials > 32 > 32 > n/a - n/a

Multifunctional Metamaterial Implants In article number 2203533, Amir H. Alavi and co‐workers present a new generation of patient‐specific metamaterial orthopedic implants that can detect the bone healing progress. The so‐called “self‐aware implants” can respond to their environment, empower themselves, and self‐monitor their condition. Bench‐top tests are performed using synthetic biomimetic and...

article

Patient‐Specific Self‐Powered Metamaterial Implants for Detecting Bone Healing Progress

Kaveh Barri, Qianyun Zhang, Isaac Swink, Yashar Aucie, more

Advanced Functional Materials > 32 > 32 > n/a - n/a

There is an unmet need for developing a new class of smart medical implants with novel properties and advanced functionalities. Here, the concept of “self‐aware implants” is proposed to enable the creation of a new generation of multifunctional metamaterial implantable devices capable of responding to their environment, empowering themselves, and self‐monitoring their condition. These functionalities...

article

Multifunctional Triboelectric Nanogenerator‐Enabled Structural Elements for Next Generation Civil Infrastructure Monitoring Systems

Qianyun Zhang, Kaveh Barri, Sadra R. Kari, Zhong Lin Wang, more

Advanced Functional Materials > 31 > 47 > n/a - n/a

There is a critical shortage in research needed to explore a new class of multifunctional structural components that respond to their environment, empower themselves and self‐monitor their condition. Here, the novel concept of triboelectric nanogenerator‐enabled structural elements (TENG‐SEs) is proposed to build the foundation for the next generation civil infrastructure systems with intrinsic sensing...

article

High‐performance natural rubber latex composites developed by a green approach using ionic liquid‐modified multiwalled carbon nanotubes

Yi Ge, Qianyun Zhang, Yandan Zhang, Fusheng Liu, more

Journal of Applied Polymer Science > 135 > 38 > n/a - n/a

The effect of multiwalled carbon nanotubes (MWCNTs) modified by a hydrophilic ionic liquids (ILs), including 1‐ethyl‐3‐methylimidazolium bromide and 1‐hexyl‐3‐methylimidazolium bromide, was studied. The obtained water‐suspensible carbon nanotubes (CNTs) were still homogeneously distributed in water a month after sonication. The microstructural development of filler networks and the uniform dispersion...

article

Dynamic Adaptive Video Streaming on Heterogeneous TVWS and Wi-Fi Networks

Luca Bedogni, Angelo Trotta, Marco Di Felice, Yue Gao, more

IEEE/ACM Transactions on Networking > 2017 > 25 > 6 > 3253 - 3266

Nowadays, people usually connect to the Internet through a multitude of different devices. Video streaming takes the lion’s share of the bandwidth, and represents the real challenge for the service providers and for the research community. At the same time, most of the connections come from indoor, where Wi-Fi already experiences congestion and coverage holes, directly translating into a poor experience...

article

Inhibitory effects of compound DMBT on hypoxia-induced vasculogenic mimicry in human breast cancer

Shuixian Li, Qianyun Zhang, Lichun Zhou, Yanhui Guan, more

Biomedicine & Pharmacotherapy > 2017 > 96 > C > 982-992

Breast cancer is one of the most serious malignant tumors that harm to women’s health. Vasculogenic mimicry (VM) is an alternative type of blood supplement independent of endothelial vessels, which refers to the formation of tumor cell-lined vessels and is associated with tumor invasion, metastasis and poor cancer patient prognosis. Prior antiangiogenic therapy just focused on vascular endothelial...

article

Compact low-profile UWB antenna with characteristic mode analysis for UHF TV white space devices

Qianyun Zhang, Yue Gao

IET Microwaves, Antennas & Propagation > 2017 > 11 > 11 > 1629 - 1635

A compact ultra-high frequency (UHF) ultra-wideband (UWB) antenna for Television TV white space (TVWS) applications is presented in this study. The proposed radiating body is transformed from a rectangular plate following physical essence revealed by characteristic mode analysis. Modal current distributions and their contributions to the total radiation are further analysed after printing the radiating...

article

Design of very-low-profile circular UHF small antenna using characteristic mode analysis

Yue Gao, Runbo Ma, Qianyun Zhang, Clive Parini

IET Microwaves, Antennas & Propagation > 2017 > 11 > 8 > 1113 - 1120

This study presents a very-low-profile circular ultra-high frequency (UHF) small antenna with a radiating body transformed from a monopole. The proposed radiating body is gradually improved by analysing fundamental modes of the structure with different ground planes via characteristic mode analysis (CMA). CMAs demonstrate operating principles of the radiating body so that a magnetic feeding loop is...

article

UHF passive RFID‐based sensor‐less system to detect humidity for irrigation monitoring

Daniel Alonso, Qianyun Zhang, Yue Gao, Daniel Valderas

Microwave and Optical Technology Letters > 59 > 7 > 1709 - 1715

This article aims to propose a RFID system to detect the humidity of the soil in flowerpots and help farmers to judge whether the plants should be watered or not. By tuning the tag to dry soil state, it achieves higher dynamic range and sensitivity (20 dB) compared to a commercial RFID tag performance. This approach saves the addition of a sensor element to the RFID tag to operate as a wireless sensor.

chapter

Design of an UHF UWB doubled annular ring antenna using characteristic mode analysis

Qianyun Zhang, Yue Gao

2017 11th European Conference on Antennas and Propagation (EUCAP) > 3464 - 3466

2017 11th European Conference on Antennas and Propagation (EUCAP)

In this paper, characteristic modes of a doubled annular ring are analyzed. Based on properties of significant radiating modes, energy radiated by dipoles close to the ring is coupled to excite the modes. Finally, resonances of multiple radiating modes join together and an ultra-high frequency (UHF) ultra-wide band (UWB) antenna is achieved.

chapter

A reconfigurable multiband CPW-fed antenna based on a quad-mode slot-line resonator

Biao Peng, Shufang Li, Ardavan Rahimian, Qianyun Zhang, more

2016 International Symposium on Antennas and Propagation (ISAP) > 108 - 109

2016 International Symposium on Antennas and Propagation (ISAP)

This paper presents the design and realisation of a compact reconfigurable quad-/dual-band microwave antenna, which has been implemented based on a novel quad-mode slotline resonator (SLR). The coplanar waveguide (CPW) feeding structure has also been designed in detail in order to be able to optionally function under both the weakly-or strongly-coupling conditions. Under the weakly-coupling condition,...

article

Oct2 and Bob1 are sensitive and specific markers in lineage determination of B cell lymphomas with no expression of conventional B cell markers

Liqun Yin, Jie Xu, Min Li, Vishnu Reddy, more

Histopathology > 69 > 5 > 775 - 783

AimsRare cases of B cell lymphomas do not express conventional B cell markers (CD20, CD79a and PAX5), and these types of lymphomas include anaplastic lymphoma kinase (ALK)‐positive large B cell lymphoma, plasmablastic lymphoma, primary effusion lymphoma and the solid variant of primary effusion lymphoma, extracavitary human herpesvirus 8 (HHV8)‐positive large B cell lymphoma. Establishing accurate...

chapter

Efficient implementation of maximization likelihood estimation to constrained measurement random latency probability in nonlinear system

Xiaoxu Wang, Qianyun Zhang, Yan Liang, Feng Yang, more

2016 International Conference on Control, Automation and Information Sciences (ICCAIS) > 126 - 131

2016 International Conference on Control, Automation and Information Sciences (ICCAIS)

This paper focuses on quickly identifying the unknown or time-varying random latency probability (RLP) of the measurements in the nonlinear networked multi-sensor system by resorting to the efficient implementation of maximization likelihood (ML) estimation. Firstly, the full-probability likelihood computation is equivalently transformed into a log-likelihood function summation form parameterized...

article

Stacked Patch Antenna With Dual-Polarization and Low Mutual Coupling for Massive MIMO

Yue Gao, Runbo Ma, Yapeng Wang, Qianyun Zhang, more

IEEE Transactions on Antennas and Propagation > 2016 > 64 > 10 > 4544 - 4549

Massive multiple input and multiple output (MIMO) has attracted significant interests in both academia and industry. It has been considered as one of most promising technologies for 5G wireless systems. The large-scale antenna array for base stations naturally becomes the key to deploy the Massive MIMO technologies. In this communication, we present a dual-polarized antenna array with 144 ports for...

chapter

TV White Space Network Provisioning with Directional and Omni-Directional Terminal Antennas

Qianyun Zhang, Xingjian Zhang, Oliver Holland, Mischa Dohler, more

2016 IEEE 84th Vehicular Technology Conference (VTC-Fall) > 1 - 5

2016 IEEE 84th Vehicular Technology Conference (VTC-Fall)

Operating at ultra-high frequency (UHF), TV white space (TVWS) can achieve long-distance communication and good in-building penetration, and has attracted increasing attention of regulators, researchers and stakeholders. This paper explores the potential of TVWS for network provisioning within a cluster of buildings, through a succession of tests. Different transmission distances, from 10m to over...

chapter

CPW-fed dual-/tri-band slot antenna based on multi-mode slot line resonator

Biao Peng, Shufang Li, Qianyun Zhang, Yue Gao, more

2016 IEEE International Symposium on Antennas and Propagation (APSURSI) > 205 - 206

2016 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting

In this paper, a dual-band CPW-fed antenna is designed with wide bandwith (BW) tunability. By using the odd-/even-mode theory, the resonant characteristics of the radiating element is vividly analyzed based on equivalent circuit models and design curves. There are four resonances, the 1^st of which performs as a parasitic resonance. The 2^nd resonance produces the first operating band while the 3^rd...

chapter

Compact U-shape ultra-wideband antenna with characteristic mode analysis for TV white space communications

Qianyun Zhang, Yue Gao, Clive G. Parini

2016 IEEE International Symposium on Antennas and Propagation (APSURSI) > 17 - 18

2016 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting

In this paper, a printed monopole working at ultra-high frequency (UHF) is designed for TV white space (TVWS) applications. By employing U-shape radiator, tapered feeding and notched ground plane, impedance matching of the antenna is improved and its size is reduced. The proposed antenna achieves 414MHz bandwidth within a dimension as compact as 231mm × 35mm × 0.8mm. Furthermore, characteristic mode...

chapter

UHF antennas for Machine-to-Machine communications and Internet Of Things

Yue Gao, Runbo Ma, Qianyun Zhang, Clive Parini

2016 10th European Conference on Antennas and Propagation (EuCAP) > 1 - 3

2016 10th European Conference on Antennas and Propagation (EuCAP)

Machine-to-Machine (M2M) communications are increasingly important as an enabler for emerging Internet of Things (IoT) applications. In this paper, two types of UHF antennas for M2M communications are summarized. Both types of the antennas operate around 480MHz and are low profile with a size of 0.1λ. One type is based on magneto-dielectric material, and the other is based on a novel structure design...

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INFONA - science communication portal

Search results for: Qianyun Zhang

Millifluidic Nanogenerator Lab‐on‐a‐Chip Device for Blood Electrical Conductivity Monitoring at Low Frequency

Multifunctional Nanogenerator‐Integrated Metamaterial Concrete Systems for Smart Civil Infrastructure

Patient‐Specific Self‐Powered Metamaterial Implants for Detecting Bone Healing Progress (Adv. Funct. Mater. 32/2022)

Patient‐Specific Self‐Powered Metamaterial Implants for Detecting Bone Healing Progress

Multifunctional Triboelectric Nanogenerator‐Enabled Structural Elements for Next Generation Civil Infrastructure Monitoring Systems

High‐performance natural rubber latex composites developed by a green approach using ionic liquid‐modified multiwalled carbon nanotubes

Dynamic Adaptive Video Streaming on Heterogeneous TVWS and Wi-Fi Networks

Inhibitory effects of compound DMBT on hypoxia-induced vasculogenic mimicry in human breast cancer

Compact low-profile UWB antenna with characteristic mode analysis for UHF TV white space devices

Design of very-low-profile circular UHF small antenna using characteristic mode analysis

UHF passive RFID‐based sensor‐less system to detect humidity for irrigation monitoring

Design of an UHF UWB doubled annular ring antenna using characteristic mode analysis

A reconfigurable multiband CPW-fed antenna based on a quad-mode slot-line resonator

Oct2 and Bob1 are sensitive and specific markers in lineage determination of B cell lymphomas with no expression of conventional B cell markers

Efficient implementation of maximization likelihood estimation to constrained measurement random latency probability in nonlinear system

Stacked Patch Antenna With Dual-Polarization and Low Mutual Coupling for Massive MIMO

TV White Space Network Provisioning with Directional and Omni-Directional Terminal Antennas

CPW-fed dual-/tri-band slot antenna based on multi-mode slot line resonator

Compact U-shape ultra-wideband antenna with characteristic mode analysis for TV white space communications

UHF antennas for Machine-to-Machine communications and Internet Of Things

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