Lu Cheng

Lu Cheng
Chinese Academy of Sciences | CAS · Institute of Geographic Sciences and Natural Resources

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31
Publications
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Introduction
Skills and Expertise

Publications

Publications (31)
Article
Full-text available
Increasing the triboelectric charge density on the friction layer of polydimethylsiloxane (PDMS) is a basic approach towards improving the output performance of a triboelectric nanogenerator (TENG). Most previous work focuses on the surface structure or dielectric properties, nonetheless, a few studies have focused on electronegative modification....
Article
Based on β-NiMoO4 nanowire (NW) arrays grown on carbon cloth as the electrode materials, a 3D solid asymmetrical supercapacitor has been fabricated. The produced β-NiMoO4 NW arrays on carbon cloth compared to the power of NiMoO4 nanowires deposited directively on carbon cloth can increase the efficiency of nanomaterials participating in reactions....
Article
Based on mixed piezoelectric and ferroelectric nanostructures with polymers in various architectural forms, the flexible triboelectric nanogenerators (TENGs) have been extensively investigated. In this study, we design and fabricate lead-free ZnSnO3 nanocubes at polydimethylsiloxane (PDMS) based TENG by dispersing ZnSnO3 nanocubes into PDMS elastom...
Article
In this paper, a nanogenerator based on flexible polydimethylsiloxane (PDMS) film modified with semiconductor zinc-oxide (ZnO) nanotubes and conductive Ag nanowires is designed and fabricated. The modified PDMS film consists of the semiconductor ZnO nanotubes distributed on the dielectric PDMS film and the conductive Ag nanowires covered on the sur...
Article
As we known, nanogenerator (NG) can be used in many fields, such as sensors, energy harvesting, biomedical application, and so on. Sometimes, the object that is a part of NG cannot be electrically connected to the load because it is a mobile object. To harvest energy from such a case and reduce the fabrication cost and achieve some new applications...
Article
The hybrid supercapacitor based on a carbon-coated KCu7S4 electrode shows outstanding electrochemical performances with a large specific capacitance of 352 F/g at the scan rate of 10 mV/s, high energy density of 26.2 W h/kg, and high power density of 994.8 W/kg.
Article
Three C/KCu7S4 hybrid ECs units in series to light a light-emitting diode (LED) for 5.5 min, 10 light-emitting diodes (LEDs) for 4 min, 50 light-emitting for 2.5 min. The hybrid ECs can deliver the largest specific capacitance of 469 m F cm−2 (∼300 F g−1) at the current of 2 mA, the highest energy density of 8.14 mWh cm−3 and the maximum power dens...
Article
Based on the framework structure of KCu7S4 and better conductivity of C, we design a novel C@KCu7S4 hybrid supercapacitor based on the carbon (C) particles coated on the KCu7S4 electrode. The C@KCu7S4 hybrid supercapacitor with 2 mg C shows a large specific capacitance of 352 F g-1 at a scan rate of 10 mV s-1, the highest energy density of 26.2 Wh...
Article
The Middle East-Minor 1 cryptic species (MEAM1), Bemisia tabaci (Gennadius) is a globally invasive pest. It spreads widely due to its high fecundity and mutualistic interactions with the virus they vector. Feeding on virus (tomato yellow leaf curl China virus, TYLCCNV)-infected host plants improves their fecundity, however, the key factor regulatin...
Article
We report a novel pseudocapacitor based on KCu7S4 nanowires. To improve the electrochemical performance of the KCu7S4 capacitor, we changed the structure of the KCu7S4 nanowire electrode by coating Mn particles (Mn/KCu7S4). The preferable capacitance is shown by the Mn/KCu7S4 hybrid capacitor, which displays large specific capacitance (1620 F g−1)...
Article
Full-text available
The MEAM1 (B biotype) Bemisia tabaci (Gennadius) is one of the most widespread and damaging whitefly cryptic species. Our previous studies discovered that the MEAM1 whitefly indirectly benefits from interactions with the tomato yellow leaf curl China virus (TYLCCNV) via accelerated ovarian development and increased fecundity. However, the physiolog...
Data
Immune reaction of Vt antibody with yolk protein of MED and ASIA II3 whiteflies. SDS–PAGE analysis with Coomassie brilliant blue staining (left) and corresponding Western blotting analysis (right) with the monoclonal antibody against B. tabaci Vt for soluble proteins sampled from MEAM1, MED and ASIA II3 whiteflies. PM: prestained molecular mass mar...
Data
Nucleotide and deduced amino acid sequence of the vitellogenin cDNA of MEAM1 whitefly, Bemisia tabaci. “” signal peptide, “” functional motif, “” polyserines, “” unknown motif. (DOC)
Data
Characterization of MEAM1 whitefly Vt. Native-PAGE (linear gradient consisting of 4–25% polyacrylamide) analysis with Coomassie brilliant blue staining (left) and the characterization of yolk soluble protein (right), Vt bands were visualized by staining with Coomassie brilliant blue (C), Sudan Black B (L), Periodic acid-Schiff’s reagent (P) and Met...
Data
Purification of monoclonal antibody against MEAM1 whitefly Vt. SDS–PAGE of the purified monoclonal antibody IgG against B. tabaci Vt with Coomassie brilliant blue staining. PM: Molecular weight standards; A: purified IgG; B: crude ascites fluid; H and L: IgG heavy and light chain. (DOC)
Data
Distribution of Vg/Vt in different tissues of MEAM1 whitefly. SDS – PAGE analysis with Coomassie brilliant blue staining (left) and corresponding Western blotting analysis (right) with the monoclonal antibody against B. tabaci Vt for soluble proteins sampled from different tissues of the female and male. PM: prestained molecular mass markers (Bio-R...
Data
Phylogenetic tree of Vg in MEAM1 Bemisia tabaci and other insects of their predicted amino acid sequences using the neighbor-joining method. (DOC)
Data
Details of methods, sequences of vitellogenin cDNA. (DOC)
Article
Full-text available
Cloud computing is by far the most cost-effective technology for hosting Internet-scale services and applications. The MapReduce model, in particular, is largely used nowadays in Cloud infrastructures to meet the demand of large-scale data and computation intensive applications. Despite its success, the implications of MapReduce on the management o...
Conference Paper
Full-text available
Due to the efficiency and adaptability, the active probing technique has become an attractive tool for fault localization in large and complex computer networks. It performs diagnosis by appropriately selecting the probes and analyzing the results. However, selecting an optimal probe set in such environment has been proven to be NP-hard problem. An...
Conference Paper
Full-text available
Modern production clusters are often shared by multiple types of jobs with different priorities in order to improve resource utilization. Preemption is a common technique employed by MapReduce schedulers to avoid delaying production jobs while allowing the cluster to be shared by other non-production jobs. In addition, it also prevents a large job...
Conference Paper
Real-time problem diagnosis in large distributed system and network is a challenging task which requires effective and accurate inference and localization. In this paper, we use active probing to present an approach to develop tools for performing fault diagnosis. Active probing method is an active network monitoring technique that based on end-to-...
Article
Full-text available
Cloud computing has recently emerged as a new paradigm for hosting and delivering services over the Internet. Cloud computing is attractive to business owners as it eliminates the requirement for users to plan ahead for provisioning, and allows enterprises to start from the small and increase resources only when there is a rise in service demand. H...
Conference Paper
Full-text available
Active probing is an effective tool for monitoring networks. By measuring probing responses, we can perform fault diagnosis actively and efficiently without instrumentation on managed entities. In order to reduce the traffic generated by probing messages and the measurement infrastructure costs, an optimal set of probes is desirable. However, the c...
Conference Paper
In order to improve the quality of Internet service, it is important to quickly and accurately diagnose the root fault from the observed symptoms and knowledge. Because of the dynamical changes in service system which are caused by many factors such as dynamic routing and link congestion, the dependence between the observed symptoms and the root fa...
Conference Paper
It is critical to obtain accurate network information for network management and the improvement of network service quality. Network measurement is an efficient method to obtain such information. Now the network measurement models and algorithms have become a research hot spot; and the core problem is how to cut down the cost of device deployment a...
Conference Paper
The modern society has come to rely heavily on IT services. To improve the quality of IT services it is important to quickly and accurately detect and diagnose their faults which are usually detected as disruption of a set of dependent logical services affected by the failed IT resources. The task, depending on observed symptoms and knowledge about...
Conference Paper
To ensure the QoS in Internet services, it is critical to detect the failures quickly and accurately. However, it is a difficult problem because one must extract and interpret fail patterns from large amounts of high-dimensional data. Presently, most technologies do not fit for large-scale system because of the complexity. Moreover, the detecting a...
Conference Paper
To improve the quality of IP service, it is important to quickly and accurately diagnosis the root fault from the observed symptoms and knowledge. The approximate inference based on Bayesian networks is the most popular fault diagnosis technology in recent years. Presently, fault localization based on Bayesian networks is only according to the curr...
Conference Paper
For fault Diagnosis in internet service, the detection and localization of high-level failure is very important and a real big challenge. The diagnose methods that passively collect information have two drawbacks: 1) requiring the target system to report its inner message; 2) it’s impossible to detect and locate faults before user senses them. This...

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