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| 1 | Layered Birnessite Cathode with a Displacement/Intercalation Mechanism for High-Performance Aqueous Zinc-Ion Batteries显示文摘Mn-based rechargeable aqueous zinc-ion batteries(ZIBs)are highly promising because of their high operating voltages,attractive energy densities,and eco-friendliness.However,the electrochemical performances of Mn-based cathodes usually suffer from their serious structure transformation upon charge/discharge cycling.Herein,we report a layered sodium-ion/crystal water co-intercalated Birnessite cathode with the formula of Na0.55Mn2O4·0.57H2O(NMOH)for high-performance aqueous ZIBs.A displacement/intercalation electrochemical mechanism was confirmed in the Mn-based cathode for the first time.Na+and crystal water enlarge the interlayer distance to enhance the insertion of Zn^2+,and some sodium ions are replaced with Zn^2+ in the first cycle to further stabilize the layered structure for subsequent reversible Zn^2+/H^+ insertion/extraction,resulting in exceptional specific capacities and satisfactory structural stabilities.Additionally,a pseudo-capacitance derived from the surface-adsorbed Na^+ also contributes to the electrochemical performances.The NMOH cathode not only delivers high reversible capacities of 389.8 and 87.1 mA h g^−1 at current densities of 200 and 1500 mA g^−1,respectively,but also maintains a good long-cycling performance of 201.6 mA h g^−1 at a high current density of 500 mA g^−1 after 400 cycles,which makes the NMOH cathode competitive for practical applications. | Xian‑Zhi Zhai Jin Qu Shu‑Meng Hao Ya‑Qiong Jing Wei Chang Juan Wang Wei Li Yasmine Abdelkrim Hongfu Yuan Zhong‑Zhen Yu | 2020 | Nano-Micro Letters2020，12，4： | 4 |
| 2 | Evolution of drainage systems and its developing trend in connection with tectonic uplift of Eastern Kunlun Mt.显示文摘The Eastern Kunlun Mt. had been subjected to uplift together with the Qinghai-Xizang (Tibet) Plateau before the Early Pleistocene, and yet the Mt. did not protrude out of the Plateau surface. During that period lakes spread all over the studied region, with the drainage systems being all short rivers flowing into the lakes. At the end of the Early Pleistocene, intensive tectonic uplift led to the rising of the Eastern Kunlun Mt. and made the Mt. protrude onto the Plateau surface. As a result, a fault depression valley formed extending nearly from west to east along the fault belt of the Southern Kunlun Mt. Lakes in this region died out, surface runoffs joined into the valley of the Southern Kunlun Mt. resulting in a large river streaming nearly from west to east. Around 150 kaBP, because of the strong differential movement, rivers, such as the Jialu River and the Golmud River, retrogressively eroded seriously, cutting through the Burhan Budai Mt. Then they pirated the large river and divided it into | LI Chang’an YIN Hongfu YU Qingwen | 2000 | Chinese Science Bulletin2000，45，20： | 4 |
| 3 | Optical frequency divider with division uncertainty at the 10^(-21) level显示文摘Optical clocks with unprecedented accuracy of 10^(-18) promise innovations in many research areas.heir applications rely to a large extent on the ability of precisely converting the frequency from one optical clock to another,or particularly to the frequencies in the iber telecom band for long-distance transmission.his report demonstrates a low-noise,high-precision optical frequency divider,which realizes accurate optical frequency conversion and enables precise measurement of optical frequency ratios.By measuring against the frequency ratio between the fundamental and the second harmonic of a 1064-nm laser instead of a second copy of the same system,we demonstrate that the optical frequency divider has a fractional frequency division instability of 6×10^(-19) at 1 s and a fractional frequency division uncertainty of 1.4×10^(-21).he remarkable numbers can support frequency division of the best optical clocks in the world without frequency-conversion-caused degradation of their performance. | Yuan Yao Yanyi Jiang Hongfu Yu Zhiyi Bi Longsheng Ma | 2016 | National Science Review2016，3，4： | 3 |
| 4 | Expression of 6 MicroRNAs in Prostate Cancer and Its Significance显示文摘OBJECTIVE Numerous microRNAs (miRNAs) are deregulatedin human cancers. The experimental evidence supports thatmiRNAs plays a role in the initiation and progression of humanmalignancies.The present study was undertaken to evaluatethe differential expression of 6 miRNAs as biomarker for earlydetection of prostate cancer, and then to determine whether theexpression profiling of these miRNAs could predict the prognosisof prostate cancer.METHODS The expression profilings of these 6 miRNAs wereinvestigated using the method of locked nucleic acid (LNA)-modified oligonucleotide in situ hybridization (ISH). And thetechnology of tissue microarray (TMA) was employed using theformalin-fixed, paraffin-embedd (FFPE) specimens taken from52 patients with prostate carcinoma (PCa) and 38 patients withbenign prostatic hyperplasia (BPH).RESULTS The rates of positive expression for 6 miRNAs (miR-15b, miR-16, let-7g, miR- 96,miR-182 and miR-183) were 26.92%,15.38%, 15.38%, 67.31%, 61.54% and 71.15% in the specimens ofprostate cancer, and 57.89%, 76.32%, 68.42%, 44.74%, 31.58%,47.37% in the tissues of benign prostatic hyperplasia, respectively.The expressions of all 6 miRNAs between the prostate cancer andbenign prostatic hyperplasia tissues were significantly different(P < 0.05). The positive rate of these 6 miRNAs was significantlyrelated to the Gleason Grading of prostate cancer (P < 0.01). Therewas no significant correlation between the expression of thesemiRNAs and age and the concentration of serum PSA of thepatient (P >0.05). We also found that the expression of miR-15b,miR-96 and miR-182 correlated with clinical stages of tumor (P <0.05). The expression of miR-96 correlated with lobus prostatae oftumor invasion (P < 0.01), but the expressions of the remaining fivemiRNAs were not correlated with that (P >0.05). In addition, theexpression of miR-15b was negatively related to that of miR-96,miR-182 and miR-183, respectively (P < 0.01, r < 0.00).There wasa positive correlation among the expressions of miR-96, miR-182and miR-183 in prostate cancer (P < 0.01, r >0.00). The expressionof miR-16 was positively related to that of miR-let-7g (P < 0.01, r >0.00).CONCLUSION The results suggest that miRNA expressionprofiling could have relevance to the biological and clinicalbehavior of prostate cancer,and they might be importantbiomarkers for early detection and prognostic assessment ofprostate cancer. | Ming Li Liyu Cao Hongfu Zhang Yu Yin Xiaochun Xu | 2009 | Chinese Journal of Clinical Oncology2009，6，1： | 2 |
| 5 | Time Sequence Change-Point Model of Electrostatic State Parameters of Aircraft Engine显示文摘Electrostatic monitoring technology of particle charging information can facilitate online monitoring of aero-engine,which effectively enhances engine fault diagnosis and health managements.Unlike traditional engine state monitoring technologies,aircraft engine monitoring by gas path electrostatic monitoring not only covers the predicted information source itself,but also detects the information that can provide an early warnings for initial fault states through gas path charging levels.This paper establishes a non-stationary time sequence change-point model for anomaly recognition of electrostatic signals based on change-point theory combined with difference method of non-stationary time series.Finally,electrostatic induction data were utilized by the engine life test for a particular aircraft to validate the proposed algorithm.The results indicate that the activity level and the event rate were0.5—0.8(nc)and 50%,respectively,which were far greater than 4—12(pc)and 0—4% under normal working conditions of the engine. | Fu Yu Wei Dongdong Zuo Hongfu Feng Zhengxing | 2018 | Transactions of Nanjing University of Aeronautics and Astronautics2018，35，1： | 2 |
| 6 | Optical frequency synthesizer referenced to an ytterbium optical clock显示文摘Optical clocks with an unprecedented accuracy of 10-18 promise innovations in precision spectroscopy and measurement. To harness the full power of optical clocks, we need optical frequency synthesizers(OFSs) to accurately convert the stabilities and accuracies of optical clocks to other desired frequencies. This work demonstrates such an OFS referenced to an ytterbium optical clock. The OFS is based on an optical frequency comb phase-locked to a commercial rubidium microwave clock;in this way most combs can operate robustly. Despite comb frequency instability at 10^(-11), the synthesis noise and uncertainty reach 6 × 10^(-18)(1 s) and 5 × 10^(-21), respectively, facilitating frequency synthesis of the best optical clocks. In the OFS, the coherence of the OFS internal oscillator at 1064 nm is accurately transferred to a 578 nm laser for resolving the hertz-level-linewidth ytterbium clock transition(unaffected by megahertz-linewidth comb lines) and faithfully referencing the OFS to an ytterbium optical clock. | YUAN YAO BO LI GUANG YANG XIAOTONG CHEN YAQIN HAO HONGFU YU YANYI JIANG LONGSHENG MA | 2021 | Photonics Research2021，9，2： | 1 |
| 7 | Coherent link between a Ti:sapphire comb and a 1.5μm laser via nonlinear interaction in photonic crystal fiber显示文摘Optical clock networks have distinct advantages for the dissemination of time/frequency,geodesy,and fundamental research.To realize such a network,the telecom band and optical atomic clocks have to be coherently bridged.Since the telecom band and optical atomic clocks reside in a distinct spectral region,second-harmonic generation is usually introduced to bridge the large frequency gap.In this paper,we introduce a new method to coherently link a 1550 nm continuous wave laser with a Ti:sapphire mode-locked laser-based optical frequency comb.By coupling the 1550 nm continuous wave laser light and the Ti:sapphire comb light together into a photonic crystal fiber,nonlinear interaction takes place,and new comblike frequency components related to the 1550 nm laser frequency are generated in the visible region.Consequently,we can detect beat notes between two combs in the visible region with a signal-to-noise ratio of more than 40 dB in a resolution bandwidth of300 kHz.With this signal,we realize an optical frequency divider for converting the frequency of optical clocks in the visible region to the telecom band at 1.55μm.An out-of-loop measurement shows that the additional noise and uncertainty induced in optical frequency conversion are 5×10^(-18)at 1 s averaging time and 2.2×10^(-19),respectively,which are limited by the uncompensated light path fluctuation but fulfill precision measurement using state-of-the-art optical clocks. | YUAN YAO HAOSEN SHI GUANG YANG BO LI CONGYU WANG HONGFU YU LONGSHENG MA YANYI JIANG | 2024 | Photonics Research2024，12，2： | 0 |
| 8 | Research on the Measurement of Urban Sprawl with a Multi-Factor Indicator in the Context of Rapid Urbanization in China显示文摘This paper attempts to create a multi-factor urban sprawl indicator containing population, economy, land use, and infrastructure by using statistical data, and empirically measures the urban sprawl level of 69 cities in China between 2000 to 2014. It then analyzes the results from regional and periodic perspectives, and divides urban sprawl into four types as well as discusses their characteristics. The main conclusions are:(1) the multi-factor indicator is applicable to measure China’s current urban sprawl level;(2) urban sprawl of large and medium-sized cities is becoming serious, while this trend has been eased in recent years;(3) the urban sprawl level and trend of large and medium-sized cities obviously differ from each other in regional perspective;(4) different types of urban sprawl present different sprawl structural characteristics. | Wang Jiating Xie Yu Ma Hongfu Cai Siyuan Liu Jinxin(译) Liu Jiayan(校) | 2021 | China City Planning Review2021，30，3： | 0 |
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