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| 1 | New normalized LMS adaptive filter with a variable regularization factor显示文摘A new normalized least mean square(NLMS) adaptive filter is first derived from a cost function, which incorporates the conventional one of the NLMS with a minimum-disturbance(MD)constraint. A variable regularization factor(RF) is then employed to control the contribution made by the MD constraint in the cost function. Analysis results show that the RF can be taken as a combination of the step size and regularization parameter in the conventional NLMS. This implies that these parameters can be jointly controlled by simply tuning the RF as the proposed algorithm does. It also demonstrates that the RF can accelerate the convergence rate of the proposed algorithm and its optimal value can be obtained by minimizing the squared noise-free posteriori error. A method for automatically determining the value of the RF is also presented, which is free of any prior knowledge of the noise. While simulation results verify the analytical ones, it is also illustrated that the performance of the proposed algorithm is superior to the state-of-art ones in both the steady-state misalignment and the convergence rate. A novel algorithm is proposed to solve some problems. Simulation results show the effectiveness of the proposed algorithm. | LI Zhoufan LI Dan XU Xinlong ZHANG Jianqiu | 2019 | Journal of Systems Engineering and Electronics2019，30，2： | 9 |
| 2 | Mechanism and kinetics study on removal of Iron from phosphoric acid by cation exchange resin显示文摘Iron element is one of the main impurities in wet-process phosphoric acid and it has a significant impact on the subsequent phosphorus chemical products. This paper studied the feasibility of using Sinco-430 cation exchange resin for iron removal from phosphoric acid. The specific surface area and the total exchange capacity of resin were 8.91 m2·g-1 and 5.18 mmol·g-1, respectively. The sorption mechanism was determined by FTIR and XPS and the results indicated that iron was combined with-SO3 H in resin. The removal process was studied as a function of temperature, H3 PO4 content and mass ratio between resin and solution. The unit mass of resin to remove iron was 0.058 g·g-1 resin when the operating parameters were T = 50 ℃, H3 PO4 content = 27.61 wt%and S/L = 0.1, respectively. Kinetics study demonstrated that pseudo-second-order reaction model fits this study best and the calculated activation energy of overall reaction is 29.10 kJ·mol-1. The overall reaction process was mainly controlled by pore diffusion. | Xinke Leng Yanjun Zhong Dehua Xu Xinlong Wang Lin Yang | 2019 | Chinese Journal of Chemical Engineering2019，27，5： | 7 |
| 3 | Multistage analysis method for detection of effective herb prescription from clinical data显示文摘为特定的疾病条件或特别的耐心的组决定有效繁体中文药(TCM ) 治疗是因为复杂个性化的表明,在真实世界的病人和在临床的背景规定的个性化的联合治疗要求调查的一个困难的问题。在这研究,集成倾向大小写匹配的一个多级式的分析方法,复杂网络分析,和植物给了丰富分析被建议为特别疾病识别有效植物药方(例如,失眠) 。首先,匹配的倾向大小写被使用匹配临床的盒子。然后,核心网络抽取和植物集合丰富被联合检测核心有效植物药方。基于有效性的相互的信息被用来检测强壮的 herbsymptom 关系。这个方法在一个 TCM 临床的数据集合上被使用, 955 个病人从设计得好的观察研究收集了。结果与更高的有效性率揭示了那组植物药方(76.9% 对 42.8% 为匹配的样品;94.2% 对 84.9% 为所有样品) 与原版相比,药方被发现。有症状表明的特别的耐心的组也被识别帮助调查有效植物药方的指示。 | Kuo Yang Runshun Zhang Liyun He Yubing Li Wenwen Liu Changhe Yu Yanhong Zhang Xinlong Li Yan Liu Weiming Xu Xuezhong Zhou Baoyan Liu | 2018 | Frontiers of Medicine2018，12，2： | 5 |
| 4 | Broadband terahertz wave generation from an epsilon-near-zero material显示文摘Broadband light sources emitting in the terahertz spectral range are highly desired for applications such as noninvasive imaging and spectroscopy.Conventionally,THz pulses are generated by optical rectification in bulk nonlinear crystals with millimetre thickness,with the bandwidth limited by the phase-matching condition.Here we demonstrate broadband THz emission via surface optical rectification from a simple,commercially available 19nmthick indium tin oxide(ITO)thin film.We show an enhancement of the generated THz signal when the pump laser is tuned around the epsilon-near-zero(ENZ)region of ITO due to the pump laser field enhancement associated with the ENZ effect.The bandwidth of the THz signal generated from the ITO film can be over 3 THz,unrestricted by the phasematching condition.This work offers a new possibility for broadband THz generation in a subwavelength thin film made of an ENZ material,with emerging physics not found in existing nonlinear crystals. | Wenhe Jia Meng Liu Yongchang Lu Xi Feng Qingwei Wang Xueqian Zhang Yibo Ni Futai Hu Mali Gong Xinlong Xu Yuanyuan Huang Weili Zhang Yuanmu Yang Jiaguang Han | 2021 | Light(Science & Applications)2021，10，1： | 4 |
| 5 | Relationship Between Soil and Water Conservation Practices and Soil Conditions in Low Mountain and Hilly Region of Northeast China显示文摘The soil and water conservation practices of ecological restoration(ER),fish scale pit(FP),furrow and ridge tillage across the slope(FR),shrub strips(SS),and vegetation-covered ridge(VR)are characteristic of the Jixing small watershed of the low mountain and hilly region of Jilin Province,Northeast China.This study aims to elucidate the effects of soil and water conservation practices on soil conditions after the short-term implementation of practices.Soil samples were collected from five soil and water conservation sites(ER,FP,FR,SS,and VR)and two controls(BL and CT)to investigate their properties.To evaluate the influence of soil and water conservation practices on soil quality,an integrated quantitative index,soil quality index(QI),was developed to compare the soil quality under the different soil and water conservation practices.The results show that not all soil and water conservation practices can improve the soil conditions and not all soil properties,especially soil organic carbon(SOC),can be recovered under soil and water conservation practice in short-term.Moreover,the QI in the five soil and water conservation practices and two controls was in the following order:ER>VR>BL>FR>CT>SS>FP.ER exhibited a higher soil quality value on a slope scale.In the low mountain and hilly region of Northeast China,ER is a better choice than the conversion of farmlands to planted grasslands and woodlands early in the soil and water conservation program. | ZHANG Yubin CAO Ning XU Xiaohong ZHANG Feng YAN Fei ZHANG Xinsheng TANG Xinlong | 2014 | Chinese Geographical Science2014，24，2： | 4 |
| 6 | Saturable and reverse saturable absorption in molybdenum disulfide dispersion and film by defect engineering显示文摘Understanding and controlling defect in two-dimensional materials is important for both linear and nonlinear optoelectronic devices,especially in terms of tuning nonlinear optical absorption.Taking advantage of an atomic defect formed easily by smaller size,molybdenum disulfide nanosheet is prepared successfully with a different size by gradient centrifugation.Interestingly,size-dependent sulfur vacancies are observed by high-resolution X-ray photoelectron spectroscopy,atomic force microscopy,and transmission electron microscopy.The defect effect on nonlinear absorption is investigated by Z-scan measurement at the wavelength of 800 nm.The results suggest the transition from saturable absorption to reverse saturable absorption can be observed in both dispersions and films.First principle calculations suggest that sulfur vacancies act as the trap state to capture the excited electrons.Moreover,an energy-level model with the trap state is put forward to explain the role of the sulfur vacancy defect in nonlinear optical absorption.The results suggest that saturable absorption and reverse saturable absorption originate from the competition between the excited,defect state and ground state absorption.Our finding provides a way to tune the nonlinear optical performance of optoelectronic devices by defect engineering. | CHUNHUI LU HONGWEN XUAN YIXUAN ZHOU XINLONG XU QIYI ZHAO AND JINTAO BAI | 2020 | Photonics Research2020，8，9： | 3 |
| 7 | The development road of ammonium phosphate fertilizer in China显示文摘Ammonium phosphate fertilizer is the compounds containing nitrogen and phosphorus that are usually produced through the neutralization reaction of phosphoric acid and ammonia.At present,there are a variety of products,such as slurry monoammonium phosphate(MAP),diammonium phosphate(DAP),industrial grade MAP,water soluble MAP,water soluble ammonium polyphosphate(APP)and so on.After more than 60 years of development,China’s ammonium phosphate fertilizer industry has experienced the road of from scratch and from weak to strong.The successful development of the slurry MAP technology ended the history that the high concentration phosphate fertilizer cannot be produced by using the medium and low grade phosphate ore.The continuous,stable and large-scale production of DAP plant provides sufficient guarantee for DAP products in China.The development of new ammonium phosphate fertilizer products,such as industrial grade MAP,water soluble MAP,water soluble APP,provides technical support for the transformation and upgrading of phosphorus chemical enterprises.In this paper,the production methods,the development history and the latest research progress of ammonium phosphate fertilizers were reviewed. | Dehua Xu Benhe Zhong Xinlong Wang Xue Li Yanjun Zhong Zhengjuan Yan Jingxu Yang Xiaobin Li Yumei Wang Xiaohou Zhou | 2022 | Chinese Journal of Chemical Engineering2022，35，1： | 3 |
| 8 | Solid phase microwave-assisted fabrication of Fe-doped ZIF-8 for single-atom Fe-N-C electrocatalysts on oxygen reduction显示文摘Fe-N-C endowed with inexpensiveness,high activity,and excellent anti-poisoning power have emerged as promising candidate catalysts for oxygen reduction reaction(ORR).Single-atom Fe-N-C electrocatalysts derived from Fe-doped ZIF-8 represent the top-level ORR performance.However,the current fabrication of Fe-doped ZIF-8 relies on heavy consumption of time,energy,cost and organic solvents.Herein,we develop a rapid and solvent-free method to produce Fe-doped ZIF-8 under microwave irradiation,which can be easily amplified in combination with ball-milling.After rational pyrolysis,Fe-N-C catalysts with atomic FeN4 sites well dispersed on the hierarchically porous carbon matrix are obtained,which exhibit exceptional ORR performance with a half-wave potential of 0.782 V(vs.reversible hydrogen electrode(RHE))and brilliant methanol tolerance.The assembled direct methanol fuel cells(DMFCs)endow a peak power density of 61 mW cm^(-2) and extraordinary stability,highlighting the application perspective of this strategy. | Xinlong Xu Xiaoming Zhang Zhangxun Xia Ruili Sun Huanqiao Li Junhu Wang Shansheng Yu Suli Wang Gongquan Sun | 2021 | Journal of Energy Chemistry2021，30，3： | 2 |
| 9 | Boosting of reversible capacity delivered at a low voltage below 0.5 V in mildly expanded graphitized needle coke anode for a high-energy lithium ion battery显示文摘The rate performance and cycle stability of graphitized needle coke(GNC)as anode are still limited by the sluggish kinetics and volume expansion during the Li ions intercalation and de-intercalation process.Especially,the output of energy density for lithium ion batteries(LIBs)is directly affected by the delithiation capacity below 0.5 V.Here,the mildly expanded graphitized needle coke(MEGNC)with the enlarged interlayer spacing from 0.346 to 0.352 nm is obtained by the two-step mild oxidation intercalation modification.The voltage plateau of MEGNC anode below 0.5 V is obviously broadened as compared to the initial GNC anode,contributing to the enhancement of Li storage below the low voltage plateau.Moreover,the coin full cell and pouch full cell configured with MEGNC anode exhibit much enhanced Li storage ability,energy density and better cycling stability than those full cells configured with GNC and commercial graphite anodes,demonstrating the practical application value of MEGNC.The superior anode behaviors of MEGNC including the increased effective capacity at low voltage and superior cyclic stability are mainly benefited from the enlarged interlayer spacing,which not only accelerates the Li ions diffusion rate,but also effectively alleviates the volume expansion and fragmentation during the Li ions intercalation process.In addition,the above result is further confirmed by the density functional theory simulation.This work provides an effective modification strategy for the NC-based graphite to enhance the delithiation capacity at a low voltage plateau,dedicated to improving the energy density and durability of LIBs. | Dong Sun Lu Zhao Zhihua Xiao Kai Zhao Rundan Lin Hongmei Song Xilu Zhang Xinlong Ma Chong Peng Xiaoqiao Huang Xingxun Li Jinsen Gao Chunming Xu | 2022 | Journal of Energy Chemistry2022，31，11： | 2 |
| 10 | Highly emissive coordination polymer derived from tetraphenylethylene-tetrazole chromophore:Synthesis,characterization and piezochromic luminescent behavior显示文摘Solid-state materials that exhibit pressure stimulus-response characteristics in a manner of emission signal,known as piezochromic luminescence(PCL),demonstrate great potential in photoelectric devices.The weakened luminescence and insignificant color change in the aggregation state,however,hampers their practical applications.Herein,a highly emissive coordination polymer,[Zn2(H4TTPE)(H2O)4]·H2O(CUST-805),is successfully constructed by employing an AIE-active chromophore as the building block.The structural characterization and photophysical properties are systematically studied.Owing to intrinsic twisted conformation and AIE feature of tetraphenylethylene-tetrazole ligand,CUST-805 achieves the visible and reversible PCL from blue to green switched by different external stimuli.The transformation between crystalline and amorphous states is proved to be the origin of present PCL behavior.Moreover,on basis of electron and energy transfer quenching mechanism,the highly selective and sensitive sensor based on CUST-805 is realized,showing the low detection limit of 0.29 ppm towards 2,4,6-trinitrophenol. | Xu Han Jialin Tong Guanyu Ding Chunyi Sun Xinlong Wang Zhongmin Su Jing Sun Li-Li Wen Guo-Gang Shan | 2023 | Chinese Chemical Letters2023，34，1： | 2 |
| 11 | Third-order nonlinear optical properties of WTe2 films synthesized by pulsed laser deposition显示文摘The prominent third-order nonlinear optical properties of WTe2 films are studied through the Z-scan technique using a femtosecond pulsed laser at 1030 nm.Open-aperture(OA)and closed-aperture(CA)Z-scan measurements are performed at different intensities to investigate the nonlinear absorption and refraction properties of WTe2 films.OA Z-scan results show that WTe2 films always hold a saturable absorption characteristic without transition to reverse saturable absorption.Further,a large nonlinear absorption coefficientβis determined to be-3.37×10^3 cm∕GW by fitting the OA Z-scan curve at the peak intensity of 15.603 GW∕cm^2.In addition,through the slow saturation absorption model,the ground state absorption cross section,excited state absorption cross section,and absorber's density were found to be 1.4938×10^-16 cm^2,1.2536×10^-16 cm^2,and 6.2396×10^20 cm^-3,respectively.CA Z-scan results exhibit a classic peak–valley shape of the CA Z-scan signal,which reveals a self-defocusing optical effect of WTe2 films under the measured environment.Furthermore,a considerable nonlinear refractive index value n2 can be obtained at-1.629×10^-2 cm^2∕GW.Ultimately,the values of the real and imaginary parts of the third-order nonlinear susceptibility of WTe2 are roughly estimated to be-5.93×10^-9 and-1.01×10^-8 esu with the help of first-principles calculations.WTe2 possesses sizeable thirdorder nonlinear coefficients compared with other materials,which suggests that it has great potential to improve performance in nonlinear optical devices. | MI HE YEQUAN CHEN LIPENG ZHU HUAN WANG XUEFENG WANG XINLONG XU ZHANYU REN | 2019 | Photonics Research2019，7，12： | 1 |
| 12 | Deviation of optical constants extracted in terahertz transmission spec- troscopy 显示文摘 | Xu Xinlong Wang Xumin Wang Li | 2006 | Applied Optics2006，45，4： | 1 |
| 13 | A novel reduced α-Keggin type polyoxometalate coordinated to two and a half copper complex moieties: [Cu(2,2′-bipy) 2 ][PMo VI 8 Mo V 4 O 40 {Cu(2,2′-bipy)} 2.5 ]·H 2 O显示文摘 | Yunpeng Bai Yangguang Li Enbo Wang Xinlong Wang Ying Lu Lin Xu | 2005 | Journal of Molecular Structure2005，，1： | 1 |
| 14 | Headspace Solid-Phase Micro-Extraction Gas Chromatography/Mass Spectrometry(HS-SPME-GC/MS)-Based Untargeted Metabolomics Analysis for Comparing the Volatile Components from 12 Panax Herbal Medicines显示文摘Quality control of ginseng currently is mainly based on ginsenoside analysis,but rarely focuses on the volatile organic components.In the current work,an untargeted metabolomics approach,by headspace solid-phase micro-extraction gas chromatography/mass spectrometry(HS-SPME-GC/MS),was elaborated and further employed to holistically compare the compositional difference of the volatile components simultaneously from 12 Panax herbal medicines,which included P.ginseng(PG),P.quinquefolius(PQ),P.notoginseng(PN),red ginseng(PGR),P.ginseng leaf(PGL),P.quinquefolius leaf(PQL),P.notoginseng leaf(PNL),P.ginseng flower(PGF),P.quinquefolius flower(PQF),P.notoginseng flower(PNF),P.japonicus(PJ),and P.japonicus var.major(PJvm).Chromatographic separation was performed on an HP-5MS elastic quartz capillary column using helium as the carrier gas,enabling good resolution within 1 h.We were able to characterize totally 259 volatile compounds,including 82 terpenes(T),46 alcohols(Alc),29 ketones(K),25 aldehydes(Ald),21 esters(E),and the others.By analyzing 90 batches of ginseng samples based on the untargeted metabolomics workflows,236 differential ions were unveiled,and accordingly 36 differential volatile components were discovered.It is the first report that simultaneously compares the compositional difference of volatile components among 12 Panax herbal medicines,and useful information is provided for the quality control of ginseng aside from the well-known ginsenosides. | Simiao Wang Xiaohang Li Meiting Jiang Xinlong Wu Yuying Zhao Meiyu Liu Xiaoyan Xu Huimin Wang Hongda Wang Heshui Yu Wenzhi Yang | 2022 | Phyton-International Journal of Experimental Botany2022，91，7： | 1 |
| 15 | Comparative study on the influence of AI component at GaAIAs layer for GaAs/A1GaAs photocathode显示文摘We designed two transmission-mode GaAs/AlGaAs photocathodes with different Al_xGa_(1-x)As layers,one has an Al_xGa_(1-x) As layer with the Al component ranging from 0.9 to 0,and the other has a fixed Al component 0.7.Using the first-principle method,we calculated the electronic structure and absorption spectrum of Al_xGa_(1-x) As at x = 0,0.25,0.5,0.75 and 1,calculation results suggest that with the increase of the Al component,the band gap of Al_xGa_(1-x)As increases.Then we activated the two samples,and obtained the spectral response curves and quantum efficiency curves;it is found that sample 1 has a better shortwave response and higher quantum efficiency at short wavelengths.Combined with the band structure diagram of the transmission-mode GaAs/AlGaAs photocathode and the fitted performance parameters,we analyze the phenomenon.It is found that the transmission-mode GaAs/AlGaAs photocathode with variable Al component and various doping structure can form a two-stage built-in electric field,which improves the probability of shortwave response photoelectrons escaping to the vacuum.In conclusion,such a structure reduces the influence of back-interface recombination,improves the shortwave response of the transmission-mode photocathode. | Yuan Xu Benkang Chang Xinlong Chen Yunsheng Qian | 2017 | Journal of Semiconductors2017，38，8： | 1 |
| 16 | Acellular nerve xenografts based on supercritical extraction technology for repairing long-distance sciatic nerve defects in rats显示文摘Compared to conventional artificial nerve guide conduits (NGCs) prepared using natural polymers or synthetic polymers, acellular nerve grafts (ACNGs) derived from natural nerves with eliminated immune components have natural bionic advantages in composition and structure that polymer materials do not have. To further optimize the repair effect of ACNGs, in this study, we used a composite technology based on supercritical carbon dioxide (scCO_(2)) extraction to process the peripheral nerve of a large mammal, the Yorkshire pig, and obtained an innovative Acellular nerve xenografts (ANXs, namely, CD + scCO_(2) NG). After scCO_(2) extraction, the fat and DNA content in CD + scCO_(2) NG has been removed to the greatest extent, which can better supported cell adhesion and proliferation, inducing an extremely weak inflammatory response. Interestingly, the protein in the CD + scCO_(2) NG was primarily involved in signaling pathways related to axon guidance. Moreover, compared with the pure chemical decellularized nerve graft (CD NG), the DRG axons grew naturally on the CD + scCO_(2) NG membrane and extended long distances. In vivo studies further revealed that the regenerated nerve axons had basically crossed the CD + scCO_(2) NG 3 weeks after surgery. 12 weeks after surgery, CD + scCO_(2) NG was similar to autologous nerves in improving the quality of nerve regeneration, target muscle morphology and motor function recovery and was significantly better than hollow NGCs and CD NG. Therefore, we believe that the fully decellularized and fat-free porcine ACNGs may be the most promising “bridge” for repairing human nerve defects at this stage and for some time to come. | Shuai Wei Qian Hu Jianxiong Ma Xiu Dai Yu Sun Gonghai Han Haoye Meng Wenjing Xu Lei Zhang Xinlong Ma Jiang Peng Yu Wang | 2022 | Bioactive Materials2022，7，12： | 1 |
| 17 | A novel reduced α-Keggin type polyoxometalate coordinated to two and a half copper complex moieties: [Cu(2,2′-bipy) 2 ][PMo VI 8 Mo V 4 O 40 {Cu(2,2′-bipy)} 2.5 ]·H 2 O显示文摘 | Yunpeng Bai Yangguang Li Enbo Wang Xinlong Wang Ying Lu Lin Xu | 2005 | Journal of Molecular Structure2005，，1： | 1 |
| 18 | Hydrothermal synthesis and characterizations of a novel 2-D double-layers metal-organic coordination polymer involving in situ ligand synthesis显示文摘 | Fuchen Liu Liying Duan Yangguang Li Enbo Wang Xinlong Wang Changwen Hu Lin Xu | 2003 | Inorganica Chimica Acta2003，，5： | 1 |
| 19 | Reactive template-derived interfacial engineering of CoP/CoO heterostructured porous nanotubes towards superior electrocatalytic hydrogen evolution显示文摘The development of economical,efficient,and robust electrocatalysts toward the hydrogen evolution reaction(HER)is highly imperative for the rapid advancement of renewable H2 energy-associated technologies.Extensive utilization of the heterointerface effect can endow the catalysts with remarkably boosted electrocatalytic performance due to the modified electronic state of active sites.Herein,we demonstrate deliberate crafting of CoP/CoO heterojunction porous nanotubes(abbreviated as CoP/CoO PNTs hereafter)using a self-sacrificial template-engaged strategy.Precise control over the Kirkendall diffusion process of the presynthesized cobalt–aspartic acid complex nanowires is indispensable for the formation of CoP/CoO heterostructures.The topochemical transformation strategy of the reactive templates enables uniform and maximized construction of CoP/CoO heterojunctions throughout all the porous nanotubes.The establishment of CoP/CoO heterojunctions could considerably modify the electronic configuration of the active sites and also improve the electric conductivity,which endows the resultant CoP/CoO PNTs with enhanced intrinsic activity.Simultaneously,the hollow and porous nanotube architectures allow sufficient accessibility of exterior/interior surfaces and molecular permeability,drastically promoting the reaction kinetics.Consequently,when used as HER electrocatalysts,the well-designed CoP/CoO PNTs show Pt-like activity,with an overpotential of only 61 mV at 10mA cm^(−2) and excellent stability in 1.0M KOH medium,exceeding those of the vast majority of the previously reported nonprecious candidates.Density functional theory calculations further substantiate that the construction of CoP/CoO heterojunctions enables optimization of the Gibbs free energies for water adsorption and H adsorption,resulting in boosted HER intrinsic activity.The present study may provide in-depth insights into the fundamental mechanisms of heterojunction-induced electronic regulation,which may pave the way for the rational design of advanced Earth-abundant electrocatalysts in the future. | Qixing Zhou Ruoxu Sun Yiping Ren Run Tian Jun Yang Huan Pang Kai Huang Xinlong Tian Lin Xu Yawen Tang | 2023 | Carbon Energy2023，5，1： | 1 |
| 20 | Tuna- ble magnetoplasmons for efficient terahertz modulator and isolator by gated monolayer graphene 显示文摘 | Zhou Yixuan Xu Xinlong Fan Haiming | 2013 | Physical Chemistry Chemical Physics2013，15，14： | 1 |
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