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| 1 | The Research on 220GHz Multicarrier High-Speed Communication System显示文摘This paper presents our investigation into a 220 GHz multicarrier highspeed communication system based on solid state transceivers.The proposed system has eased the demand of high sampling rate analog-to-digital converter(ADC)by providing several signal carriers in microwave band and converting them to 220 GHz channel.The system consists of a set of 220 GHz solid-state transceiver with 2 signal carriers,two basebands for 4 GSPS ADCs.It has achieved 12.8 Gbps rate real-time signal transmission using 16QAM modulation over a distance of 20 m without any other auxiliary equipment or test instruments.The baseband algorithm overcomes the problem of frequency difference generates by non-coherent structure,which guarantees the feasibility of long-distance transmission application.Most importantly,the proposed system has already carried out multi-channel 8K video parallel transmission through switch equipment,which shows the multicarrier high-speed communication system in submillimeter wave has great application prospects.To the best of the authors’knowledge,this is the first all-solid-state electronics multicarrier communication system in submillimeter and terahertz band. | Zhongqian Niu Bo Zhang Jiale Wang Ke Liu Zhi Chen Ke Yang Zhen Zhou Yong Fan Yaohui Zhang Dongfeng Ji Yinian Feng Yang Liu | 2020 | China Communications2020，17，3： | 5 |
| 2 | MARTENSITE TRANSFORMATION OF A TiNiCu ALLOY显示文摘MARTENSITETRANSFORMATIONOFATiNiCuALLOY￥Zhang,Yi;Jin,Jialing;Ji,Zhiqiang(ShanghaiIronandSteelResearchInstitute,Shanghai200940)... | Zhang, Yi Jin, Jialing Ji, Zhiqiang (Shanghai Iron and Steel Research Institute, Shanghai 200940) | 1995 | 中国有色金属学会会刊:英文版1995，5，2： | 2 |
| 3 | Genetic Research and Utilization Reference of Saccharum spontaneum L.显示文摘[Objectives]The genetic characteristics of wild germplasm resources of Saccharum spontaneum L.were further investigated to provide a scientific theoretical basis for the improved hybridization of sugarcane varieties.[Methods]The first flowering date data of 112 wild resources were statistically analyzed by broad heritability for 3 consecutive years,and pollen quantity and yield were investigated to provide reference for hybridization.[Results]The broad heritability of the first flowering date of S.spontaneum was 0.079.The differences in the first flowering date between the S.spontaneum resources were in the range of 4-49 d,with an average of 13.65 d.The inter-annual changes within 20 d accounted for 90 %,and only 4.5% exceeded 30 d.The first flowering dates of some S.spontaneum resources were obviously postponed after being treated.[Conclusions]In the hybridization season,the hybridization plan must be adjusted according to the actual situation of the flowering period to make full use of it. | Jiale JI Qinnan WANG Yongsheng QIU Cheng FU Qiwei WU Houxiang HU Feng ZHOU Chuiming ZHANG Huanying XU Jing XIE | 2019 | Agricultural Biotechnology2019，8，3： | 1 |
| 4 | Microbial characteristics in anaerobic membrane bioreactor treating domestic sewage:Effects of HRT and process performance显示文摘Two anaerobic membrane bioreactors(AnMBRs)equipped with different membrane pore size(0.4 or 0.05μm)were operated at 25℃and fed with domestic wastewater.The hydraulic retention time(HRT)of the reactors was shortened.The microbial communities of the two AnMBRs were investigated by 16S rRNA gene amplicon sequencing to see the effects of HRT.The predominant Archaea was an aceticlastic methanogen Methanosaeta.The composition of hydrogenotrophic methanogens changed with the HRTs:the population of Methanobacterium was higher for longer HRTs,whereas the population of unclassified Methanoregulaceae was higher for shorter HRTs.The Anaerolineae,Bacteroidia and Clostridia bacteria were dominant in both of the reactors,with a combined relative abundance of over 55%.The relative abundance of Anaerolineae was proportional to the biogas production performance.The change in the population of hydrogenotrophic methanogens or Anaerolineae can be used as an indicator for process monitoring.The sum of the relative abundance of Anaerolineae and Clostridia fluctuated slightly with changes in the HRT in both AnMBRs when the reactor was stably operated.The co-occurrence analysis revealed the relative abundance of the operational taxonomic units belonging to Anaerolineae and Clostridia was functionally equivalent during the treatment of real domestic sewage.A principal coordination analysis revealed that the changes in the microbial community in each reactor were consistent with the change of HRT.In addition,both the HRT and the stability of the process are important factors for maintaining microbial community structures. | Jialing Ni Jiayuan Ji Yu-You Li Kengo Kubota | 2022 | Journal of Environmental Sciences2022，34，1： | 1 |
| 5 | Shen Qi Wan attenuates renal interstitial fibrosis through upregulating AQP1显示文摘Renal interstitial fibrosis(RIF)is the crucial pathway in chronic kidney disease(CKD)leading to the end-stage renal failure.However,the underlying mechanism of Shen Qi Wan(SQW)on RIF is not fully understood.In the current study,we investigated the role of Aquaporin 1(AQP1)in SQW on tubular epithelial-to-mesenchymal transition(EMT).A RIF mouse model induced by adenine and a TGF-β1-stimulated HK-2 cell model were etablished to explore the involvement of AQP 1 in the protective effect of SQW on EMT in vitro and in vivo.Subsequently,the molecular mechanism of SQW on EMT was explored in HK-2 cells with AQP1 knockdown.The results indicated that SQW alleviated kidney injury and renal collagen deposition in the kidneys of mice induced by adenine,increased the protein expression of E-cadherin and AQP1 expression,and decreased the expression of vimentin andα-smooth muscle actin(α-SMA).Similarly,treatmement with SQW-containing serum significantly halted EMT process in TGF-β1 stimulated HK-2 cells.The expression of snail and slug was significantly upregulated in HK-2 cells after knockdown of AQP1.AQP1 knockdown also increased the mRNA expression of vimentin andα-SMA,and decreased the expression of E-cadherin.The protein expression of vimentin increased,while the expression of E-cadherin and CK-18 significantly decreased after AQP1 knockdown in HK-2 cells.These results revealed that AQP1 knockdown promoted EMT.Furthermore,AQP1 knockdown abolished the protective effect of SQW-containing serum on EMT in HK-2 cells.In sum,SQW attentuates EMT process in RIF through upregulation of the expression of AQP1. | LIN Yiyou WEI Jiale ZHANG Yehui HUANG Junhao WANG Sichen LUO Qihan YU Hongxia JI Liting ZHOU Xiaojie LI Changyu | 2023 | Chinese Journal of Natural Medicines2023，21，5： | 1 |
| 6 | Selective control of secondary alcohols upgrading using Ir-catalyzed cross-coupling strategy显示文摘The selective coupling of alcohols is a fascinating yet challenging approach for upgrading alcohols. Herein, we accomplished the controlled production of β-disubstituted ketones or upgraded secondary alcohols via the Ir-catalyzed cross-coupling of secondary alcohols in excellent yields with broad substrate scopes. This selective control was achieved by using an in-situ generated monoNHC-Ir or a tris-NHC-Ir complex as the catalysts, respectively. Mechanistic studies revealed that the delicate balance between dehydrogenation and hydrogenation abilities of these bifunctional catalysts is crucial for achieving different selectivity. The tris-NHC-Ir complex effectively facilitated dehydrogenation of alcohols and hydrogenation of intermediates, leading to the desired upgraded secondary alcohols. Conversely, the high dehydrogenation ability of the mono-NHC-Ir complex promoted the conversion of formed secondary alcohols back to ketones. | Siqi Yang Zeye Lu Jiale Ji Qingshu Zheng Tao Tu | 2024 | Science China Chemistry2024，67，3： | 0 |
| 7 | Single-cluster electronics using metallic clusters:Fabrications,regulations,and applications显示文摘Metallic clusters,ranging from 1 to 2 nm in size,have emerged as promising candidates for creating nanoelectronic devices at the single-cluster level.With the intermediate quantum properties between metals and semiconductors,these metallic clusters offer an alternative pathway to silicon-based electronics and organic molecules for miniaturized electronics with dimensions below 5 nm.Significant progress has been made in studies of single-cluster electronic devices.However,a clear guide for selecting,synthesizing,and fabricating functional single-cluster electronic devices is still required.This review article provides a comprehensive overview of single-cluster electronic devices,including the mechanisms of electron transport,the fabrication of devices,and the regulations of electron transport properties.Furthermore,we discuss the challenges and future directions for single-cluster electronic devices and their potential applications. | Caiyun Wei Wei Xu Shurui Ji Ruiyun Huang Junyang Liu Wenqiu Su Jie Bai Jiale Huang Wenjing Hong | 2024 | Nano Research2024，17，1： | 0 |
| 8 | Systemic delivery of microRNA for treatment of brain ischemia显示文摘Brain ischemia is the second leading cause of death and the third leading cause of disability in the world.Systemic delivery of microRNA,a class of molecules that regulate the expression of cellular proteins associated with angiogenesis,cell growth,proliferation and differentiation,holds great promise for the treatment of brain ischemia.However,their therapeutic efficacy has been hampered by poor delivery efficiency of microRNA.We report herein a platform technology based on microRNA nanocapsules,which enables their effective delivery to the disease sites in the brain.Exemplified by microRNA-21,intravenous injection of the nanocapsules into a rat model of cerebral ischemia could effectively ameliorate the infarct volume,neurological deficit and histopathological severity. | Chaoyong Liu Jing Wen Dai Li Hongzhao Qi Lina Nih Jialin Zhu Duo Xu Yu Ren Shanshan Zhang Donglin Han Huanhuan Jia Junhu Zhou Meng Qin Jialing Wu Xubo Yuan Ji Liu Jin Zhao Chunsheng Kang Yunfeng Lu | 2021 | Nano Research2021，14，9： | 0 |
| 9 | Aspect-Level Sentiment Analysis Based on Deep Learning显示文摘In recent years,deep learning methods have developed rapidly and found application in many fields,including natural language processing.In the field of aspect-level sentiment analysis,deep learning methods can also greatly improve the performance of models.However,previous studies did not take into account the relationship between user feature extraction and contextual terms.To address this issue,we use data feature extraction and deep learning combined to develop an aspect-level sentiment analysis method.To be specific,we design user comment feature extraction(UCFE)to distill salient features from users’historical comments and transform them into representative user feature vectors.Then,the aspect-sentence graph convolutional neural network(ASGCN)is used to incorporate innovative techniques for calculating adjacency matrices;meanwhile,ASGCN emphasizes capturing nuanced semantics within relationships among aspect words and syntactic dependency types.Afterward,three embedding methods are devised to embed the user feature vector into the ASGCN model.The empirical validations verify the effectiveness of these models,consistently surpassing conventional benchmarks and reaffirming the indispensable role of deep learning in advancing sentiment analysis methodologies. | Mengqi Zhang Jiazhao Chai Jianxiang Cao Jialing Ji Tong Yi | 2024 | Computers, Materials & Continua2024，78，3： | 0 |
| 10 | A combination process of mineral carbonation with S02 disposal for simulated flue gas by magnesia-added seawater显示文摘The desulfurization by seawater and mineral carbonation have been paid more and more attention.In this study,the feasibility of magnesia and seawater for the integrated disposal of S02 and C02 in the simulated flue gas was investigated.The process was conducted by adding MgO in seawater to reinforce the absorption of S02 and facilitate the mineralization of C02 by calcium ions.The influences of various factors,including digestion time of magnesia,reaction temperature,and salinity were also investigated.The results show that the reaction temperature can effectively improve the carbonation reaction.After combing S02 removal process with mineral carbonation,Ca^2+removal rate has a certain degree of decrease.The best carbonation condition is to use 1.5 times artificial seawater(the concentrations of reagents are 1.5 times of seawater)at 80℃and without digestion of magnesia.The desulfurization rate is close to 100%under any condition investigated,indicating that the seawater has a sufficient desulfurization capacity with adding magnesia.This work has demonstrated that a combination of the absorption of S02 with the absorption and mineralization of C02 is feasible. | Yingying Zhao Mengfan Wu Zhiyong Ji Yuanyuan Wang Jiale Li Jianlu Liu Junsheng Yuan | 2019 | Frontiers of Chemical Science and Engineering2019，13，4： | 0 |
| 11 | Clipping discrete multi-tone for peak-power-constraint IM/DD optical systems显示文摘High peak-to-average power ratio(PAPR)is a major drawback of discrete multi-tone(DMT)in peak-power-constraint(PPC)intensity-modulation/direct-detection(IM/DD)optical systems.Symmetric clipping operation is a frequently-used and practical method for mitigating the PAPR of the DMT signal.However,clipping noise is inevitably induced by the symmetric clipping operation,thereby deteriorating the system’s performance.In this paper,we study the statistical characteristics of the clipping noise in detail.Depending on the statistical characteristics,clipping-noise-cancellation(CNC)algorithms are proposed to mitigate the clipping noise in the clipping DMT systems.Theoretically,the clipping noise can be completely removed using the low-density-parity-check-assisted CNC algorithm(LDPC-assisted CNC algorithm).To verify the superiority of the clipping DMT with the CNC algorithm,we conduct an experiment with a50 Gb/s DMT system using 10G-class commercial devices for the scenario of PPC passive optical networks.The receiver sensitivity of the clipping DMT system with the CNC algorithm can reach-24 d Bm at a 20%soft-decision forward-error-correction limit,which is 2.5 d B higher than that of the DMT system without clipping operation.The clipping operation and the CNC algorithm are added after the original digital signal processing,thereby demonstrating the potential to efectively overcome the drawback in DMT signals and other high-PAPR signals. | Ji ZHOU Liangchuan LI Jiale HE Xiaofeng LU Yu BO Guanyu WANG Yuanda HUANG Gengchen LIU Yanzhao LU Shecheng GAO Yuanhua FENG Shancheng ZHAO Weiping LIU Changyuan YU Zhaohui LI | 2023 | Science China(Information Sciences)2023，66，5： | 0 |
| 12 | Flow field reconstruction and shock train leading edge position detection of scramjet isolation section based on a small amount of CFD data显示文摘Scramjet is the main power device of hypersonic vehicles. With the gradual expansion of wide velocity domain, shock wave/shock wave and shock wave/boundary layer are the main phenomena in scramjet isolator. When the leading edge of the shock train is pushed out from the inlet of the isolator, the engine will not start. Therefore, it is very important to detect the flow field structure in the isolator and the leading edge position of the shock train. The traditional shock train detection methods have low detection accuracy and slow detection speed. This paper describes a method based on deep learning to reconstruct the flow field in the isolator and detect the leading edge of the shock train. Under various back pressure conditions, the flow field images of computational fluid dynamics (CFD) data and the corresponding upper and lower wall pressure data were obtained, and a data set corresponding to pressure and flow field was constructed. By constructing and training convolutional neural networks, a mapping model with pressure information as input and flow field image as output is obtained, and then the leading edge position of shock train is detected on the output flow field image. The experimental results show that the average structure similarity (SSIM) between the reconstructed flow field image and the CFD flow field image is 0.902, the average peak signal-to-noise ratio (PSNR) is 25.289, the average correlation coefficient (CORR) is 0.956, and the root mean square error of shock train leading edge detection is 3.28 mm. Moreover, if the total pressure input is appropriately reduced, the accuracy of flow field reconstruction does not decline significantly, which means that the model has a certain robustness. Finally, in order to improve the detection accuracy of the leading edge position, we fine tuned the model and obtained another detection method, which reduced the root mean square error of the detection results to 1.87 mm. | Hao Chen Ye Tian Mingming Guo Jialing Le Yuan Ji Yi Zhang Hua Zhang Chenlin Zhang | 2022 | Advances in Aerodynamics2022，4，1： | 0 |
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