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| 1 | Unconventional Natural Gas Accumulations in Stacked Deposits:A Discussion of Upper Paleozoic Coal-Bearing Strata in the East Margin of the Ordos Basin, China显示文摘The Upper Paleozoic(Carboniferous to Permian) succession in the east margin of the Ordos Basin in the North China Craton has a potential to contain significant hydrocarbon resources, though attention have been mainly attracted for its successful development of coalbed methane(CBM). To improve the previous resource estimates and evaluate the hydrocarbon play possibilities, this study incorporated new discoveries of hydrocarbon units and their stratigraphic relation with source rocks, hydrocarbon migration and trapping configurations. Continuous hydrocarbon accumulation units were identified within the Upper Paleozoic, including the Taiyuan, Shanxi and Xiashihezi formations with great tight gas potential, and the Taiyuan and Shanxi formations also containing shale gas and CBM. Different strata combinations are identified with coal deposition and favour for continuous gas accumulations, including the tidal flat, deltaic and fluvial systems distributed in most of the study areas. Methane was not only generated from the thick coal seams in the Taiyuan and Shanxi formations, but also from shale and dark mudstones. The coal, shale and tight sandstones are proved of remarkable gas content and hydrocarbon indications, and the gas saturation of tight sandstones decreases upward. The stacked deposit combinations vary isochronally in different areas, while the coal seams were developed stably showing good gas sources. Two key stages control the hydrocarbon enrichment, the continuous subsidence from coal forming to Late Triassic and the anomalous paleo-geothermal event happened in Early Cretaceous, as indicated by the fluid inclusions evidence. Extensive areas show good hydrocarbon development potential presently, and more works should be focused on the evaluation and selection of good reservoir combinations. | LI Yong YANG Jianghao PAN Zhejun MENG Shangzhi WANG Kai NIU Xinlei | 2019 | Acta Geologica Sinica(English Edition)2019，93，1： | 32 |
| 2 | Toward Wisdom-Evolutionary and Primitive-Concise 6G:A New Paradigm of Semantic Communication Networks显示文摘The sixth generation(6G)mobile networks will reshape the world by offering instant,efficient,and intelligent hyper-connectivity,as envisioned by the previously proposed Ubiquitous-X 6G networks.Such hyper-massive and global connectivity will introduce tremendous challenges into the operation and management of 6G networks,calling for revolutionary theories and technological innovations.To this end,we propose a new route to boost network capabilities toward a wisdom-evolutionary and primitive-concise network(WePCN)vision for the Ubiquitous-X 6G network.In particular,we aim to concretize the evolution path toward the WePCN by first conceiving a new semantic representation framework,namely semantic base,and then establishing an intelligent and efficient semantic communication(IE-SC)network architecture.In the IE-SC architecture,a semantic intelligence plane is employed to interconnect the semantic-empowered physical-bearing layer,network protocol layer,and application-intent layer via semantic information flows.The proposed architecture integrates artificial intelligence and network technologies to enable intelligent interactions among various communication objects in 6G.It features a lower bandwidth requirement,less redundancy,and more accurate intent identification.We also present a brief review of recent advances in semantic communications and highlight potential use cases,complemented by a range of open challenges for 6G. | Ping Zhang Wenjun Xu Hui Gao Kai Niu Xiaodong Xu Xiaoqi Qin Caixia Yuan Zhijin Qin Haitao Zhao Jibo Wei Fangwei Zhang | 2022 | Engineering2022，8，1： | 28 |
| 3 | Threat Assessment Method Based on Intuitionistic Fuzzy Similarity Measurement Reasoning with Orientation显示文摘The aim of this paper is to propose a threat assessment method based on intuitionistic fuzzy measurement reasoning with orientaion to deal with the shortcomings of the method proposed in [Ying-Jie Lei et al., Journal of Electronics and Information Technology 29(9)(2007)2077-2081] and [Dong-Feng Chen et al., Procedia Engineering 29(5)(2012)3302-3306] the ignorance of the influence of the intuitionistic index's orientation on the membership functions in the reasoning, which caused partial information loss in reasoning process. Therefore, we present a 3D expression of intuitionistic fuzzy similarity measurement, make an analysis of the constraints for intuitionistic fuzzy similarity measurement, and redefine the intuitionistic fuzzy similarity measurement. Moreover, in view of the threat assessment problem, we give the system variables of attribute function and assessment index, set up the reasoning system based on intuitionistic fuzzy similarity measurement with orientation, and design the reasoning rules, reasoning algorithms and fuzzy-resolving algorithms. Finally, through the threat assessment, some typical examples are cited to verify the validity and superiority of the method. | WANG Yi LIU Sanyang NIU Wei LIU Kai LIAO Yong | 2014 | China Communications2014，11，6： | 15 |
| 4 | Eleven COVID-19 Outbreaks with Local Transmissions Caused by the Imported SARS-CoV-2 Delta VOC-China,July-August,2021显示文摘Starting from December 2019,Wuhan,China,encountered the first outbreak of coronavirus disease 2019(COVID-19)(1-2).The epidemic was successfully suppressed by strict containment so that the number of infected people was reduced to 0 on April 8,2020(3–4).After that,China experienced roughly 3 dozen outbreaks with local transmission caused by imported severe acute respiratory syndrome coronavirus 2(SARS-CoV-2). | Lei Zhou Kai Nie Hongting Zhao Xiang Zhao Bixiong Ye Ji Wang Cao Chen Hong Wang Jiangli Di Jinsong Li Chao Li Zhixiao Chen Ruiqi Ren Peihua Niu Hui Chen Tao Chen Yali Wang Lili Li Bingxue Han Ruhan A Si Chen Dan Li Dan Li Chunxia Jin Xin Zhang Jiangmei Liu Chunyu Xu Yecheng Yao Yenan Feng Zhili Li Bike Zhang Yang Song Peter Hao Yanping Zhang Hao Li Qun Li George F.Gao Guoqing Shi Wenbo Xu | 2021 | China CDC weekly2021，3，41： | 13 |
| 5 | Methylprednisolone promotes recovery of neurological function after spinal cord injury: association with Wnt/β-catenin signaling pathway activation显示文摘Some studies have indicated that the Wnt/β-catenin signaling pathway is activated following spinal cord injury,and expression levels of specific proteins,including low-density lipoprotein receptor related protein-6 phosphorylation,β-catenin,and glycogen synthase kinase-3β,are significantly altered.We hypothesized that methylprednisolone treatment contributes to functional recovery after spinal cord injury by inhibiting apoptosis and activating the Wnt/β-catenin signaling pathway.In the current study,30 mg/kg methylprednisolone was injected into rats with spinal cord injury immediately post-injury and at 1 and 2 days post-injury.Basso,Beattie,and Bresnahan scores showed that methylprednisolone treatment significantly promoted locomotor functional recovery between 2 and 6 weeks post-injury.The number of surviving motor neurons increased,whereas the lesion size significantly decreased following methylprednisolone treatment at 7 days post-injury.Additionally,caspase-3,caspase-9,and Bax protein expression levels and the number of apoptotic cells were reduced at 3 and 7days post-injury,while Bcl-2 levels at 7 days post-injury were higher in methylprednisolone-treated rats compared with saline-treated rats.At 3 and 7 days post-injury,methylprednisolone up-regulated expression and activation of the Wnt/β-catenin signaling pathway,including low-density lipoprotein receptor related protein-6 phosphorylation,β-catenin,and glycogen synthase kinase-3β phosphorylation.These results indicate that methylprednisolone-induced neuroprotection may correlate with activation of the Wnt/β-catenin signaling pathway. | Gong-biao Lu Fu-wen Niu Ying-chun Zhang Lin DU Zhi-yuan Liang Yuan Gao Ting-zhen Yan Zhi-kui Nie Kai Gao | 2016 | Neural Regeneration Research2016，11，11： | 11 |
| 6 | 晚期非小细胞肺癌免疫检查点抑制剂新型生物标志物:血液PD-L1动态检测显示文摘背景免疫检查点抑制剂(immune checkpoint inhibitors,ICIs)具有良好疗效已成为恶性肿瘤治疗领域备受瞩目的翘楚。然而,仅有小部分患者获得长期临床获益。如何选择生物标志物来筛查ICIs治疗优势人群仍是一大热点。方法收集51例晚期恶性肿瘤患者的肿瘤组织和配对血样本,进行PD-L1表达的相关性分析。40例晚期非小细胞肺癌(non-small cell lung cancer,NSCLC)患者接受ICIs治疗,2个月时检测血液PD-L1(bloodPD-L1,bPD-L1)表达的动态变化,包括PD-L1 mRNA、外泌体PD-L1(exosomalPD-L1,exoPD-L1)蛋白和可溶性PD-L1(solublePD-L1,sPD-L1)。应用R软件计算最佳截断值,用于预测最佳客观缓解(best objective response,b OR)、无进展生存期(progression-free survival,PFS)和总生存期(overall survival,OS)。结果51例不同恶性肿瘤患者中,组织PD-L1(tissuePD-L1,tPD-L1)表达阳性患者的PD-L1mRNA表达水平显著升高。40例接受ICIs治疗的晚期NSCLC患者中,bPD-L1 mRNA上调≥2.04的患者b OR、PFS和OS更佳;21例接受ICIs治疗的晚期NSCLC患者中,exoPD-L1上调≥1.86的患者临床获益更大。sPD-L1动态变化与ICIs疗效无显著相关性。PD-L1 mRNA和exoPD-L1联合检测更有利于预测ICIs治疗疗效。结论bPD-L1表达与tPD-L1表达存在正相关;晚期NSCLC患者ICIs治疗初期PD-L1 mRNA和(或)exoPD-L1表达升高,可作为评估临床获益的新型生物标志物。 | Qiao YANG Mingjing CHEN Jiaoyang GU Kai NIU Xianlan ZHAO Linpeng ZHENG Zihan XU Yongxin YU Feng LI Lingxin MENG Zhengtang CHEN Wenlei ZHUO Luping ZHANG Jianguo SUN 杨峤(译) 孙建国(译) | 2021 | 中国肺癌杂志2021，24，12： | 10 |
| 7 | Electrostatic self-assembly of MXene and edge-rich CoAl layered double hydroxide on molecular-scale with superhigh volumetric performances显示文摘It is highly desirable to design and synthesize two-dimensional nanostructured electrode materials with high electrical conductivity,large electrolyte-accessible surface area and more exposed active sites for energy storage applications.Herein,MXene/Co Al-LDH heterostructure has been prepared through electrostatic ordered hetero-assembly of monolayer MXene and edge-rich Co Al-LDH nanosheets in a faceto-face manner on molecular-scale for supercapacitor applications.Benefiting from the unique structure,strong interfacial interaction and synergistic effects between MXene and Co Al-LDH nanosheets,the electrical conductivity and exposed electrolyte-accessible active sites are significantly enhanced.The asprepared MXene/Co Al-LDH-80%(ML-80)film exhibits high volumetric capacity of 2472 C cm-3 in 3 M KOH electrolyte with high rate capability of 70.6%at 20 A g-1.Notably,to the best of our knowledge,the high volumetric capacity is the highest among other previously reported values for supercapacitors in aqueous electrolytes.Furthermore,our asymmetric supercapacitor device fabricated with ML-80 and MXene/graphene composite as cathode and anode,respectively,exhibits impressive volumetric energy density of 85.4 Wh L-1 with impressive cycling stability of 94.4%retention ratio after 30,000 continuous charge/discharge cycles. | Hao Niu Xue Yang Qian Wang Xiaoyan Jing Kui Cheng Kai Zhu Ke Ye Guiling Wang Dianxue Cao Jun Yan | 2020 | Journal of Energy Chemistry2020，29，7： | 6 |
| 8 | Construction of plasmid vector pAFP-HSVtk-IRES2-EGFP and its effect on the cytotoxicity of ganciclovir to hepatocellular carcinoma显示文摘 | Lai Zhiyong Qin Qin Yu Baofeng Xie Jun Gao Ranpeng Zhang Tiantian Li Chunfeng Niu Kai Xu Jun | 2014 | Chinese Medical Journal2014，，12： | 6 |
| 9 | Genetic dissection of rice appearance quality and cooked rice elongation by genome-wide association study显示文摘Appearance and cooked rice elongation are key quality traits of rice. Although some QTL for these traits have been identified, understanding of the genetic relationship between them remains limited. In the present study, large phenotypic variation was observed in 760 accessions from the 3 K Rice Genomes Project for both appearance quality and cooked rice elongation. Most component traits of appearance quality and cooked rice elongation showed significant pairwise correlations, but a low correlation was found between appearance quality and cooked rice elongation. A genome-wide association study identified 74 QTL distributed on all 12 chromosomes for grain length, grain width, length to width ratio, degree of endosperm with chalkiness, rice elongation difference, and elongation index. Thirteen regions containing QTL stably expressed in multiple environments and/or exerting pleiotropic effects on multiple traits were detected. By gene-based association analysis and haplotype analysis, 46 candidate genes, including five cloned genes, and 49 favorable alleles were identified for these 13 QTL. The effect of the candidate gene Wx on rice elongation difference was validated by a transgenic strategy. These results shed light on the genetic bases of appearance quality and cooked rice elongation and provide gene resources for improving rice quality by molecular breeding. | Xianjin Qiu Jing Yang Fan Zhang Yanan Niu Xiuqing Zhao Congcong Shen Kai Chen Sheng Teng Jianlong Xu | 2021 | The Crop Journal2021，9，6： | 5 |
| 10 | Ultrahigh energy density battery-type asymmetric supercapacitors: NiMoO4 nanorod-decorated graphene and graphene/Fe2O3 quantum dots显示文摘 | Jiao Yang Wei Liu Hao Niu Kui Cheng Ke Ye Kai Zhu Guiling Wang Dianxue Cao Jun Yan | 2018 | Nano Research2018，11，9： | 5 |
| 11 | A bio-inspired approach for cognitive radio networks显示文摘The recent increasing interest in cognitive radio networks has motivated the study and development of new approaches capable of coping with the intrinsic challenges of this kind of network,such as dynamic spectrum availability,distributed and heterogeneous network architectures,and soaring complexity.The bio-inspired approaches,with appealing characteristics such as autonomy,adaptation and collective intelligence of collaborative individuals,have been extensively studied.This paper presents a comprehensive survey of bio-inspired approaches for cognitive radio networks,emphasizing their domains of application.Specifically,ant colony optimization and particle warm optimization are further investigated with examples and numerical simulation. | HE ZhiQiang NIU Kai QIU Tao SONG Tao XU WenJun GUO Li LIN JiaRu | 2012 | Chinese Science Bulletin2012，57，28： | 5 |
| 12 | Anatomical variation of infra-pyloric artery origination: A prospective multicenter observational study (IPA-Origin)显示文摘Objective: Infra-pyloric artery(IPA) is an important anatomical landmark in treatment of gastric cancer and is the key vessel for pylorus-preserving gastrectomy and subgroup of infra-pyloric lymph nodes. However, its anatomical variation is not thoroughly understood. Our study aimed to clarify the origination of the IPA.Methods: We did this prospective, multicenter, open-label, observational study at gastric surgery departments of34 hospitals in China. Gastric cancer patients aged 18 years or older and scheduled to undergo elective total or distal gastrectomy were assigned. During the surgery, IPA dissecting and exposing the origination point with photographs or video clips were required. The primary outcome was the origination of the IPA. Analysis of variance, χ~2 tests and Fisher's tests were used to analyze the differences between groups. The study is registered at Clinicaltrials.gov(No. NCT03071237).Results: Between May 8 and July 31, 2017, 429 patients were assigned for the study, and 419(97.7%) patients had the IPA dissected and recorded through photograph or video and were included in the primary outcome analysis. The median age was 62 years old, and 73.7% were male. Among the patients, 78.5% received laparoscopic surgery. Single IPA origination was identified in 398(95.0%) patients, including gastroduodenal artery(GDA) in154(36.8%) patients, anterior superior pancreaticoduodenal artery(ASPDA) in 130(31.0%) patients, and right gastroepiploic artery(RGEA) in 114(27.2%) patients. Fifteen(3.6%) patients were identified with multiple IPA and 6(1.4%) patients were identified as IPA absence. The differences in the distribution of surgical approach(P=0.003) and geographic area(P=0.030) were statistically significant. No difference was shown in sex, age,gastrectomy type, tumor location, and clinical T, N and M stage.Conclusions: Our study found that the IPA originates from GDA, ASPDA and RGEA in similar proportions.Laparoscopic surgery may be more helpful in dissection of the IPA than open surgery. | Rulin Miao Jianjun Qu Zhengrong Li Daguang Wang Jiang Yu Weidong Zang Yong Li Fenglin Liu Jian Zhang Wu Song Kai Ye Su Yan Wei Wang Shuangyi Ren Lu Zang Changqing Jing Li Zhang Kuan Wang Weihua Fu Lin Fan Bin Liang Gang Zhao Jun Cai Li Yang Jiaming Zhu Jun You Kun Yang Qingxing Huang Zhaojian Niu Ning Ning Xingfeng Qiu Gang Ji Feng Liang Hua Huang Chao Gao Fei Shan Shuangxi Li Yongning Jia Lianhai Zhang Xiangji Ying Yan Zhang Zhaode Bu Xiangqian Su Gang Zhao Ziyu Li Jiafu Ji | 2018 | Chinese Journal of Cancer Research2018，30，5： | 5 |
| 13 | Silicified collagen scaffold induces semaphorin 3A secretion by sensory nerves to improve in-situ bone regeneration显示文摘Sensory nerves promote osteogenesis through the release of neuropeptides.However,the potential application and mechanism in which sensory nerves promote healing of bone defects in the presence of biomaterials remain elusive.The present study identified that new bone formation was more abundantly produced after implantation of silicified collagen scaffolds into defects created in the distal femur of rats.The wound sites were accompanied by extensive nerve innervation and angiogenesis.Sensory nerve dysfunction by capsaicin injection resulted in significant inhibition of silicon-induced osteogenesis in the aforementioned rodent model.Application of extracellular silicon in vitro induced axon outgrowth and increased expression of semaphorin 3 A(Sema3A)and semaphorin 4D(Sema4D)in the dorsal root ganglion(DRG),as detected by the upregulation of signaling molecules.Culture medium derived from silicon-stimulated DRG cells promoted proliferation and differentiation of bone marrow mesenchymal stem cells and endothelial progenitor cells.These effects were inhibited by the use of Sema3A neutralizing antibodies but not by Sema4D neutralizing antibodies.Knockdown of Sema3A in DRG blocked silicon-induced osteogenesis and angiogenesis almost completely in a femoral defect rat model,whereas overexpression of Sema3A promoted the silicon-induced phenomena.Activation of“mechanistic target of rapamycin”(mTOR)pathway and increase of Sema3A production were identified in the DRG of rats that were implanted with silicified collagen scaffolds.These findings support the role of silicon in inducing Sema3A production by sensory nerves,which,in turn,stimulates osteogenesis and angiogenesis.Taken together,silicon has therapeutic potential in orthopedic rehabilitation. | Yu-Xuan Ma Kai Jiao Qian-Qian Wan Jing Li Ming-Yi Liu Zi-Bin Zhang Wen Qin Kai-Yan Wang Ya-zhou Wang Franklin R.Tay Li-Na Niu | 2022 | Bioactive Materials2022，7，3： | 4 |
| 14 | VOCs evaporative emissions from vehicles in China:Species characteristics of different emission processes显示文摘Vehicle evaporation is an essential source of VOCs in cities but is not well understood in China.Reported emission factors from previous studies are not enough for understanding the atmospheric chemical process of vehicular evaporative VOCs.In this work,a serious of detailed VOCs speciation profiles are developed based on test processes and emission processes.A mass balance method was used to divide different emission processes during diurnal tests.The results show that headspace vapor of gasoline cannot represent the real-world vehicle evaporation because of the significant differences in VOCs speciation profiles,especially for aromatics.To further distinguish emissions from evaporation and exhaust,only the ratios of MTBE/benzene and MTBE/toluene can serve as indicators when considering species from all evaporative processes.Besides,emissions from different sources change significantly with the seasons.To solve these problems,we developed a monthly comprehensive evaporation speciation profile.The individual profiles at the emission processes are weighted by the emission of the in-use vehicle fleet in Beijing to derive the comprehensive speciation profile of evaporative VOCs.Ozone formation potential(OFP)and secondary organic aerosol potential(SOAP)were used to evaluate the environmental impact.For SOAP,100 g evaporative emissions are equal to 6.05-12.71 g toluene in different months,much higher than that given using headspace vapors,especially in winter(7.2 times higher in December).These findings would improve our understanding of the evaporative VOCs emissions in China and their environmental impacts(e.g.,O3 and SOA formation). | Hanyang Man Huan Liu He Niu Kai Wang Fanyuan Deng Xiaotong Wang Qian Xiao Jiming Hao | 2020 | Environmental Science and Ecotechnology2020，，1： | 4 |
| 15 | Smart Cutting Tools and Smart Machining: Development Approaches, and Their Implementation and Application Perspectives显示文摘Smart machining has tremendous potential and is becoming one of new generation high value precision manufacturing technologies in line with the advance of Industry 4.0 concepts. This paper presents some innovative design concepts and, in particular, the development of four types of smart cutting tools, including a force-based smart cutting tool, a temperature-based internally-cooled cutting tool, a fast tool servo(FTS) and smart collets for ultraprecision and micro manufacturing purposes. Implementation and application perspectives of these smart cutting tools are explored and discussed particularly for smart machining against a number of industrial application requirements. They are contamination-free machining,machining of tool-wear-prone Si-based infra-red devices and medical applications, high speed micro milling and micro drilling, etc. Furthermore, implementation techniques are presented focusing on:(a) plug-and-produce design principle and the associated smart control algorithms,(b) piezoelectric film and surface acoustic wave transducers to measure cutting forces in process,(c) critical cutting temperature control in real-time machining,(d) inprocess calibration through machining trials,(e) FE-based design and analysis of smart cutting tools, and(f) application exemplars on adaptive smart machining. | Kai Cheng Zhi-Chao Niu Robin C.Wang Richard Rakowski Richard Bateman | 2017 | Chinese Journal of Mechanical Engineering2017，30，5： | 4 |
| 16 | Notch signaling:Its essential roles in bone and craniofacial development显示文摘Notch is a cellecell signaling pathway that is involved in a host of activities including development,oncogenesis,skeletal homeostasis,and much more.More specifically,recent research has demonstrated the importance of Notch signaling in osteogenic differentiation,bone healing,and in the development of the skeleton.The craniofacial skeleton is complex and understanding its development has remained an important focus in biology.In this review we briefly summarize what recent research has revealed about Notch signaling and the current understanding of how the skeleton,skull,and face develop.We then discuss the crucial role that Notch plays in both craniofacial development and the skeletal system,and what importance it may play in the future. | Mikhail Pakvasa Pranav Haravu Michael Boachie-Mensah Alonzo Jones Elam Coalson Junyi Liao Zongyue Zeng Di Wu Kevin Qin Xiaoxing Wu Huaxiu Luo Jing Zhang Meng Zhang Fang He Yukun Mao Yongtao Zhang Changchun Niu Meng Wu Xia Zhao Hao Wang Linjuan Huang Deyao Shi Qing Liu Na Ni Kai Fu Michael J.Lee Jennifer Moriatis Wolf Aravind Athiviraham Sherwin S.Ho Tong-Chuan He Kelly Hynes Jason Strelzow Mostafa El Dafrawy Russell R.Reid | 2021 | Genes & Diseases2021，8，1： | 4 |
| 17 | 【原创论文】5—α还原酶在前列腺内的差异性表达及临床意义显示文摘人类良性或恶性前列腺疾病的发展与雄激素密切相关。雄激素主要包括睾酮(T)和双氢睾酮(DHT)。通过5-α还原酶(5-AR)的作用,睾酮转化成双氢睾酮。在人类良性和恶性前列腺组织中观察N5-α还原酶的表达具有差异性。5-α还原酶抑制剂(5-ARI)通常用于良性前列腺增生(BPH)的治疗,近年曾用于前列腺癌(PCa)的预防。本篇综述主要讨论在人类前列腺的正常发育和良性前列腺增生及前列腺癌发生与进展过程中,5-α还原酶差异性表达所发挥的作用。 | Kai Wang Dong-Dong Fan Song Jin Nian-Zeng Xing Yi-Nong Niu | 2014 | Asian Journal of Andrology2014，16，2： | 4 |
| 18 | Preparation and characterization of sulfated TiO_2 with rhodium modification used in esterification reaction and decomposition of methyl orange显示文摘A unique Rh/TiO_2 solid acid catalyst modified with H_2SO_4 was synthesized and evaluated in the esterification reaction of propylene glycol methyl ether and decomposition of methyl orange(MO) in aqueous phase under halogen lamp irradiation. For this purpose, rhodium(Rh) nanoparticles were loaded on SO_4^(2-)/TiO_2 via the photo-deposition method. It was found that SO_4^(2-)/Rh–TiO_2 exhibited stronger catalytic activity than SO_4^(2-)/TiO_2. The new catalysts were characterized by X-ray powder diffraction(XRD), Brunauer–Emmett–Teller(BET), Transmission electron microscopy(TEM) and high-resolution(HRTEM), X-ray photoelectron spectroscopy(XPS) and Fourier Transform infrared spectroscopy(FTIR). Results from XRD and BET show that SO_4^(2-)/Rh–TiO_2 has higher specific surface area and smaller pore size than SO42-/TiO_2. The distribution of loaded Rh was found to be uniform with a particle size of 2–4 nm. Data from XPS reveal that Rh primarily exists as Rh^0 and Rh^(3+)in Rh–TiO_2 and SO_4^(2)-/Rh–TiO_2. These valence forms of Rh likely contribute to the enhanced catalytic activity. Furthermore, FT-IR spectra of the catalysts show an abundance of surface hydroxyl groups, which help the formation of hydroxyl radicals and the enhancement of surface acid density. The results show that more acid sites are formed on the sulfated Rh–TiO_2, and these acidic sites are largely responsible for improving the catalytic performance. This superior SO_4^(2-)/Rh–TiO_2 catalyst has potential applications in reactions requiring efficient acid catalysts, including esterification reactions and waste water treatment. | Yu Niu Fuying Li Kai Yang Ting Qiu Renzhang Wang Cheng Lin | 2016 | Chinese Journal of Chemical Engineering2016，24，6： | 3 |
| 19 | Pattern Matrix Design of PDMA for 5G UL Applications显示文摘Pattern division multiple access(PDMA),which is a novel non-orthogonal multiple access(NOMA),has been proposed to address the challenges of massive connectivity and higher spectral efficiency for fifth generation(5G) mobile network.The performance of PDMA mainly depends on the design of PDMA pattern matrix.In this paper,pattern matrix design of PDMA for 5G uplink(UL) applications in massive machine type communication(mMTC) and enhanced mobile broadband(eMBB) deployment scenarios are studied.The design criteria and examples for application in UL mMTC and UL eMBB are investigated.The performance of the PDMA pattern matrix is analyzed with the discrete constellation constrained capacity(CC-Capacity),and verified by Monte Carlo simulation.The simulation results show that the preferred PDMA pattern matrix can achieve good performance with different overloading factors(OF). | Bin Ren Yingmin Wang Xiaoming Dai Kai Niu Wanwei Tang | 2016 | China Communications2016，13，S2： | 3 |
| 20 | Semantic information processing in industrial networks显示文摘The industrial Internet of things(industrial IoT, IIoT) aims at connecting everything, which poses severe challenges to existing wireless communication. To handle the demand for massive access in future industrial networks, semantic information processing is integrated into communication systems so as to improve the effectiveness and efficiency of data transmission. The semantic paradigm is particularly suitable for the purpose-oriented information exchanging scheme in industrial networks. To illustrate its applicability, typical industrial data are investigated, i.e., time series and images. Simulation results demonstrate the superiority of semantic information processing, which achieves a better rate-utility tradeoff than conventional signal processing. | Yao Shengshi Wang Sixian Dai Jincheng Niu Kai Xu Wenjun Zhang Ping | 2022 | The Journal of China Universities of Posts and Telecommunications2022，29，1： | 2 |
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