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Different environmental factors drive tree species diversity along elevation gradients in three climatic zones in Yunnan,southern China

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Plant Diversity 2021年第6期43卷 433-443页

作者： Xiaoyang Song Min Cao Jieqiong Li Roger L.Kitching Akihiro Nakamura Melinda J.Laidlaw Yong Tang Zhenhua Sun wenfu zhang Jie Yang CAS Key Laboratory of Tropical Forest Ecology Xishuangbanna Tropical Botanical GardenChinese Academy of Sciences666303YunnanChina Center of Conservation Biology Core Botanical GardensChinese Academy of SciencesMengla666303China School of Environmental&Natural Sciences Griffith UniversityNathan QLD4111BrisbaneAustralia Department of Environment and Science Queensland HerbariumToowongAustralia

Elevational patterns of tree diversity are well studied ***,few studies have examined how seedlings respond to elevational gradients and whether their responses vary across climatic *** this study,we established three elevational transects in tropical,subtropical and subalpine mountain forests in Yunnan Province,southern China,to examine the responses of tree species and their seedlings to elevational *** each transect,we calculated species diversity indices and composition of both adult trees and seedlings at different *** both adult trees and seedlings,we found that species diversity decreased with increasing elevation in both tropical and subalpine *** composition showed significant elevational separation within all three *** species had specific elevational preferences,but abundant tree species that occurred at specific elevations tended to have very limited recruitment in the *** results highlight that the major factors that determine elevational distributions of tree species vary across climatic ***,we found that the contribution of air temperature to tree species composition increased from tropical to subalpine transects,whereas the contribution of soil moisture decreased across these transects.

关键词： Air temperature Climate zones Montane forest Soil moisture Seedling Tree species distribution

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Genetic-algorithm-based deep neural networks for highly efficient photonic device design

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Photonics Research 2021年第6期9卷 I0001-I0006页

作者： YANGMING REN LINGXUAN zhang WEIQIANG WANG XINYU WANG YUFANG LEI YULONG XUE XIAOCHEN SUN wenfu zhang State Key Laboratory of Transient Optics and Photonics Xi’an Institute of Optics and Precision MechanicsChinese Academy of SciencesXi’an 710119China University of Chinese Academy of Sciences Beijing 100049China

While deep learning has demonstrated tremendous potential for photonic device design,it often demands a large amount of labeled data to train these deep neural network *** these data requires high-resolution numerical simulations or experimental measurements and cost significant,if not prohibitive,time and *** this work,we present a highly efficient inverse design method that combines deep neural networks with a genetic algorithm to optimize the geometry of photonic devices in the polar coordinate *** method requires significantly less training data compared with previous inverse design *** implement this method to design several ultra-compact silicon photonics devices with challenging properties including power splitters with uncommon splitting ratios,a TE mode converter,and a broadband power *** devices are free of the features beyond the capability of photolithography and generally in compliance with silicon photonics fabrication design rules.

关键词： neural networks algorithm

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清热解毒散结方联合肝动脉化疗栓塞术治疗原发性肝癌肝热血瘀型临床研究

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河北中医 2024年第3期46卷 415-419页

作者：邓聪颖戴铭王振常吕建林黄晶晶张文富广西中医药大学广西南宁530200 广西国际壮医医院脾胃肝病科广西南宁530201 广西中医药大学第一附属医院仁爱分院肝病科广西南宁530023 广西中医药大学第一附属医院脾胃肝病科广西南宁530023

目的观察清热解毒散结方联合肝动脉化疗栓塞(TACE)术治疗原发性肝癌肝热血瘀型患者的临床疗效。方法将80例原发性肝癌肝热血瘀型患者按照随机数字表法分为2组,对照组40例予TACE术治疗,治疗组40例在对照组治疗基础上加用清热解毒散结方治... 详细信息

目的观察清热解毒散结方联合肝动脉化疗栓塞(TACE)术治疗原发性肝癌肝热血瘀型患者的临床疗效。方法将80例原发性肝癌肝热血瘀型患者按照随机数字表法分为2组,对照组40例予TACE术治疗,治疗组40例在对照组治疗基础上加用清热解毒散结方治疗,2组均连续治疗8周。比较2组临床疗效;比较2组治疗前后总胆红素(TBiL)、丙氨酸氨基转移酶(ALT)、天冬氨酸氨基转移酶(AST)、糖类抗原199(CA199)、甲胎蛋白(AFP)水平变化;比较2组治疗前后症状评分变化。结果治疗组总有效率60.0%(24/40),对照组总有效率45.0%(18/40),治疗组临床疗效优于对照组(P<0.05)。2组治疗后TBiL、ALT、AST水平均较本组治疗前降低(P<0.05),治疗后治疗组TBiL、ALT、AST水平均低于对照组(P<0.05)。2组治疗后CA199、AFP水平均较本组治疗前降低(P<0.05),治疗后治疗组CA199、AFP水平均低于对照组(P<0.05)。2组治疗后恶心、肝区疼痛、乏力、纳差评分均较本组治疗前降低(P<0.05),治疗后治疗组恶心、肝区疼痛、乏力、纳差评分均低于对照组(P<0.05)。结论清热解毒散结方联合TACE术治疗原发性肝癌肝热血瘀型,能降低转氨酶水平,促进肝功能恢复,缓解临床症状,减轻术后副作用。

关键词：肝肿瘤中西医结合疗法

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逍遥散合大黄[庶虫]虫丸治疗原发性肝癌经肝动脉化疗栓塞术后气滞血瘀型疗效研究

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陕西中医 2024年第2期45卷 187-190页

作者：吉银戴铭王振常吕建林黄晶晶张文富广西中医药大学广西南宁530200 广西国际壮医医院广西南宁530201 广西中医药大学第一附属医院广西南宁530023

目的:研究逍遥散合大黄[庶虫]虫丸对经肝动脉化疗栓塞(TACE)术后的原发性肝癌(PLC)患者气滞血瘀型的治疗效果。方法:将80例肝癌气滞血瘀型患者采用随机数字表法分为观察组和对照组各40例。对照组肝癌患者TACE术后予对症治疗,观察组肝癌... 详细信息

目的:研究逍遥散合大黄[庶虫]虫丸对经肝动脉化疗栓塞(TACE)术后的原发性肝癌(PLC)患者气滞血瘀型的治疗效果。方法:将80例肝癌气滞血瘀型患者采用随机数字表法分为观察组和对照组各40例。对照组肝癌患者TACE术后予对症治疗,观察组肝癌患者在对症治疗的基础上联合逍遥散合大黄[庶虫]虫丸进行治疗。经治疗1个月后复查肝功能、凝血功能、肿瘤指标及上腹部影像学检查的变化情况。结果:观察组血清甲胎蛋白(AFP)、糖类抗原199(CA199)、糖类抗原125(CA125)等肿瘤指标,谷丙转氨酶(ALT)、谷草转氨酶(AST)、总胆红素(TBIL)、总蛋白(TP)、白蛋白(ALB)等肝功能指标,凝血酶原时间(PT)、凝血酶原活动度(PTA)、国际标准化比值(INR)、纤维蛋白原(FIB)等凝血功能指标低于对照组,差异具有统计学意义(P<0.05),观察组总有效率75.00%,获益率90.00%,对照组总有效率32.50%,获益率57.50%,观察组总有效率高于对照组(P<0.05)。结论:肝癌气滞血瘀型患者在经过TACE术后,在对症治疗的基础上加用中药内服方逍遥散合大黄[庶虫]虫丸具有更好的疗效,逍遥散合大黄[庶虫]虫丸可以加强对肝功能的保护,有效地改善凝血功能,降低肝癌的转移程度。

关键词：原发性肝癌逍遥散大黄[庶虫]虫丸肝动脉化疗栓塞术气滞血瘀型甲胎蛋白

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Numerical simulation and temporal characterization of dual-pumped microringresonator-based optical frequency combs

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Photonics Research 2017年第3期5卷 207-211页

作者： XIAOHONG HU WEIQIANG WANG LEIRAN WANG wenfu zhang YISHAN WANG WEI ZHAO State Key Laboratory of Transient Optics and Photonics Xi’an Institute of Optics and Precision MechanicsChinese Academy of Science University of Chinese Academy of Sciences China-UK Joint Research Center on Micro/Nano Photonics Xi’an Institute of Optics and Precision MechanicsChinese Academy of Science

Dual-pumped microring-resonator-based optical frequency combs(OFCs) and their temporal characteristics are numerically investigated and experimentally explored. The calculation results obtained by solving the driven and damped nonlinear Schr?dinger equation indicate that an ultralow coupled pump power is required to excite the primary comb modes through a non-degenerate four-wave-mixing(FWM) process and, when the pump power is boosted, both the comb mode intensities and spectral bandwidths increase. At low pump powers, the field intensity profile exhibits a cosine variation manner with frequency equal to the separation of the two pumps, while a roll Turing pattern is formed resulting from the increased comb mode intensities and spectral bandwidths at high pump powers. Meanwhile, we found that the power difference between the two pump fields can be transferred to the newly generated comb modes, which are located on both sides of the pump modes, through a cascaded FWM process. Experimentally, the dual-pumped OFCs were realized by coupling two self-oscillating pump fields into a microring resonator. The numerically calculated comb spectrum is verified by generating an OFC with 2.0 THz mode spacing over 160 nm bandwidth. In addition, the formation of a roll Turing pattern at high pump powers is inferred from the measured autocorrelation trace of a 10 free spectral range(FSR) OFC. The experimental observations accord well with the numerical predictions. Due to their large and tunable mode spacing, robustness,and flexibility, the proposed dual-pumped OFCs could find potential applications in a wide range of fields,including arbitrary optical waveform generation, high-capacity optical communications, and signal-processing systems.

关键词： of on or as be Numerical simulation and temporal characterization of dual-pumped microringresonator-based optical frequency combs FWM OFC FSR mode in

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Zeolite-confined Fe-site Catalysts for the Hydrogenation of CO_(2) to Produce High-value Chemicals

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Chemical Research in Chinese Universities 2024年第1期40卷 78-95页

作者： HAN Xiaoyang XIA Huicong TU Weifeng WEI Yifan XUE Dongping LI Minhan YAN wenfu zhang Jia-Nan HAN Yi-Fan College of Materials Science and Engineering Zhengzhou UniversityZhengzhou450001P.R.China State Key Laboratory of Coking Coal Resources Green Exploitation Zhengzhou UniversityZhengzhou450001P.R.China Engineering Research Center of Advanced Functional Material Manufacturing of Ministry of Education School of Chemical EngineeringZhengzhou UniversityZhengzhou450001P.R.China State Key Laboratory of Inorganic Synthesis and Preparative Chemistry and College of Chemistry Jilin UniversityChangchun130012P.R.China State Key Laboratory of Chemical Engineering East China University of Science and TechnologyShanghai200237P.R.China

Zeolite-confined Fe-site catalysts(ZFCs)have emerged as superior materials for sustainably producing high-value chemicals through CO_(2) hydrogenation,owing to their adaptable framework,customizable composition,and thermal *** excel in activating,adsorbing,and converting CO_(2) with remarkable efficiency and consistency in *** has sparked a surge in research interest in recent *** review delves into the latest advancements in CO_(2) catalytic hydrogenation to olefins,alcohols,aromatics,and other liquid hydrocarbons,examining the synthesis,modification tactics,and the correlation between structure and performance across various ***,it underscores the pivotal factors affecting performance and sheds light on the mechanisms behind selectivity control in the CO_(2) hydrogenation process facilitated by *** conclude,it presents pressing challenges and strategic recommendations to inspire the development of high-performance,durable ZFCs for CO_(2) hydrogenation applications.

关键词： Zeolite-confined Fe-site catalyst CO_(2) hydrogenation Modification strategy High-value chemical

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代谢相关脂肪性肝病合并2型糖尿病研究领域的可视化分析

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循证护理 2024年第10期10卷 1787-1794页

作者：杨梦莹娄文瀚秦辉艳胡振斌张文富吕建林柳琳琳广西中医药大学广西530000 广西中医药大学第一附属医院

目的:通过文献计量学方法,分析代谢相关脂肪性肝病合并2型糖尿病领域的研究现状,为该领域未来的研究提供参考与借鉴。方法:以Web of Science核心数据库为数据来源,检索建库至2023年7月1日的代谢相关脂肪性肝病合并2型糖尿病领域的相关文... 详细信息

目的:通过文献计量学方法,分析代谢相关脂肪性肝病合并2型糖尿病领域的研究现状,为该领域未来的研究提供参考与借鉴。方法:以Web of Science核心数据库为数据来源,检索建库至2023年7月1日的代谢相关脂肪性肝病合并2型糖尿病领域的相关文献,运用CiteSpace软件进行发文量、国家、作者、关键词的文献计量学分析。结果:共有1197篇文献纳入研究,发文量逐年增长。其中,中国是发文量(353篇)最多的国家,美国中心性(0.53)位居第一。来自维罗纳大学的Targher Giovanni是发文量最多的作者(39篇)。高频关键词主要包括胰岛素抵抗、代谢综合征、心血管疾病、纤维化、脂肪性肝炎、肥胖、危险因素、发病率等。突现关键词包括胰岛素抵抗、代谢综合征、肠道菌群、机制等。结论:代谢相关脂肪性肝病合并2型糖尿病是目前备受关注的研究方向,目前研究热点主要集中于发病机制、筛查、评估及管理等内容,近几年的研究趋势主要集中在肠道菌群及相关机制研究方面。

关键词：代谢相关脂肪性肝病非酒精性脂肪性肝病 2型糖尿病可视化

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Effects of Lay-up structure on Physical and Mechanical Properties of Laminated Bamboo Bundle Board

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Chinese Forestry Science and Technology 2012年第3期11卷 78-79页

作者： zhang wenfu Wang Ge Cheng Haitao Lin Limin Qiu Yaxin International Center for Bamboo and Rattan Heilongjiang Research Institute of Forest Products Industry

The effects of lay-up layer numbers on laminated bamboo bundle board’s physical and mechanical properties and connection performance were *** results show that under the conditions of same layer numbers,along with the increase of the lay-up directions,the bending strength,bending modulus,compression strength and horizontal shear strength of the laminated board showed a downward trend,while using non-single direction lay-up structure,the board’s waterproof property was lower than that of single lay-up board, but the board’s connection performance was raised. Therefore,in the real application,with the condition of guaranteeing the mechanical properties of the board to meet operating requirements,the lay-up directions should be increased to improve the board’s connection performance and to increase the board’s safety.

关键词： bamboo bundle veneer laminated board mechanical property water resistance connection performance

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Hyperbolic resonant radiation of concomitant microcombs induced by cross-phase modulation

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Photonics Research 2023年第6期11卷 1075-1084页

作者： YANG WANG WEIQIANG WANG ZHIZHOU LU XINYU WANG LONG HUANG BRENT ELITTLE SAI TCHU WEI ZHAO wenfu zhang State Key Laboratory of Transient Optics and Photonics Xi’an Institute of Optics and Precision MechanicsChinese Academy of SciencesXi’an 710119China University of Chinese Academy of Sciences Beijing 100049China Chongqing United Microelectronics Center(CUMEC) Chongqing 401332China Department of Physics and Materials Science City University of Hong KongHong KongChina

A high-quality optical microcavity can enhance optical nonlinear effects by resonant recirculation,which provides a reliable platform for nonlinear optics *** a soliton microcomb and a probe optical field are coexisting in a micro-resonator,a concomitant microcomb(CMC)induced by cross-phase modulation(XPM)will be formed ***,we characterize the CMC comprehensively in a micro-resonator through theory,numerical simulation,and experimental *** is found that the CMCs spectra are modulated due to resonant radiation(RR)resulting from the interaction of dispersion and XPM *** group velocity dispersion induces symmetric RRs on the CMC,which leads to a symmetric spectral envelope and a dual-peak pulse in frequency and temporal domains,respectively,while the group velocity mismatch breaks the symmetry of RRs and leads to asymmetric spectral and temporal *** the group velocity is linearly varying with frequency,two RR frequencies are hyperbolically distributed about the pump,and the probe light acts as one of the asymptotic *** results enrich the CMC dynamics and guide microcomb design and applications such as spectral extension and dark pulse generation.

关键词： resonant symmetric dispersion

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Program-controlled single soliton microcomb source

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Photonics Research 2021年第1期9卷 66-72页

作者： XINYU WANG PENG XIE WEIQIANG WANG YANG WANG ZHIZHOU LU LEIRAN WANG SAI TCHU BRENT ELITTLE WEI ZHAO wenfu zhang State Key Laboratory of Transient Optics and Photonics Xi’an Institute of Optics and Precision Mechanics(XIOPM)Chinese Academy of Sciences(CAS)Xi’an 710119China University of Chinese Academy of Sciences Beijing 100049China Department of Physics and Materials Science City University of Hong KongHong KongChina

Soliton microcombs(SMCs)are spontaneously formed in a coherently pumped high-quality microresonator,which provides a new tool for use as an on-chip frequency comb for applications of high-precision metrology and ***,generation of SMCs seriously relies on advanced experimental techniques from professional ***,we experimentally demonstrate a program-controlled single SMC source where the intracavity thermal effect is timely balanced using an auxiliary laser during single SMC *** microcomb power is adopted as the criteria for microcomb states discrimination and a forward and backward thermal tuning technique is employed for the deterministic single SMC ***,based on a closed-loop control system,the repetition rate stability of the SMC source improved more than 20 times and the pump frequency can be continuously tuned by simply changing the operation *** reliability of the SMC source is verified by consecutive 200 generation trials and maintaining over 10 *** believe the proposed SMC source will have significant promising influences in future SMC-based application development.

关键词： tuning pumped pump

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