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山东中医杂志 2019年第2期38卷 146-148,153页

作者：杨静茹淑瑛张福文李柏北京中医药大学东直门医院东区北京101121

目的:分析慢性萎缩性胃炎(CAG)的中医证型分布规律。方法:统计170例CAG患者的性别、年龄、病程、主要症状及中医证型的分布情况,并分析证型分布与性别、年龄、病程之间的相关性。结果:170例CAG患者中,男女比例约1.2∶1;以45岁以上中老... 详细信息

目的:分析慢性萎缩性胃炎(CAG)的中医证型分布规律。方法:统计170例CAG患者的性别、年龄、病程、主要症状及中医证型的分布情况,并分析证型分布与性别、年龄、病程之间的相关性。结果:170例CAG患者中,男女比例约1.2∶1;以45岁以上中老年为主;主要症状为胃脘胀满、胃脘痛、纳呆、泛酸、烧心等;中医证型分布由多到少依次为脾胃虚弱证、肝胃不和证、胃阴不足证、脾胃湿热证、胃络瘀血证;各证型中,性别分布差异无统计学意义(P> 0.05),年龄分布及病程范围差异有统计学意义(P<0.05)。结论:CAG以脾胃虚弱证最为常见,其证型分布与年龄、病程范围有相关性。

关键词：慢性萎缩性胃炎中医辨证分布规律脾胃虚弱证性别年龄病程范围

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Development of short-target primers for species identification in biological studies of Carnivora

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ECOLOGY AND EVOLUTION 2023年第5期13卷 e10135页

作者： Liu, Huiwen Wang, Dan zhang, Chenglin Pu, Tianchun Xiong, Lijuan Wei, fuwen Hu, Yibo Chinese Acad Sci Inst Zool CAS Key Lab Anim Ecol & Conservat Biol Beijing Peoples R China Univ Chinese Acad Sci Beijing Peoples R China Beijing Zoo Beijing Peoples R China Guizhou Normal Univ Sch Life Sci Guiyang Peoples R China

Noninvasive genetic sampling greatly facilitates studies on the genetics, ecology, and conservation of threatened species. Species identification is often a prerequisite for noninvasive sampling-based biological studies. Due to the low quantity and quality of genomic DNA from noninvasive samples, high-performance short-target PCR primers are necessary for DNA barcoding applications. The order Carnivora is characterized by an elusive habit and threatened status. In this study, we developed three pairs of short-target primers for identifying Carnivora species. The COI279 primer pair was suitable for samples with better DNA quality. The COI157a and COI157b primer pairs performed well for noninvasive samples and reduced the interference of nuclear mitochondrial pseudogenes (numts). COI157a could effectively identify samples from Felidae, Canidae, Viverridae, and Hyaenidae, while COI157b could be applied to samples from Ursidae, Ailuridae, Mustelidae, Procyonidae, and Herpestidae. These short-target primers will facilitate noninvasive biological studies and efforts to conserve Carnivora species.

关键词： Carnivora COI noninvasive sample species identification

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五层梁柱式胶合木结构振动台试验研究

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土木工程学报 2018年第12期51卷 52-62页

作者：许清风张富文马瑜蓉陈溪董金芝上海市建筑科学研究院上海200032 上海市工程结构安全重点实验室上海200032 同济大学上海200092

为研究多层胶合木结构的抗震性能,设计制作了一个1:2缩尺的五层梁柱式胶合木结构模型,并对增设屈曲约束支撑和木支撑前后的结构模型开展了振动台试验。试验结果表明:纯框架模型抗侧刚度过低,在7度多遇地震作用下纵、横向的最大层间位移... 详细信息

为研究多层胶合木结构的抗震性能,设计制作了一个1:2缩尺的五层梁柱式胶合木结构模型,并对增设屈曲约束支撑和木支撑前后的结构模型开展了振动台试验。试验结果表明:纯框架模型抗侧刚度过低,在7度多遇地震作用下纵、横向的最大层间位移角分别达到1/145和1/175,不宜在地震区采用;增设支撑后,模型的基频大幅提高、位移响应显著降低,在7度多遇、基本和罕遇地震作用下的层间位移均满足《多高层木结构建筑技术标准》(GB/T 51226—2017)中弹性和弹塑性位移角限值要求;增设木支撑的横向框架在8度罕遇地震作用下,绝大多数木支撑发生断裂破坏,最大层间位移角达到1/11,但结构并未发生倒塌且梁、柱及节点无明显损伤;增设屈曲约束支撑的纵向框架在8度罕遇地震作用下主体结构无明显损伤,仅在支撑连接板处出现了少量局部的平面外屈曲。屈曲约束支撑和木支撑起到了第一道抗震防线的作用,有效保证了胶合木结构主体框架的安全;在合理设计的基础上,梁柱-木支撑和梁柱-屈曲约束支撑的梁柱式胶合木结构体系均可满足8度区抗震设防要求。

关键词：梁柱式胶合木结构振动台试验屈曲约束支撑木支撑抗震性能

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鄂尔多斯盆地东缘佳县地区太原组沉积演化及成藏条件

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天然气地球科学 2025年第1期36卷 86-96页

作者：杨晓利高娟何福文李金付张明张林科徐文会中国石油冀东油田分公司研究院河北唐山063000 东方地球物理公司研究院长庆分院陕西西安710021

鄂尔多斯盆地东缘佳县地区下二叠统太原组具有近源成藏的优越条件,已钻井既在致密砂岩层段试获工业气流,也在灰岩层段中取得较好效果,亟需开展沉积演化及成藏条件研究,明确富集规律,落实有利区带。结合岩心、测井、地震资料,从岩性特征... 详细信息

鄂尔多斯盆地东缘佳县地区下二叠统太原组具有近源成藏的优越条件,已钻井既在致密砂岩层段试获工业气流,也在灰岩层段中取得较好效果,亟需开展沉积演化及成藏条件研究,明确富集规律,落实有利区带。结合岩心、测井、地震资料,从岩性特征、沉积演化、烃源岩分布、断裂特征及储层特征等方面开展研究。结果表明:①佳县地区太原组主要为灰岩—泥岩互层、砂岩—泥岩—灰岩互层两大类型。②佳县地区太原组古地貌总体为北高南低格局,古地貌控制沉积环境、沉积环境决定沉积演化过程。③佳县地区早二叠世太原期不同时期沉积环境有着明显差别,庙沟期南部为碳酸盐岩台地灰坪相,北部为泥坪相;毛儿沟期中部为潮控三角洲相,南北两端为碳酸盐岩台地灰坪相,局部发育障壁砂坝;斜道期大部分地区为碳酸盐岩台地灰坪相,局部发育障壁砂坝;东大窑期整体进入碳酸盐岩台地灰坪相沉积。④佳县地区太原组经历4个阶段的沉积演化后,中部地区主要发育潮控三角洲水下分流河道砂岩,有利于天然气富集成藏,是勘探开发的首选目标,东南部斜道段灰岩、毛儿沟灰岩局部富集成藏,是接替勘探开发目标。⑤佳县地区太原组经过海陆交互沉积演化,为该地区天然气成藏提供了有利条件,三角洲水下分流河道砂岩中晶间孔、岩屑溶孔发育,灰岩中形成了大量的溶孔、生物孔、微裂缝等,为天然气富集成藏提供了充足的储集空间;其下部与8号煤整合接触,上部紧邻5号煤,具有先天近源成藏优势;太原组内部的致密岩层形成侧向封堵,上覆地层中多套泥岩是良好的盖层,这些条件为太原组富集成藏奠定了坚实基础,佳县地区太原组具有良好的天然气勘探开发前景。

关键词：鄂尔多斯盆地太原组灰岩沉积相成藏条件

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邻域级和超像素级差异图融合方法

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激光杂志 2023年第11期44卷 67-71页

作者：贾付文王恒涛张上三峡大学湖北省农田环境监测工程技术研究中心湖北宜昌443002 三峡大学计算机与信息学院湖北宜昌443002

考虑到传统代数运算法生成的合成孔径雷达(Synthetic Aperture Radar, SAR)图像的差异图变化区域和未变化区域对比度差,噪声鲁棒性弱,提出一种邻域级和超像素级差异图融合方法。首先通过对两期图像进行超像素分割,利用超像素结合对数运... 详细信息

考虑到传统代数运算法生成的合成孔径雷达(Synthetic Aperture Radar, SAR)图像的差异图变化区域和未变化区域对比度差,噪声鲁棒性弱,提出一种邻域级和超像素级差异图融合方法。首先通过对两期图像进行超像素分割,利用超像素结合对数运算获取超像素差异图;其次将相似性差异图和超像素差异图在邻域内进行融合;最后利用迭代阈值技术获取变化检测结果。真实的SAR数据集变化检测结果表明:该方法获取的差异图在噪声鲁棒性和对比度上均展现不错的优势,变化检测结果的kappa值在0.8以上,其可视化结果和评价指标均优于对比方法。

关键词：合成孔径雷达(SAR)图像差异图超像素级邻域级变化检测

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Low-temperature re-oxidation of near-interface defects and voltage stability SiC MOS capacitors

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APPLIED SURFACE SCIENCE 2020年 531卷 147312-147312页

作者： Yin, Zhipeng Yang, Chao zhang, Fanglong Su, Yan Qin, fuwen Wang, Dejun Dalian Univ Technol Sch Control Sci & Engn Key Lab Intelligent Control & Optimizat Ind Equip Fac Elect Informat & Elect EngnMinist Educ Dalian 116024 Peoples R China Dalian Univ Technol State Key Lab Mat Modificat Laser Ion & Electron Minist Educ Dalian 116024 Peoples R China

We proposed a solution to improve the interface property and voltage instability of silicon carbide metal-oxide-semiconductor (SiC MOS) capacitors by eliminating near-interface defects with a single oxygen element. Results indicated that the quality of the silicon dioxide (SiO2) film and SiC/SiO2 interface and the voltage stability of SiC MOS capacitors were simultaneously improved by the proposed process. The mechanism underlying the improvement in the electrical performance of SiC MOS capacitors by oxygen plasma re-oxidation annealing (OP-ROA) could be elaborated by analysing the results of secondary ion mass spectroscopy and X-ray photoelectron spectroscopy. We believe that the OP-ROA process can eliminate C- and Si-related defects and silicon oxycarbide (SiOxCy) and reduce the thicknesses of the interface-transition region, thereby decreasing relative Si and C contents near the SiC/SiO2 interface. The evolution of C-related defect structures was simulated through density functional theory calculation, which was performed as a supplemental analysis.

关键词： 4H-silicon carbide Metal-oxide-semiconductor capacitors Near-interface defects Oxygen plasma re-oxidation annealing Voltage stability

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Perspective Transition of Large Language Models for Solving Subjective Tasks

arXiv

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arXiv 2025年

作者： Wang, Xiaolong zhang, Yuanchi Wang, Ziyue Xu, Yuzhuang Luo, fuwen Wang, Yile Li, Peng Liu, Yang Dept. of Comp. Sci. & Tech. Institute for AI Tsinghua University Beijing China Tsinghua University Beijing China Gansu China Harbin Institute of Technology Harbin China College of Computer Science and Software Engineering Shenzhen University Shenzhen China

Large language models (LLMs) have revolutionized the field of natural language processing, enabling remarkable progress in various tasks. Different from objective tasks such as commonsense reasoning and arithmetic question-answering, the performance of LLMs on subjective tasks is still limited, where the perspective on the specific problem plays crucial roles for better interpreting the context and giving proper response. For example, in certain scenarios, LLMs may perform better when answering from an expert role perspective, potentially eliciting their relevant domain knowledge. In contrast, in some scenarios, LLMs may provide more accurate responses when answering from a third-person standpoint, enabling a more comprehensive understanding of the problem and potentially mitigating inherent biases. In this paper, we propose Reasoning through Perspective Transition (RPT), a method based on in-context learning that enables LLMs to dynamically select among direct, role, and third-person perspectives for the best way to solve corresponding subjective problem. Through extensive experiments on totally 12 subjective tasks by using both closed-source and open-source LLMs including GPT-4, GPT-3.5, Llama-3, and Qwen-2, our method outperforms widely used single fixed perspective based methods such as chain-of-thought prompting and expert prompting, highlights the intricate ways that LLMs can adapt their perspectives to provide nuanced and contextually appropriate responses for different problems. © 2025, CC BY.

关键词： Open systems

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Responses of triacylglycerol synthesis inSkeletonema marinoito nitrogen and phosphate starvations¹

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JOURNAL OF PHYCOLOGY 2020年第6期56卷 1505-1520页

作者： zhang, Mei Xing, Yongze Wang, fuwen Mi, Tiezhu Zhen, Yu Ocean Univ China Coll Environm Sci & Engn Qingdao 266100 Peoples R China Pilot Natl Lab Marine Sci & Technol Qingdao Lab Marine Ecol & Environm Sci Qingdao 266237 Peoples R China Minist Educ Key Lab Marine Environm & Ecol Qingdao 266100 Peoples R China Minist Nat Resources Inst Oceanog 4 Beihai 536002 Peoples R China

Skeletonema marinoiis one of the most widespread marine planktonic diatoms in temperate coastal regions and sometimes can form massive blooms. Yet, the molecular mechanisms of triacylglycerol (TAG) synthesis in nutrient-deficient conditions for this species are still unknown. This study aimed to investigate how the TAG biosynthetic pathway ofS. marinoireacts to the culture age and nitrogen (N) or phosphorus (P) deficiency at molecular levels. Meanwhile, we also described the physiological and biochemical changes ofS. marinoiin response to N or P starvation over time. To obtain reliable qRT-PCR data, six putative reference genes were identified for assessing expression stability using geNorm and BestKeeper software, andActinexhibited the most stable expression across 45 ***. We found that the expression of TAG biosynthesis-related genes andACCaseenzyme activity varied in response to the different nutrient conditions and culture age. Taken together, we speculated that the capacity of TAG biosynthesis inS. marinoiis induced by N or P stress, and increases with culture age. Furthermore, TAG biosynthesis appears to respond more strongly to P deficiency than to N deficiency. Our study provides important insights into how diatoms regulate the TAG biosynthetic pathway when stressed by nutrient limitation. Besides, the data obtained from this study also provide useful clues for further exploring genes that can be used for metabolic engineering to enhance lipid production.

关键词： Skeletonema marinoi triacylglycerol synthesis nitrogen phosphorus

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Resilient and secure remote monitoring for a class of cyber-physical systems against attacks

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INFORMATION SCIENCES 2020年 512卷 1592-1605页

作者： Ge, Xiaohua Han, Qing-Long zhang, Xian-Ming Ding, Derui Yang, fuwen Swinburne Univ Technol Sch Software & Elect Engn Melbourne Vic 3122 Australia Griffith Univ Griffith Sch Engn & Built Environm Gold Coast NSW 4222 Australia

This paper is concerned with the resilient and secure remote monitoring of a cyber-physical system of a discrete time-varying state-space form against attacks. The specific statistical characteristic, magnitude, occurring place and time of the attack signals are not required during the monitor design and attack detection procedures. First, an optimal ellipsoidal state prediction and estimation method is delicately developed in such a way that the recursively computed prediction ellipsoid and estimate ellipsoid can both guarantee the containment of the true system state at each time step regardless of the unknown but bounded input signal. It is expected that the two ellipsoids can resist certain attacks as the calculated state prediction and state estimate are sets in state-space rather than single pointwise vectors, thus potentially enhancing the resilience of the remote monitoring system. Second, a set-based evaluation mechanism in combination with a remedy measure are proposed to provide timely detection of certain attacks. Furthermore, a numerically efficient algorithm is established to achieve resilience and attack detection of the remote monitoring system. Finally, it is shown through several case studies on a water supply distribution system that the proposed methods can provide quantitative analysis and evaluation of the potential consequences of various attacks on the remote monitoring system. (C) 2019 Elsevier Inc. All rights reserved.

关键词： Cyber-physical system Resilient monitoring Attack detection Ellipsoidal estimation Water supply distribution system False data injection attack Covert attack

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Promoting propane dehydrogenation over Zn/hollow porous silicalite-1 catalysts via modulating the electronic structures of Pt

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FUEL 2024年 364卷

作者： Yang, fuwen zhang, Jie Chen, Jinwei Wang, Gang Yu, Tong Zhao, Junyu Li, Qian Shi, Zongbo Zhuo, Runsheng Wang, Ruilin Sichuan Univ Coll Mat Sci & Engn Chengdu 610065 Peoples R China Sichuan Univ Engn Res Ctr Alternat Energy Mat & Devices Minist Educ Chengdu 610065 Peoples R China REZEL Catalysts Corp Shanghai 200120 Peoples R China

Propane dehydrogenation (PDH) provides a promising way to meet the requirement of propylene supply, but the commonly-used Pt-based catalysts still suffer from unsatisfactory stability and deactivation. Herein, an interfacial regulation strategy is developed to construct the Cu, Pt, and Zn species modified hollow porous silicalite-1 (CuPt/ Zn-HPS-1). Owing to the regulation role of Pt, the electron-deficient [ZnOH]+ Lewis acid sites accelerated the CH activation, which was beneficial to achieve the excellent PDH performance. More importantly, the additionally introduced Cu2+ further modulated the geometric structure and electronic density of Pt, thus effectively improving the anti-sintering ability and alleviating the coke deposition. Benefiting from the interfacial regulation and Lewis active [ZnOH]+ sites, the optimal CuPt/Zn-HPS-1 catalyst exhibited an excellent catalytic PDH performance with the initial propane conversion of 30.4 % and propylene selectivity of 99.0 %. The CuPt/Zn-HPS-1 also demonstrated robust recycling stability in reaction-regeneration cycling test with the smaller deactivation rate constant. This work affords a strategy for improving PDH performance in practical industrial application.

关键词： Interfacial regulation Lewis acid site Propane dehydrogenation Platinum

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