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Well-structured 3D channels within GO-based membranes enable ultrafast wastewater treatment

Nano Research 2023年第2期16卷 1826-1834页

作者： huaqiang fu Zhe Wang Peng Li Wei Qian Zixin Zhang Xin Zhao Hao Feng Zhugen Yang Zongkui Kou Daping He School of Materials Science and Engineering Wuhan University of TechnologyWuhan 430070China Hubei Engineering Research Center of RF-Microwave Technology and Application School of ScienceWuhan University of TechnologyWuhan 430070China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China School of Water Energy and EnvironmentCranfield UniversityCranfield MK430ALUK

Graphene oxide(GO)-based membranes have been widely studied for realizing efficient wastewater treatment,due to their easily functionalizeable surfaces and tunable interlayer ***,the irregular structure of water channels within GO-based membrane has largely confined water permeance and prevented the simultaneously improvement of purification ***,we purposely construct the well-structured three-dimensional(3D)water channels featuring regular and negatively-charged properties in the GO/SiO_(2)composite membrane via in situ close-packing assembly of SiO_(2)nanoparticles onto GO *** regular 3D channels can improve the water permeance to a record-high value of 33,431.5±559.9 L·m^(−2)·h−1(LMH)bar−1,which is several-fold higher than those of current state-of-the-art GO-based *** further demonstrate that benefiting from negative charges on both GO and SiO2,these negatively-charged 3D channels enable the charge selectivity well toward dye in wastewater where the rejection for positive-charged and negative-charged dye molecules is 99.6%vs.7.2%,*** 3D channels can also accelerate oil/water(O/W)separation process,in which the O/W permeance and oil rejection can reach 19,589.2±1,189.7 LMH bar−1 and 98.2%,*** present work unveils the positive role of well-structured 3D channels on synchronizing the remarkable improvement of both water permeance and purification performance for highly efficient wastewater treatment.

关键词： graphene oxide membranes wastewater treatment water channels charge-selectivity

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High-performance thermal interface materials enabled by vertical alignment of lightweight and soft graphene foams

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Nano Research 2024年第11期17卷 9293-9299页

作者： huaqiang fu Renqiang Fang Chao Tian Wei Qian Shiya Cao Ziran Zhang Xiaoxi Xu Chuang Yao Zhe Wang Daping He School of Materials Science and Engineering Wuhan University of Technology Wuhan 430070 China Hubei Engineering Research Center of RF-Microwave Technology and Application School of Science Wuhan University of Technology Wuhan 430070 China School of Materials and Microelectronics Wuhan University of Technology Wuhan 430070 China Shanghai Institute of Satellite Engineering Shanghai 201109 China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 China

High-performance thermal interface materials (TIMs) are highly sought after for modern electronics. Two-dimensional (2D) materials as vertical aligned fillers can optimize the out-plane thermal conductivity (k ⊥), but their excessively high content or intrinsic rigidness deteriorate TIMs softness, leading to worsening for thermal contact resistance (R contact). In this study, 2D graphene materials are fabricated into lightweight and soft graphene foams (GFs) with high-orientation, acting as vertical filler frameworks to optimize the k ⊥ and R contact for vertical GF (VGF) TIMs. The VGF-TIM has a high k ⊥ of 47.9 W·m^(−1)·K^(−1) at a low graphene content of 15.5 wt.%. Due to the softness and low filler contents of GFs, the VGF-TIM exhibits a low compressive module (4.2 MPa), demonstrating excellent compressibility. The resulting TIM exhibit a low contact resistance of 24.4 K·mm2·W^(−1), demonstrating 185.1% higher cooling efficiency in practical heat dissipating scenario compared to commercial advanced TIMs. This work provides guidelines for the design of advanced TIMs and their applications in thermal management.

关键词： graphene foam thermal resistance thermal conductivity thermal interface materials

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Size effect enabling additive-free MXene ink with ultrahigh conductivity for screen printing of wireless electronics

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Nano Research 2023年第8期16卷 11012-11017页

作者： Shuaishuai Chen huaqiang fu Yunfa Si Xueyu Liu Zhe Wang Yixue Duan Zixin Zhang Hao Feng Xin Zhao Daping He State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Hubei Engineering Research Center of RF-Microwave Technology and Application Wuhan University of TechnologyWuhan 430070China School of Science Wuhan University of TechnologyWuhan 430070China

Facile preparation of additive-free inks with both high viscosity and high conductivity is critical for scalable screen printing of wireless electronics,yet very *** materials exhibit excellent conductivity and hydrophilicity,showing great potential in the field of additive-free inks for screen ***,we demonstrate the synthesis of additive-free two-dimensional(2D)titanium carbide MXene inks,and realize screen-printed MXene wireless electronics for the first *** viscosity of MXene ink is solely regulated by tuning the size of MXene nanosheet without any additives,hence rendering the printed MXene film extremely high conductivity of 1.67×10^(5) S/m and fine printing resolution down to 0.05 mm on various flexible ***,radio frequency identification(RFID)tags fabricated using the additive-free MXene ink via screen printing exhibit stable antenna reading performance and superb *** article,thus offers a new route for the efficient,low-cost and pollution-free manufacture of printable electronics based on additive-free MXene inks.

关键词： size effect additive-free MXene ink screen printing wireless electronics radio frequency identification(RFID)

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Scalable fabrication of graphene-assembled multifunctional electrode with efficient electrochemical detection of dopamine and glucose

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Nano Research 2023年第5期16卷 6361-6368页

作者： Xiaodong Ji Xin Zhao Zixin Zhang Yunfa Si Wei Qian huaqiang fu Zibo Chen Zhe Wang Huihui Jin Zhugen Yang Daping He State Key Laboratory of Silicate Materials for Architectures Wuhan University of TechnologyWuhan 430070China Hubei Engineering Research Center of RF-Microwave Technology and Application Wuhan University of TechnologyWuhan 430070China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China School of Information Engineering Wuhan University of TechnologyWuhan 430070China School of Water Energy and EnvironmentCranfield UniversityMilton KeynesMK430ALUK

Conventional glassy carbon electrodes(GCE)cannot meet the requirements of future electrodes for wider use due to low conductivity,high cost,non-portability,lack of ***,cost-effective and wearable electrode enabling rapid and versatile molecule detection is becoming important,especially with the ever-increasing demand for health monitoring and point-ofcare *** is considered as an ideal electrode due to its excellent physicochemical ***,we prepare graphene film with ultra-high conductivity and customize the 3-electrode system via a facile and highly controllable laser engraving *** from the ultra-high conductivity(5.65×10^(5)S·m^(−1)),the 3-electrode system can be used as multifunctional electrode for direct detection of dopamine(DA)and enzyme-based detection of glucose without further metal *** dynamic ranges from 1–200μM to 0.5–8.0 mM were observed for DA and glucose,respectively,with a limit of detection(LOD)of 0.6μM and 0.41 ***,the excellent target detection capability caused by the ultra-high conductivity and ease modification of graphene films,together with their superb mechanical properties and ease of mass-produced,provides clear potential not only for replacing GCE for various electrochemical studies but also for the development of portable and highperformance electrochemical wearable medical devices.

关键词： graphene film ultra-high conductivity multifunctional electrode point-of-care diagnosis wearable medical devices

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Use of Near Infrared Spectroscopy to Measure Mechanical Properties of Solid Wood

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Chinese Forestry Science and Technology 2007年第2期6卷 14-19页

作者： YU huaqiang ZHAO Rongjun fu Feng FEI Benhua JIANG Zehui Research Institute of Wood Industry Chinese Academy of Forestry Beijing 100091 P.R. China

The visible and near infrared(NIR)(350-2500 nm)spectra and the MOE of 438 small clear wood samples from Chinese fir,eucalyptus and poplar 72 were *** partial least-square(PLS)modeling,the NIR spectra could be used to predict MOE and MOR of the clear-wood samples from Chinese fir and eucalyptus solid *** spectra could only be used to predict MOE but not MOR of poplar clear-wood *** the exception of MOR of poplar clear-wood samples,the correlations between NIR and the mechanical properties are very strong,and the calibration and test correlation coefficients are both above 0.80.

关键词： Chinese fir ( Cunninghamia lanceolata) eucalyptus (Eucalyptus urophylla × E. grandis) poplar 72 (Populus × euramericana cv. I - 72/58) MOE MOR NIR partial least-square

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链式红枣去核机的设计及试验

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农业工程学报 2011年第5期27卷 127-130页

作者：马朝锋刘凯周春国付华强西安理工大学机械与精密仪器工程学院西安710048 东方汽轮机有限公司风电事业部研发中心德阳618014

为解决现有红枣去核机普遍存在的缺陷,如机构复杂、定位不准确、适应能力低及枣核残留比例高等问题。在对现有红枣去核机机构和结构综合分析的基础上,该文提出了一种新型的红枣去核机机构,给出了排队、上料等机构,对主传动系统和关键执... 详细信息

为解决现有红枣去核机普遍存在的缺陷,如机构复杂、定位不准确、适应能力低及枣核残留比例高等问题。在对现有红枣去核机机构和结构综合分析的基础上,该文提出了一种新型的红枣去核机机构,给出了排队、上料等机构,对主传动系统和关键执行机构的参数进行了计算。最后制作了样机并进行了试验,结果表明本机器能适应直径在10～24mm范围的红枣,具有不用预先分拣,适应性强,枣核残留比例小于2%等优点。

关键词：农产品机具试验红枣去核摆动凸轮槽轮机构连杆机构

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Enhancing weather predictions: Initial condition sensitivity and error dynamics in data assimilation

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Science China Earth Sciences 2025年第2期68卷 649-652页

作者： Weiwei fu Department of Atmospheric and Oceanic Sciences Fudan UniversityShanghai 200438China Key Laboratory of Polar Atmosphere-ocean-ice System for Weather and Climate Ministry of EducationFudan UniversityShanghai 200438China IRDR International Center of Excellence on Risk Interconnectivity and Governance on Weather Fudan UniversityShanghai 200438China

Data Assimilation(DA) plays a crucial role in modern numerical forecasting(Kalnay, 2002). It has been demonstrated that incorporating real-time observational data into forecast models significantly enhances the accuracy of both shortterm weather forecasts(Bauer et al., 2015;Bannister, 2017)and long-term climate predictions(Karspeck et al., 2013;Mochizuki et al., 2016).

关键词： weather assimilation forecasting

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白石窑水电厂4#机组定子线圈击穿事故的分析及处理

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电工技术 2005年第11期 74-75页

作者：傅华强广东省英德市白石窑水电厂广东英德513000

0引言白石窑水电厂装机容量为72MW,采用4台单机容量为18MW灯泡贯流机组,于1997年4月至1999年2月先后投产发电,多年平均发电量为2.915亿KW·h.

关键词：白石窑水电厂灯泡贯流机组分析及处理击穿事故定子线圈装机容量单机容量投产发电发电量

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Reducing the measurement errors in nonadiabatic holonomic quantum computers

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Science China(Physics,Mechanics & Astronomy) 2025年第1期68卷 60-66页

作者： Guo-fu Xu Department of Physics Shandong UniversityJinan 250100China

Nonadiabatic holonomic quantum computers serve as the physical platform for nonadiabatic holonomic quantum *** quantum computation has entered the noisy intermediate-scale era,building accurate intermediate-scale nonadiabatic holo-nomic quantum computers is clearly *** that measurements are the sole means of extracting information,they play an indispensable role in nonadiabatic holonomic quantum ***,developing methods to reduce measurement errors in nonadiabatic holonomic quantum computers is of great ***,while much attention has been given to the research on nonadiabatic holonomic gates,the research on reducing measurement errors in nonadiabatic holonomic quantum computers is severely *** this study,we propose a measurement error reduction method tailored for intermediate-scale nonadiabatic holonomic quantum *** reason we say this is because our method can not only reduce the measurement errors in the computer but also be useful in mitigating errors originating from nonadiabatic holonomic *** these features,our method significantly advances the construction of accurate intermediate-scale nonadiabatic holonomic quantum computers.

关键词： quantum holonomy quantum computation measurement errors

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高中语文生成性教学的实践探索

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语文教学通讯 2022年第4期1186卷 26-28页

作者：傅华强湖北省教育科学研究院湖北武汉430071

生成是相对于预设而言的,尊重课堂上的生成,实际上就是尊重学生学习的主体性。在这样的背景之下,“生成性教学”的概念应运而生。生成性教学是一种新的教学形态,其对于传统教学而言是一个有益的补充。在高中语文教学中实施生成性教学,... 详细信息

生成是相对于预设而言的,尊重课堂上的生成,实际上就是尊重学生学习的主体性。在这样的背景之下,“生成性教学”的概念应运而生。生成性教学是一种新的教学形态,其对于传统教学而言是一个有益的补充。在高中语文教学中实施生成性教学,要迫切解决两个基本问题:一是对生成性教学有准确的理解;二是对生成性教学的实施有清晰的思路。结合核心素养发展的需要,可以对当下高中语文生成性教学建立这样的认识:尊重学生在学习过程中的生成性思维,视课堂上的生成为有益的教学资源,结合语文学科核心素养的要素,把握好课堂生成的程度,并且用语文学科核心素养组成要素的发展程度来评价生成性教学。无论是立德树人,还是语文学科核心素养,都是教学的目标。在当下的高中语文教学中,继续实施生成性教学,对于这些目标的达成是有重大意义的。

关键词：高中语文生成性教学实践探索

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