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Permeable carbon fiber based thermoelectric film with exceptional EMI shielding performance and sensor capabilities

Journal of Advanced Ceramics 2024年第8期13卷 1119-1131页

作者： Junjie Zhu Chuan Sun w.nlin Feng Mengran Chen Peng-An Zong chunlei w.n College of Materials Science and Engineering Nanjing Tech UniversityNanjing 211800China nationai Innovation Institute of Defense Technology Academy of Military Sciences of the People's Liberation Army of ChinaBeijing 100089China Institute of nuclear Physics and Chemistry Innovation Research Team for Advanced CeramicsChina Academy of Engineering PhysicsMianyang 621900China State Key Laboratory of new Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing 100084China

Thermoelectric(TE)technologies offer a promising approach for directly converting skin heat into electricity for wearable *** p-type Sb2Tes and n-type BizTes as top-performing materials at room temperature,their rigid inorganic structure,with ultralow moisture permeability,poses challenges in warm and humid conditions,fostering bacterial growth and potential skin *** address this issue,we developed a cross-linked core-shell structure by electrodepositing Sb_(2)Te_(3)(Bi_(2)Te_(3))onto carbon fiber(CF).This architecture significantly improved the electrical conductivity and the Seebeck coefficient,resulting in a remarkable 300-fold increase in the power factor compared to that of pure *** CF/Sb_(2)Te_(3) and CF/Bi2Te films demonstrated optimal power factors of 450 and 121μw·m^(-1)·K^(-2),***,the fabricated films exhibited outstanding moisture permeability,over 3000 g·m^(-2)·d^(-1),exceptional electromagnetic interference shielding efficiency approaching 93 dB,and versatility as sensors for language assistance and respiratory *** attributes underline their broad applicability,emphasizing their suitability for human health protection in diverse scenarios.

关键词： thermoelectric(TE) carbon fiber(CF) Bi_(2)Te_(3) electrodeposition moisture permeability electromagnetic interference shielding

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A Distributed Computing Algorithm for Electricity Carbon Emission Flow and Carbon Emission Intensity

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Protection and Control of Modern Power Systems 2024年第2期9卷 138-146页

作者： Xingping wu wei Yang ning Zhang chunlei Zhou Jinwei Song Chongqing Kang Big Data Center of China network Chinese Society of Electrical Engineering State network Big Data Center Department of Electrical Engineering Tsinghua UniversityBeijingChina 不详 Big Data Center State Grid Corporation of ChinaBeijing 100052China Department of Electrical Engi-neering Tsinghua UniversityBeijingChina

The calculation of the indirect carbon emis-sion is essential for power system policy making,carbon market development,and power grid *** em-bedded carbon emissions of the electricity system are commonly calculated by carbon emission flow ***,the calculation procedure is time-consuming,especially for a country with 500-1000 thousand nodes,making it challenging to obtain nationwide carbon emis-sions intensity ***,the calculation procedure requires to gather all the grid data with high classified levels from different power grid companies,which can prevent data sharing and cooperation among different *** paper proposes a distributed computing algorithm for indirect carbon emission that can reduce the time consumption and provide privacy *** core idea is to utilize the sparsity of the nodes’flow matrix of the nationwide grid to partition the computing procedure into parallel sub-procedures exe-cuted in multiple *** flow and structure data of the regional grid are transformed irreversibly for pri-vacy protection,when transmitted between terminals.A 1-master-and-n-slave layout is adopted to verify the *** algorithm is suitable for large grid compa-nies with headquarter and branches in provinces,such as the State Grid Corporation of China.

关键词： Carbon emission flow cooperative computing carbon emission intensity matrix block par-tition power flow tracing parallel computing privacy protection

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ALKBH5 gene polymorphisms and risk of neuroblastoma in Chinese children from Jiangsu Province

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Cancer Innovation 2024年第2期3卷 72-79页

作者： Qian Guan Xinxin Zhang Jiabin Liu chunlei Zhou Jinhong Zhu Haiyan wu Zhenjian Zhuo Jing He Department of Pediatric Surgery Guangzhou Institute of PediatricsGuangdong Provincial Key Laboratory of Research in Structural Birth Defect DiseaseGuangdong Provincial Clinical Research Center for Child HealthGuangzhou Women and Children's Medical CenterGuangzhou Medical UniversityGuangzhouGuangdongChina Department of Pathology Children's Hospital of Nanjing Medical UniversityNanjingJiangsuChina Department of Clinical Laboratory BiobankHarbin Medical University Cancer HospitalHarbinHeilongjiangChina Laboratory Animal Center School of Chemical Biology and BiotechnologyPeking University Shenzhen Graduate SchoolShenzhenGuangdongChina

Background:neuroblastoma is one of the most common extracranial malignant solid tumors in *** homolog 5(ALKBH5)is an RnA n6-methyladenosine(m6A)demethylase that plays a critical role in tumorigenesis and *** assessed the association between single nucleotide polymorphisms(SnPs)in ALKBH5 and the risk of neuroblastoma in a case-control study including 402 patients and 473 non-cancer ***:Genotyping was determined by the TaqMan *** association between ALKBH5 polymorphisms(rs1378602 and rs8400)and the risk of neuroblastoma was evaluated using the odds ratio(OR)and 95%confidence interval(CI).Results:we found no strong association of ALKBH5 rs1378602 and rs8400 with neuroblastoma *** stratification analysis by age,sex,primary site,and clinical stage showed that the rs1378602 AG/AA genotype was associated with a lower risk of neuroblastoma in males(adjusted OR=0.58,95%CI=0.35–0.97,p=0.036)and children with retroperitoneal neuroblastoma(adjusted OR=0.58,95%CI=0.34–0.98,p=0.040).Conclusions:ALKBH5 SnPs do not seem to be associated with neuroblastoma *** studies are required to confirm this negative result and reveal the relationship between gene polymorphisms of the m6A modifier ALKBH5 and neuroblastoma.

关键词： ALKBH5 neuroblastoma polymorphism susceptibility

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m^(6)A reader YTHDF1 promotes cardiac fibrosis by enhancing AXL translation

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Frontiers of Medicine 2024年第3期18卷 499-515页

作者： Han wu weitao Jiang Ping Pang wei Si Xue Kong Xinyue Zhang Yuting Xiong chunlei w.ng Feng Zhang Jinglun Song Yang Yang Linghua Zeng Kuiwu Liu Yingqiong Jia Zhuo w.ng Jiaming Ju Hongtao Diao Yu Bian Baofeng Yang Department of Pharmacology(national Key Laboratory of Frigid Zone Cardiovascular Diseases the State-Province Key Laboratories of Biomedicine-Pharmaceutics of ChinaKey Laboratory of Cardiovascular ResearchMinistry of Education)College of PharmacyHarbin Medical UniversityHarbin150081China

Cardiac fibrosis caused by ventricular remodeling and dysfunction such as post-myocardial infarction(MI)can lead to heart *** n6-methyladenosine(m^(6)A)methylation has been shown to play a pivotal role in the occurrence and development of many *** investigating the biological function of the m^(6)A reader YTHDF1 in cardiac fibrosis,adeno-associated virus 9 was used to knock down or overexpress the YTHDF1 gene in mouse hearts,and MI surgery in vivo and transforming growth factor-β(TGF-β)-activated cardiac fibroblasts in vitro were performed to establish fibrosis *** results demonstrated that silencing YTHDF1 in mouse hearts can significantly restore impaired cardiac function and attenuate myocardial fibrosis,whereas YTHDF1 overexpression could further enhance cardiac dysfunction and aggravate the occurrence of ventricular pathological remodeling and fibrotic ***,zinc finger BED-type containing 6 mediated the transcriptional function of the YTHDF1 gene ***1 augmented AXL translation and activated the TGF-β-Smad2/3 signaling pathway,thereby aggravating the occurrence and development of cardiac dysfunction and myocardial ***,our data indicated that YTHDF1 was involved in activation,proliferation,and migration to participate in cardiac fibrosis in *** results revealed that YTHDF1 could serve as a potential therapeutic target for myocardial fibrosis.

关键词： cardiac fibrosis YTHDF1 AXL ZBED6 heart failure

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西达本胺联合传统药物治疗复发/难治性皮肤T细胞淋巴瘤2例

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中国皮肤性病学杂志 2024年第9期38卷 1000-1006页

作者：王冠钰王艺萌张春雷北京大学第三医院皮肤科北京100191

目的观察西达本胺联合传统药物治疗复发/难治性皮肤T细胞淋巴瘤的效果。方法采用西达本胺治疗原有系统治疗失败、出现疾病复发或治疗抵抗的皮肤T细胞淋巴瘤,观察其疗效和不良反应。结果纳入的2例患者分别诊断为晚期蕈样肉芽肿(T3n1M0B0,... 详细信息

目的观察西达本胺联合传统药物治疗复发/难治性皮肤T细胞淋巴瘤的效果。方法采用西达本胺治疗原有系统治疗失败、出现疾病复发或治疗抵抗的皮肤T细胞淋巴瘤,观察其疗效和不良反应。结果纳入的2例患者分别诊断为晚期蕈样肉芽肿(T3n1M0B0,ⅡB期)及原发性皮肤外周T细胞淋巴瘤,非特指型(T3bn0M0)。在采用西达本胺联合传统药物的治疗方案后,诊断为蕈样肉芽肿的患者临床获得完全缓解,并保持疾病稳定至少1年,不良反应为中性粒细胞降低及血小板降低;诊断为原发性皮肤外周T细胞淋巴瘤的患者获得部分缓解,未见明显不良反应。结论西达本胺对复发/难治性皮肤T细胞淋巴瘤患者具有良好疗效,不良反应以血液学不良反应为主。

关键词：皮肤T细胞淋巴瘤复发/难治性西达本胺蕈样肉芽肿原发性皮肤外周T细胞淋巴瘤,非特指型

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基于多传感器融合的轨检车构架位姿测量方法

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计量学报 2024年第1期45卷 18-23页

作者：张欣韩志陈春雷罗哉江文松中国计量大学计量测试工程学院浙江杭州310018 中国铁道科学研究院集团有限公司基础设施检测研究所北京100018

针对轨道检查车构架运动会影响轨道几何检测系统测量精度的问题,提出一种基于多传感器融合的构架位姿测量方法。该方法利用加速度传感器和双轴倾角传感器采集构架位姿原始信号,通过构架中心位姿解算方法将多个传感器采集的原始信号进行... 详细信息

针对轨道检查车构架运动会影响轨道几何检测系统测量精度的问题,提出一种基于多传感器融合的构架位姿测量方法。该方法利用加速度传感器和双轴倾角传感器采集构架位姿原始信号,通过构架中心位姿解算方法将多个传感器采集的原始信号进行融合解算,获取构架几何中心位姿。为了验证其准确性和适应性,利用该方法分别在实验室和国家铁道试验中心标定试验线上进行了验证试验和在轨试验,结果表明,以第95%分位数作为评估标准,该方法测量的构架中心横向、垂向位移、侧滚角和摇头角与标准值的误差分别小于0.88 mm、0.44 mm、0.07°、0.04°,该方法与轨检系统测得数据的差异分别小于0.99 mm、0.73 mm、0.08°。构架位姿测量方法可以准确测量轨检车构架位姿,运用于运营车辆,可辅助判别轨道病害,提高轨道检测效率。

关键词：位姿测量轨检车构架多传感器融合轨道几何不平顺

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Ground state solutions for a non-autonomous nonlinear Schrodinger-KdV system

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Frontiers of Mathematics in China 2020年第5期15卷 851-866页

作者： w.njing BI chunlei TAnG School of Mathematics and Statistics Southwest UniversityChongqing 400715China

we study the Schrodinger-KdV system{-△u+λ1(x)u=u^3+βuv,u∈H^1(R^n),-△v+λ2(x)v=1/2v^2+β/2u^2,v∈H^1(R^n),where n=1,2,3,λi(x)∈C(R^n,R),lim|x|→∞λi(x)=λi(∞),and λi(x)≤λi(∞),i=1,2,a.e.x∈R^*** obtain the e... 详细信息

关键词： Schrodinger-KdV system variational methods nehari manifold ground state solutions

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Ag_(3)PO_(4)/BiOI复合材料的制备及其光催化性能研究

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化工新型材料 2024年第9期52卷 195-200页

作者：唐建可马春蕾薛彦峰太原工业学院化学与化工系太原030008

采用简易研磨法将Ag_(3)PO_(4)颗粒负载在纳米片组装的BiOI微球表面,制备出p-n型Ag_(3)PO_(4)/BiOI异质结光催化剂。利用不同表征手段对Ag_(3)PO_(4)/BiOI复合材料的物相、形貌、化学组成和光学吸收特性进行了分析,并探索了其在可见光... 详细信息

采用简易研磨法将Ag_(3)PO_(4)颗粒负载在纳米片组装的BiOI微球表面,制备出p-n型Ag_(3)PO_(4)/BiOI异质结光催化剂。利用不同表征手段对Ag_(3)PO_(4)/BiOI复合材料的物相、形貌、化学组成和光学吸收特性进行了分析,并探索了其在可见光下光降解盐酸金霉素(CTC)的性能。结果表明:AB-2(Ag_(3)PO_(4)与BiOI质量比为1∶2)表现出最高的光降解CTC活性,可见光照射75min后AB-2对CTC(20mg/L)的去除率为79.2%,高于单一Ag_(3)PO_(4)与BiOI光催化剂。此外,AB-2光催化剂在循环使用5次后对CTC的去除率为70.3%,具有较好的重复使用性。p型BiOI和n型Ag_(3)PO_(4)构成p-n型异质结结构,促进了光生电子和空穴的有效分离,进而降低了电子-空穴对的复合效率,提升了Ag_(3)PO_(4)/BiOI复合材料的光催化活性。

关键词： Ag_(3)PO_(4) BiOI 光催化降解盐酸金霉素

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A“Sequential Design of Simulations”approach for exploiting and calibrating discrete element simulations of cohesive powders

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Frontiers of Chemical Science and Engineering 2022年第6期16卷 874-885页

作者： Xizhong Chen chunlei Pei James A.Elliott Department of Materials Science and Metallurgy University of CambridgeCambridge CB3 OFSUK Process and Chemical Engineering School of EngineeringUniversity College CorkCork T12 K8AFIreland Department of Chemical and Biological Engineering The University of SheffieldSheffield S102TNUK Key Laboratory for Green Chemical Technology of Ministry of Education School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China

The flow behaviours of cohesive particles in the ring shear test were simulated and examined using discrete element method guided by a design of experiments methodology.A full factorial design was used as a screening design to reveal the effects of material properties of *** augmented design extending the screening design to a response surface design was constructed to establish the relations between macroscopic shear stresses and particle *** is found that the powder flow in the shear cell can be classified into four *** stress is found to be sensitive to particle friction coefficient,surface energy and Young’s modulus.A considerable fluctuation of shear stress is observed in high friction and low cohesion *** high cohesion regime,Young’s modulus appears to have a more significant effect on the shear stress at the point of incipient flow than the shear stress during the pre-shear *** predictions from response surface designs were validated and compared with shear stresses measured from the Schulze ring shear *** is found that simulations and experiments showed excellent agreement under a variety of consolidation conditions,which verifies the advantages and feasibility of using the proposed“Sequential Design of Simulations”approach.

关键词： discrete element method cohesive materials parameter calibration ring shear cell design of experiments

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木薯淀粉-丙烯酰胺接枝共聚物的结构与性能

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林业工程学报 2024年第4期9卷 79-86页

作者：蔡海鹏汪进文董春雷朱刚杜官本邓书端西南林业大学云南省木材胶黏剂及胶合制品重点实验室昆明650224

为消除传统人造板的甲醛释放对人体健康和环境造成的危害,将木薯淀粉(CS)降解后与丙烯酰胺(AM)接枝共聚,制备木薯淀粉-丙烯酰胺接枝共聚物(CS-AAGC)胶黏剂,并对其外观、黏度、固含量等基本性能进行测定。通过傅里叶变换红外光谱(FT-IR)... 详细信息

为消除传统人造板的甲醛释放对人体健康和环境造成的危害,将木薯淀粉(CS)降解后与丙烯酰胺(AM)接枝共聚,制备木薯淀粉-丙烯酰胺接枝共聚物(CS-AAGC)胶黏剂,并对其外观、黏度、固含量等基本性能进行测定。通过傅里叶变换红外光谱(FT-IR)、核磁共振碳谱(13C nMR)及X射线光电子能谱(XPS)对其结构进行分析,采用差式扫描量热分析(DSC)及扫描电镜(SEM)分析其固化性能,探究木薯淀粉与丙烯酰胺(AM)的物质的量比对木薯淀粉-丙烯酰胺接枝共聚物胶黏剂胶合强度的影响。结果表明:合成的木薯淀粉-丙烯酰胺接枝共聚物胶黏剂外观为乳白色均一液体,随着丙烯酰胺添加量的增加,共聚物的黏度也随之增加;丙烯酰胺上的双键与淀粉中的羟基发生了反应;当n(淀粉基本单元)∶n(AM)=1∶5时,相应的木薯淀粉-丙烯酰胺接枝共聚物的胶合性能相对最好,以其制备的胶合板干状剪切强度为1.46 MPa、(23±2)℃冷水浸泡24 h后的剪切强度为0.87 MPa、(63±1)℃热水浸泡3 h后的剪切强度为0.84 MPa,符合GB/T 9846—2015《普通胶合板》对Ⅱ类胶合板的要求。

关键词：木薯淀粉丙烯酰胺木材胶黏剂接枝共聚胶合板

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