检索结果-南通市图书馆

Chinese Chemical Letters 2024年第6期35卷 254-257页

作者： Kangrong Yan Ziqiu Shen Yanchun Huang Benfang Niu Hongzheng chen Chang-Zhi Li State Key Laboratory of Silicon and Advanced Semiconductor Materials Department of Polymer Science and EngineeringZhejiang UniversityHangzhou 310027China

To promote the practices of perovskite photovoltaics,it requires to develop efficient perovskite solar cells(PVSCs)standing long-time operation under the adverse ***,we demonstrate that the tailor-made conjugated polymers as conductive adhesives stabilized the originally redox-reactive heterointerface between perovskite and metal oxide,facilitating the access of efficient and stable inverted *** was revealed that bithiophene and phenyl alternating conjugated polymers with partial glycol chains atop of the metal oxide layer has resulted in effective organic-inorganic hybrid hole transporting bilayers,which allow maintaining efficient hole extraction and transport,meanwhile preventing halide migration to directly contact with the nickel oxide(NiO_(x))*** a result,the corresponding inverted PVSCs with the organic-inorganic hole transporting bilayers have achieved an excellent power conversion efficiency of 23.22%,outperforming 20.65% of bare NiO_(x)-based ***,the encapsulated PVSCs with organic-inorganic bilayers exhibited the excellent photostability with 91% of the initial efficiency after 1000-h one-sun equivalent illumination in ambient ***,this work provides new insights into stabilizing the vulnerable heterointerface for perovskite solar cells.

关键词： Perovskite solar cells Conjugated polymer Hole transporting bilayer Charge extraction Heterointerface degradation

Effect of diflubenzuron on the chitin biosynthesis pathway in Conopomorpha sinensis eggs

在线全文

学校读者我要写书评

暂无评论

Insect Science 2021年第4期28卷 1061-1075页

作者： Qiong Yao Lin-Fa Quan Shu Xu Yi-Zhi Dong Wen-Jing Li bing-Xu chen Guangdong Provincial Key Laboratory of New High Technology for Plant Protection Plant Protection Research InstituteGuangdong Academy of Agricultural SciencesGuangzhou510640China Guangdong Laboratory for Lingnan Modern Agriculture Guangzhou510642China

Conopomorpha sinensis is the dominant borer pest of Litchi chinensis(litchi)and Euphoria longan(longan)in *** of *** is difficult because of its cryptic life habit;thus,an effective ovicide could be *** larvicidal effects of diflubenzuron(DFB)have been documented in many insect pest ***,DFB might be a useful ovicide to control ***,the detailed mode of action of DFB interference with insect molting and egg hatching is ***,we studied alterations in expression of all genes potentially affected by DFB treatment using a transcriptome approach in 2-d-old *** *** reads were assembled to generate 203455 unigenes and 440558 transcripts.A total of 4625 differently expressed genes,which included 2670 up-regulated and 1955 down-regulated unigenes,were *** binding and chitin metabolic processes were among the most significant enriched pathways according to Gene Ontology *** of the genes that encode enzymes involved in the chitin biosynthesis pathway were unaffected,whereas genes that presumably encode cuticle proteins were ***,altered expression patterns of 10 genes involved in the chitin biosynthesis pathway of *** embryos were observed in response to DFB treatment at different time points by quantitative reverse transcription polymerase chain *** also observed abnormal development;there was reduced chitin content and modulated chitin distribution of newly hatched larvae,and altered egg *** findings illustrate an ovicidal effect of DFB on ***,and reveal more molecular consequences of DFB treatment on insects.

关键词： Conopomorpha sinensis chitin diflubenzuron ovicidal effect transcriptomics

Emerging natural hemp seed proteins and their functions for nutraceutical applications

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Food Science and Human Wellness 2023年第4期12卷 929-941页

作者： Haihong chen bing Xu Yi Wang Wei Li Dong He Yan Zhang Xizhen Zhang Xinhui Xing Institute of Biopharmaceutical and Health Engineering Tsinghua Shenzhen International Graduate SchoolShenzhen 518055China Institute of Biomedical Health Technology and Engineering Shenzhen Bay LaboratoryShenzhen 440300China Key Laboratory for Industrial Biocatalysis Ministry of EducationInstitute of Biochemical EngineeringDepartment of Chemical EngineeringTsinghua UniversityBeijing 100084China School of Chemical Engineering and Energy Technology Engineering Research Center of Health Food Design&Nutrition RegulationKey Laboratory of Healthy Food Development and Nutrition Regulation of China National Light IndustryDongguan University of TechnologyDongguan 523808China Hebei Food Inspection and Research Institute Shijiazhuang 050091China College of life Science and Technology Guangxi UniversityNanning 530004China Center for Synthetic and Systems Biology Tsinghua UniversityBeijing 100084China

With changing dietary habits and increasing awareness of the nutraceutical role of dietary foods,the demand for natural plant proteins and interest in non-traditional protein sources in the food industry are *** hemp,belonging to the plant family Cannabaceae,is cultivated for its fibre and edible *** to its nutritional value,it has also been used in the food industry and *** particular,hemp seed proteins have drawn considerable attention in both scientific and industrial fields because of their excellent nutraceutical values,superior digestibility,low allergenicity and diverse techno-functional *** this review,we provide a summary of the current research progress on the extraction and purification processes,physiochemical properties,nutraceutical functions,and applications of hemp seed *** in the application of advanced technologies for hemp seed bioactive peptide mining are also *** review provides up-to-date insights into the nutraceutical values,health benefits,and future applications of this emerging plant source protein.

关键词： Hemp seed protein Extraction Purification Physicochemical properties Nutraceutical functions Food industry

含铝强化奥氏体钢在550℃液态铅铋中的腐蚀行为

在线全文

学校读者我要写书评

暂无评论

物理学报 2024年第2期73卷 242-255页

作者：甘舒匀徐帅李炳生柴林江陈黎明何晓珣汪利刘思捷文春梅李佳奇伍忠政西南科技大学材料与化学学院绵阳621010 西南科技大学环境友好能源国家重点实验室绵阳621010 重庆理工大学材料成型及控制工程系重庆400054

先进铅冷快堆和加速器驱动次临界系统商业化的关键材料问题是结构材料与铅基冷却剂之间的相容性问题,结构钢材料需要在高温液态铅铋共晶中具有优异的抗腐蚀能力.含铝强化奥氏体钢(alumina-forming austenite steel,AFA钢)因其表面可以形... 详细信息

先进铅冷快堆和加速器驱动次临界系统商业化的关键材料问题是结构材料与铅基冷却剂之间的相容性问题,结构钢材料需要在高温液态铅铋共晶中具有优异的抗腐蚀能力.含铝强化奥氏体钢(alumina-forming austenite steel,AFA钢)因其表面可以形成Al_(2)O_(3)膜而在极端环境中具有良好的耐蚀性能.本文研究了降低Ni元素成分和高温预氧化对AFA钢耐铅铋腐蚀性能的影响,利用扫描电子显微镜、能量色散X射线光谱仪、X射线衍射技术,对AFA钢在550℃液态铅铋饱和溶氧条件下腐蚀600 h的氧化层形貌及结构进行表征.结果表明:降低合金中Ni含量和高温预氧化处理都会促进样品表面形成保护性Al_(2)O_(3)氧化膜,进而降低腐蚀层厚度,提升材料耐铅铋腐蚀性能.

关键词：铝强化奥氏体钢氧化层铅铋共晶高温预氧化

维普期刊数据库博看期刊

Unveiling Nb-Ta mineralization processes:Insight from quartz textural and chemical characteristics in the Songshugang deposit,Jiangxi Province,South China

在线全文

学校读者我要写书评

暂无评论

Acta Geochimica 2024年第4期43卷 737-753页

作者： Hengsong Zhang Shaohao Zou Xilian chen Deru Xu Zhilin Wang Yongwen Zhang Hua Wang State Key Laboratory of Nuclear Resources and Environment East China University of TechnologyNanchang 330013JiangxiChina School of Earth Sciences East China University of TechnologyNanchang 330013JiangxiChina Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring Ministry of EducationSchool of Geosciences and Info-PhysicsCentral South UniversityChangsha 410083China Jiangxi Mineral Resources Guarantee and Service Center Nanchang 330025JiangxiChina

The Songshugang deposit is a large Ta-Nb deposit in South China,with Ta-Nb mineralization associated genetically with the granite and pegmatite.A diversity of quartz from topaz-albite granite,quartz-mica pegmatite,quartz-feldspar pegmatite,and quartz-fluorite pegmatite at Songshugang was studied by CL and LA-ICP-MS in order to constrain enrichment mechanisms of Nb and Ta and to find geochemical indicators of quartz for rare metal *** image illuminates a canvas of complexity,the quartz from topaz-albite granite,quartz-mica pegmatite,quartz-feldspar pegmatite,and quartz-fluorite pegmatite,exhibits numerous dark CL streaks,patches,and a series of healed *** textures suggest that the rocks were fractured because of deep crustal pressure,and underwent later hydrothermal metasomatism and quartz *** quartz from quartz-fluorite pegmatite present limited patches or fractures but distinct growth bands,indicating that the melt fluid composition during the formation of quartz at this stage varies greatly and is less aff ected by mechanical *** LA-ICP-MS analysis of quartz shows that there is a positive correlation between Al and Li in the quartz from topaz-albite granite,quartz-mica pegmatite,quartz-feldspar pegmatite,to quartz-fluorite pegmatite,indicating that Al mainly enters the quartz lattice through charge compensation substitution mechanism with ***,our data deviate from the theoretical Li:Al mass ratio of~1:3.89 in quartz,indicating that there may be competition between H^(+)and Li in a water-rich magmatic *** quartz from topaz-albite granite is enriched in K and Na elements,and the quartz from quartz-fluorite pegmatite is enriched in fluorite with a low Ca content in quartz,further elucidating that these rocks were subjected to hydrothermal *** topaz-albitite granite to quartz-fluorite pegmatite,Al,Li and Ge content and Al/Ti,Ge/Ti,Sb/Ti ratios in quartz gradually increased,but

关键词： Nb-Ta deposit Quartz Cathodoluminescence LA-ICP-MS Trace elements Magma-hydrothermal evolution

Characterization,expression dynamics,and potential function of OPA1 for regulation of mitochondrial morphology during spermiogenesis in Phascolosoma esculenta

在线全文

学校读者我要写书评

暂无评论

Journal of Oceanology and Limnology 2024年第1期42卷 187-200页

作者： Xinming GAO Binbin FENG chen DU Congcong HOU Shan JIN Daojun TANG Junquan ZHU Key Laboratory of Applied Marine Biotechnology by the Ministry of Education and Key Laboratory of Marine Biotechnology of Zhejiang Province School of Marine SciencesNingbo UniversityNingbo 315211China College of Ecology Lishui UniversityLishui 323000China

Mitochondria undergo morphological changes during spermatogenesis in some *** mechanism and role of mitochondrial morphology regulation,however,remain somewhat *** this study,we analyzed the molecular characteristics,expression dynamics and subcellular localization of optic atrophy protein 1(OPA1),a mitochondrial fusion and cristae maintenance-related protein,to reveal the possible regulatory mechanisms underlying mitochondrial morphology in Phascolosoma esculenta *** full-length cDNA of the *** opa1 gene(Pe-opa1)is 3743 bp in length and encodes 975 amino *** Pe-OPA1 protein is highly conservative and includes a transmembrane domain,a GTPase domain,two helical bundle domains,and a lipid-interacting *** and protein expression was higher in the coelomic fluid(a site of spermatid development)of male *** and increased first and then decreased from March to ***,their expression during the breeding stage was significantly higher than during the non-breeding stage,suggesting that Pe-OPA1 is involved in *** *** Pe-OPA1 protein was more abundant in components consisting of many spermatids than in components without,indicating that Pe-OPA1 mainly plays a role in the spermatid in coelomic ***,Pe-OPA1 was mainly detected in the spermatid *** experiments showed that the Pe-OPA1 are constitutively expressed and co-localized with mitochondria during spermiogenesis,suggesting its involvement in *** *** results provide evidence for Pe-OPA1's involvement in the regulation of mitochondrial morphology during spermiogenesis.

关键词： optic atrophy protein 1(OPA1) spermiogenesis Phascolosoma esculenta mitochondrial dynamics spermatid

Optical coherence tomography evaluation of retinal nerve fiber layer thickness in non-arteritic anterior ischemic optic neuropathy and primary open angle glaucoma:a systematic review and Meta-analysis

在线全文

学校读者我要写书评

暂无评论

International Journal of Ophthalmology(English edition) 2022年第8期15卷 1370-1380页

作者： Yu-Xin Tong Xin-Yu Zhang Yi He Zong-Lin chen bing Jiang Department of Ophthalmology Second Xiangya HospitalCentral South UniversityChangsha 410011Hunan ProvinceChina Hunan Clinical Research Center of Ophthalmic Disease Changsha 410011Hunan ProvinceChina Department of Neurosurgery Xiangya HospitalCentral South UniversityChangsha 410008Hunan ProvinceChina Department of General Surgery Second Xiangya HospitalCentral South UniversityChangsha 410011Hunan ProvinceChina

AIM:To assess the differences in average and sectoral peripapillary retinal nerve fiber layer(p RNFL)thickness using spectral domain optical coherence tomography(SD-OCT)in patients with non-arteritic anterior ischemic neuropathy(NAION)compared with those with primary open angle glaucoma(POAG).METHODS:A comprehensive literature search of the Pub Med,Cochrane Library,and Embase databases were performed prior to October,*** that compared the p RNFL thickness in NAION eyes with that in POAG eyes with matched mean deviation of the visual fields were *** weighted mean difference(WMD)with 95%confidence interval(CI)was used to pool continuous ***:Ten cross-sectional studies(11 datasets)comprising a total of 625 eyes(278 NAION eyes,347 POAG eyes)were included in the qualitative and quantitative *** pooled results demonstrated that the superior p RNFL was significantly thinner in NAION eyes than in POAG eyes(WMD=-6.40,95%CI:-12.22 to-0.58,P=0.031),whereas the inferior p RNFL was significant thinner in POAG eyes than in NAION eyes(WMD=11.10,95%CI:7.06 to 15.14,P≤0.001).No difference was noted concerning the average,nasal,and temporal p RNFL thickness(average:WMD=1.45,95%CI:-0.75 to 3.66,P=0.196;nasal:WMD=-2.12,95%CI:-4.43 to 0.19,P=0.072;temporal:WMD=-1.24,95%CI:-3.96 to 1.47,P=0.370).CONCLUSION:SD-OCT based evaluation of inferior and superior p RNFL thickness can be potentially utilized to differentiate NAION from POAG,and help to understand the different pathophysiological mechanisms between these two *** longitudinal studies and studies using eight-quadrant or clock-hour classification method are required to validate the obtained findings.

关键词： non-arteritic anterior ischemic optic neuropathy primar y open angle glaucoma optical coherence tomography peripapillary retinal nerve fiber layer thickness

A Single-Event-Transient Hardened Phase Locked Loop for Clock and Data Recovery

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Electronics 2024年第2期33卷 353-361页

作者： Hengzhou YUAN Bin LIANG Hao SANG Weixia XU Yang GUO Xi chen National University of Defense Technology

A radiation-hardened phase-locked loop is proposed for phase interpolator clock and data recovery purposes. A sensitive node-compressed charge pump and multi-node cross coupling voltage-controlled oscillators are proposed in this phase-locked loop with the goal of achieving good jitter performance and improving anti-SET（SET,single-event transient） capability. The root mean square（RMS） jitter of the phase-locked loop is reduced from 3.7 ps to 2.58 ps at 2 GHz, while the laser threshold is improved from 120 p J to 370 p J compared to the unhardened phaselocked loop. The hardened phase-locked loop also does not lose its lock state from linear energy transfers（LETs） of 3.3 to 37.3 Me V·cm2/mg.

关键词： Charge pumps Voltage-controlled oscillators Energy exchange Noise Lasers Jitter Phase locked loops

A Polarization Control Operator for Polarized Electromagnetic Wave Designing

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Electronics 2024年第5期33卷 1253-1260页

作者： Shuo CUI Yaoyao LI Shijian ZHANG Ling chen cheng CAO Donglin SU School of Electronic and Information Engineering Beihang University Shenyuan Honors College Beihang University Research Institute for Frontier Science Beihang University

To describe and control the polarization state of electromagnetic waves, a polarization control operator of the complex vector form is proposed. Distinct from traditional descriptors, the proposed operator employs an angle parameter to configure the polarization state of the polarized wave. By setting the parameter in the proposed operator,the amplitude of the field components can be modified, resulting in changes in the magnitude and direction of the field vector, and thus realizing control of the polarization state of the electromagnetic wave. The physical meaning,orthogonal decomposition, and discrete property of the proposed operator are demonstrated through mathematical derivation. In the simulation examples, the polarization control operator with fixed and time-varying parameters is applied to the circularly polarized wave. The propagation waveform, the trajectory projection and the waveform cross section in different reception directions of the new electromagnetic waves are observed. The simulation results indicate that complex electromagnetic waves with more flexible polarization states can be obtained with the aid of the polarization operator.

关键词： Polarization Simulation Modulation Electromagnetic compatibility Vectors Trajectory Electromagnetics Electromagnetic wave Polarization control operator Polarization descriptor Polarization state MIMO

同方期刊数据库

I-beam Crack Identification Based on Study of Local Flexibility due to Crack

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Mechanical Engineering 2011年第6期24卷 1116-1122页

作者： LI bing chen Xuefeng HE Zhengjia State Key Laboratory for Manufacturing System Xi’an Jiaotong UniversityXi’an 710072China

Local flexibility of crack plays an important role in crack identification of *** methods on local flexibility in a cracked beam with simple geometric crossing sections,such as rectangle,circle,have been made,but there are some difficulties in calculating local flexibility in a cracked beam with complex crossing section,such as pipe and *** this paper,an analytical method to calculate the local flexibility and rotational spring stiffness due to crack in I-beam is *** local flexibility with respect to various crack depths can be calculated by dividing a cracked I-beam into a series of thin *** forward and inverse problems in crack detection of I-beam are *** forward problem comprises the construction of crack model exclusively for crack section and the construction of a numerically I-beam model to gain crack detection *** inverse problem consists of the measurement of modal parameters and the detection of crack *** experiments including measurement of rotational spring stiffness and prediction of cracks in I-beam are *** results based on the current methods indicate that relative error of crack location is less than 3%,while the error of crack depth identification is less than 6%.Crack identification of I-beam is expected to contribute to the development of automated crack detection techniques for railway lines and building skeletons.

关键词： crack identification I-beam local flexibility