检索结果-南通市图书馆

Adhesive hydrogel interface for enhanced epidermal signal

在线全文

学校读者我要写书评

暂无评论

Science China Technological Sciences 2024年第10期67卷 3136-3151页

作者： SHI XinLei YU Hui TANG ZiQing LU ShaoPing YOU Min YIN HaiYan CHEN Qiang Wenzhou Institute University of Chinese Academy of Sciences Joint Research centre on Medicine The Affiliated Xiangshan Hospital of Wenzhou Medical University

This paper presents a discussion on the method, mechanism, and application of adhesive hydrogel in enhancing epidermal signal,focusing on the interface between hydrogel and skin. Due to its excellent conductivity and high adaptability to the skin, the hydrogel is exceptionally suitable for detecting human-machine interfaces, particularly epidermal electromyographic ***, the detection of the high epidermal signal is hindered by the gap and low adhesion between hydrogel and skin. This paper addresses these challenges by introducing approaches to reduce the interface gap and increase interface adhesion, thereby enabling the development of hydrogel-based epidermal signal detection arrays with enhanced resolution and detection performance.

关键词： adhesive hydrogel hydrogel electrodes epidermal signal interfacial adhesion

A Review on Characteristics, Extraction Methods and Applications of Renewable Insect Protein

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Journal of Renewable Materials 2024年第5期12卷 923-950页

作者： Adelya Khayrova Sergey Lopatin Valery Varlamov Research centre of Biotechnology of the Russian Academy of Sciences Moscow119071Russia

Due to the expected rise in the world population,an increase in the requirements for quality and safety of food and feed is expected,which leads to the growing demand for new sources of sustainable and renewable *** protein is gaining importance as a renewable material for several reasons,reﬂecting its potential contribu-tions to sustainability,resource efﬁciency,and environmental *** insect species are known to be able to efﬁciently convert organic waste into high-value products such as protein,requiring less land and water compared to traditional *** addition,insect farming produces fewer greenhouse gas emissions,contri-buting to mitigating climate *** are considered as a major potential alternative to animal or plant protein due to their many nutritional beneﬁts,including high protein,mineral,and vitamin *** average,the protein content of insects ranges between 35%and 60%dry weight,which exceeds plant protein sources,such as cereal,soybeans,and *** the acceptance of insect protein grows and technologies advance,the food and feed industries continue to explore and expand their applications,offering consumers diverse and sustainable pro-tein *** this review,we discuss the recentﬁndings relating to insect protein focusing on its characteristics,extraction methods,applications,and opportunities along with some trade-offs and uncertainties.

关键词： Circular economy waste utilisation protein insect Hermetia illucens

Pinus sylvestris and Picea abies canopy effects on deposition of air pollutants

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

Journal of Forestry Research 2024年第4期35卷 34-46页

作者： ValentinasČerniauskas Iveta Varnagirytė‑Kabašinsk ienė Valda Araminienė Vidas Stakėnas Lithuanian Research centre for Agriculture and Forestry Instituto Av.1Akademija58344 Kėdainiai distr.Lithuania

Tree canopies influence atmospheric pollutant depositions depending on type,ecosystem characteristics,and local climatic *** study investigated the impact of Pinus sylvestris *** Picea abies(L.)***.,and a mixture of both,on the chemical composition of *** permanent plots within the ICP forest level Ⅱ monitoring network in Lithuania were selected to illustrate typical hemiboreal coniferous *** study analysed(1)the concentrations of NO_(2),NH_(3) and SO_(2) in the ambi-ent air;(2)the concentrations of SO_(4)^(2−),NO_(3)^(−),NH_(4)^(+),Na^(+),K^(+),Ca^(2+) and Cl^(-) in throughfall beneath canopies and in precipitation collected in an adjacent field,and(3)S and total N,Na^(+),K^(+),Ca^(2+)and Cl−depositions in throughfall and precipitation over *** show a signifi-cant decrease in SO_(2) emissions in the ambient air;NO_(2) and NH_(3) emissions also *** canopies reduced the acidity of throughfall,although they led to notably higher concentrations of SO_(4)^(2−),NO_(3)^(−),Na^(+),and particularly K^(+).During the study,low variability in NO_(3)^(-)deposition and a decrease in NH_(4)^(+)deposition *** loads increased by 20-30%when precipitation passed through the *** cumulative deposition of S,Cl,Na,K,Ca,and N was greater under *** than under ***-ever,K deposition in throughfall was considerably lower under *** compared to the *** or mixed *** S depositions declined across all three coniferous ***,there was no specific effect of tree species on throughfall chemistry.

关键词： Precipitation Throughfall Deposition of chemicals Pollution Lithuania

Rational molecular design of efficient yellow-red dendrimer TADF for solution-processed OLEDs: a combined effect of substitution position and strength of the donors

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

Science China Chemistry 2024年第5期67卷 1613-1623页

作者： Changfeng Si Dianming Sun Tomas Matulaitis David B.Cordes Alexandra M.Z.Slawin Eli Zysman-Colman Organic Semiconductor centre EaStCHEM School of ChemistryUniversity of St AndrewsSt AndrewsKY169STUK

The development of high-performance solution-processed red organic light-emitting diodes(OLEDs) remains a challenge,particularly in terms of maintaining efficiency at high luminance. Here, we designed and synthesized four novel orange-red thermally activated delayed fluorescence(TADF) dendrimers that are solution-processable: 2GCz BP, 2DPACz BP, 2FBP2GCz and 2FBP2DPACz. We systematically investigated the effect of substitution position and strength of donors on the optoelectronic properties. The reverse intersystem crossing rate constant(kRISC) of the emitters having donors substituted at positions 11and 12 of the dibenzo[a,c]phenazine(BP) is more than 10-times faster than that of compounds substituted having donors substituted at positions 3 and 6. Compound 2DPACz BP, containing stronger donors than 2GCz BP, exhibits a red-shifted emission and smaller singlet-triplet energy splitting, ΔE_(ST), of 0.01 e V. The solution-processed OLED with 10 wt% 2DPACz BP doped in m CP emitted at 640 nm and showed a maximum external quantum efficiency(EQE_(max)) of 7.8%, which was effectively maintained out to a luminance of 1,000 cd m-2. Such a device's performance at relevant display luminance is among the highest for solution-processed red TADF OLEDs. The efficiency of the devices was improved significantly by using 4Cz IPN as an assistant dopant in a hyperfluorescence(HF) configuration, where the 2DPACz BP HF device shows an EQEmaxof 20.0% at λEL of 605 nm and remains high at 11.8% at a luminance of 1,000 cd m-2, which makes this device one of the highest efficiency orange-to-red HF SP-OLEDs to date.

关键词： thermally activated delayed fluorescence solution-processing red OLEDs dibenzo[a,c]phenazine dendrimers

Plasma-exfoliated g-C_(3)N_(4) with oxygen doping: tailoring photocatalytic properties

在线全文

学校读者我要写书评

暂无评论

Frontiers of Chemical Science and Engineering 2024年第2期18卷 27-39页

作者： Yuxin Li Junxin Guo Rui Han Zhao Wang National Engineering Research centre of Industry Crystallization Technology School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China

Heteroatom doping and defect engineering have been proposed as effective ways to modulate the energy band structure and improve the photocatalytic activity of g-C_(3)N_(4). In this work, ultrathin defective g-C_(3)N_(4) was successfully prepared using cold plasma. Plasma exfoliation reduces the thickness of g-C_(3)N_(4) from 10 nm to 3 nm, while simultaneously introducing a large number of nitrogen defects and oxygen atoms into g-C_(3)N_(4). The amount of doped O was regulated by varying the time and power of the plasma treatment. Due to N vacancies, O atoms formed strong bonds with C atoms, resulting in O doping in g-C_(3)N_(4). The mechanism of plasma treatment involves oxygen etching and gas expansion. Photocatalytic experiments demonstrated that appropriate amount of O doping improved the photocatalytic degradation of rhodamine B compared with pure g-C_(3)N_(4). The introduction of O optimized the energy band structure and photoelectric properties of g-C_(3)N_(4). Active species trapping experiments revealed ·O_(2)^(–) as the main active species during the degradation.

关键词： graphitic carbon nitride cold plasma oxygen doping nitrogen defect visible-light photocatalysis

Recent Progress of Earth Observation Satellites in China

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

空间科学学报 2024年第4期44卷 731-740页

作者： HUANG Shusong QI Wenping ZHANG Shuai XIA Tian WANG Jingqiao ZENG Yong China centre for Resources Satellite Data and Application Beijing 100094

Currently,China has 32 Earth observation satellites in *** satellites can provide various data such as optical,multispectral,infrared,and *** spatial resolution of China Earth observation satellites ranges from low to medium to *** satellites possess the capability to observe across multiple spectral bands,under all weather conditions,and at all *** data of China Earth observation satellites has been widely used in fields such as natural resource detection,environmental monitoring and protection,disaster prevention and reduction,urban planning and mapping,agricultural and forestry surveys,land survey and geological prospecting,and ocean forecasting,achieving huge social *** article introduces the recent progress of Earth observation satellites in China since 2022,especially the satellite operation,data archiving,data distribution and data coverage.

关键词： China Earth Observation Satellites Satellite operation Data archiving Data distribution Data coverage

Multi‑omics integration identifies regulatory factors underlying bovine subclinical mastitis

在线全文

学校读者我要写书评

暂无评论

Journal of Animal Science and Biotechnology 2024年第3期15卷 987-1007页

作者： Mengqi Wang Naisu Yang Mario Laterriere David Gagne Faith Omonijo Eveline M.Ibeagha‑Awemu Agriculture and Agri‑Food Canada Sherbrooke Research and Development CentreSherbrookeQCCanada Department of Animal Science Universite LavalQuebec CityQCCanada Quebec Research and Development centre Agriculture and Agri-Food CanadaQuebec CityQCCanada

Background Mastitis caused by multiple factors remains one of the most common and costly disease of the dairy ***-omics approaches enable the comprehensive investigation of the complex interactions between mul-tiple layers of information to provide a more holistic view of disease ***,this study investigated the genomic and epigenomic signatures and the possible regulatory mechanisms underlying subclinical mastitis by integrating RNA sequencing data(mRNA and lncRNA),small RNA sequencing data(miRNA)and DNA methylation sequencing data of milk somatic cells from 10 healthy cows and 20 cows with naturally occurring subclinical mastitis caused by Staphylococcus aureus or Staphylococcus *** Functional investigation of the data sets through gene set analysis uncovered 3458 biological process GO terms and 170 KEGG pathways with altered activities during subclinical mastitis,provided further insights into subclin-ical mastitis and revealed the involvement of multi-omics signatures in the altered immune responses and impaired mammary gland productivity during subclinical *** abundant genomic and epigenomic signatures with sig-nificant alterations related to subclinical mastitis were observed,including 30,846,2552,1276 and 57 differential methylation haplotype blocks(dMHBs),differentially expressed genes(DEGs),lncRNAs(DELs)and miRNAs(DEMs),***,5 factors presenting the principal variation of differential multi-omics signatures were *** important roles of Factor 1(DEG,DEM and DEL)and Factor 2(dMHB and DEM),in the regulation of immune defense and impaired mammary gland functions during subclinical mastitis were *** of the omics within Factors 1 and 2 explained about 20%of the source of variation in subclinical ***,networks of impor-tant functional gene sets with the involvement of multi-omics signatures were demonstrated,which contributed to a comprehensive view of the possible regu

关键词： Candidate discriminant multi-omics signature Gene Long non-coding RNA Methylation haplotype block MicroRNA Multi-omics integration Natural killer cell mediated cytotoxicity pathway Staphylococcus aureus infection pathway

Selective nano-buckling improves the performance of graphene logic transistors

在线全文

学校读者我要写书评

暂无评论

National Science Review 2024年第2期11卷 95-96页

作者： Tong Yang Ming Yang Department of Applied Physics The Hong Kong Polytechnic University Research centre for Nanoscience and Nanotechnology The Hong Kong Polytechnic University

The massive integration of silicon-based transistors into modern electronic devices greatly increases power consumption and heat generation/dissipation[1]. In this concern, transistors based on atomically-thin graphene that exhibit high electric and thermoelectric conductivities with negligible contact resistance,

关键词：

Search for production of dark fermion candidates in association with heavy neutral gauge boson decaying to dimuon in proton-proton collisions at√s=8 TeV using CMS open data

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 Physics C 2024年第4期48卷 6-13页

作者： Y.Mahmoud H.Abdallah M.T.Hussein S.Elgammal centre for theoretical physics The British University in EgyptEgypt Physics Department Faculty of ScienceCairo UniversityEgypt

In this study,we conducted a search for dark matter using a part of the data recorded by the CMS experiment during run-I of the LHC in 2012 with a center of mass energy of 8 TeV and an integrated luminosity of 11.6 fb−*** data were gathered from the CMS open *** matter,in the framework of the simplified model(mono-Z′),can be produced from proton-proton collisions in association with a new hypothetical gauge boson,Z′.Thus,the search was conducted in the dimuon plus large missing transverse momentum *** benchmark scenario of mono-Z′,which is known as light vector,was used for interpreting the CMS open *** evidence of dark matter was observed,and exclusion limits were set on the masses of dark matter and Z′at 95%confidence level.

关键词： dark matter large hadron collider CMS open data search for new physics dark fermion