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Nano Research 2025年第1期18卷 236-248页

作者： Yuchen Wang Kai Rong Shanlei Chang Youxing Fang Shaojun Dong State Key Laboratory of Electroanalytical Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China school of applied Chemistry and Engineering University of Science and Technology of ChinaHefei 230026China College of Chemistry Jilin UniversityChangchun 130012China

The catalytic conversion of glucose to high valueadded platform chemical 5-hydroxymethylfurfural(HMF)is a promising biorefinery process,and alumina-boria catalysts are considered to be green and mild solid acid catalysts for this catalytic ***,compared to the common synthesis methods with complicated steps,we reported a simple and efficient strategy to prepare B_(2)O_(3)-Al_(2)O_(3)nanocomposites by calcining cost-effective glucose-urea deep eutectic solvent(DES)solution containing the *** prepared B_(2)O_(3)-Al_(2)O_(3)nanocomposites exhibited an open three-dimensional skeleton and two-dimensional porous lamellar substructure,endowing them with a high specific surface area(228.27 m2/g).The introduction of boron changed the ratios of different aluminum species(AlⅣ,AlⅤ,and AlⅥ)and borate species(BO3 and BO4),thus further affecting the acidity and the types of acid sites of the *** prepared B_(2)O_(3)-Al_(2)O_(3)bifunctional acid catalysts possessing abundant Lewis acid sites and adjustable Brønsted acid sites showed complete glucose conversion and 55.38%of HMF yield under the optimum *** study proposed a concise method to synthesize alumina-boria solid acid catalysts assisted by glucose-urea *** hope to extend the application and prospect of this efficient and simple synthesis strategy.

关键词： 5-hydroxymethylfurfural(HMF) deep eutectic solvent glucose alumina-boria acid catalyst

Endogenous/exogenous dual stimulation“ROS engineering”amplification combined with autophagy-augmented for efficient ferroptosis therapy

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Nano Research 2025年第1期18卷 597-606页

作者： Pengye Du Pengpeng Lei Yuan Liang Ran An Yi Wei Shuyu Liu Jianhao Zheng Hongjie Zhang State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China school of applied Chemistry and Engineering University of Science and Technology of ChinaHefei 230026China Department of Chemistry Tsinghua UniversityBeijing 100084China

“Reactive oxygen species(ROS)engineering”is one of the most promising anti-tumor treatments developed in recent *** explosion of ROS will cause oxidative stress,thereby inducing tumor cell ***,ROS accumulation in tumor cells is eliminated by endogenous cellular self-regulation *** this work,a kind of endogenous/exogenous dual stimulation nanoagent noted as UMZC is *** reaction occurs between NH_(2)-MIL-88B(Fe)contained in UMZC and the overexpression of endogenous H_(2)O_(2)to generate ROS,amplified by endogenous H_(2)S of colon tumor *** addition,NH_(2)-MIL-88B(Fe)also functions to deplete glutathione(GSH)for stopping it from consuming *** nanoparticles at the core of UMZC convert near-infrared into visible light,which excites zinc phthalocyanine to initiate the photochemical reaction that generates more ROS,thus alleviating the lack of tissue penetration depth for visible *** agonist chitosan oligosaccharides induce enhancement of cellular autophagy for disrupting cellular metabolic stress and the resistance to oxidative stress of tumor cells,allowing“ROS engineering”to fully exert anti-tumor *** of ROS generation,GSH depletion,and induced cellular autophagy caused by nanoagents have promoting effects on the occurrence of ***,the nanoagents show the ability to effectively treat colon tumors.

关键词： reactive oxygen species(ROS)engineering upconversion nanoparticles cellular autophagy ferroptosis tumor therapy

Carbon-supported CeNCl as an efficient catalyst for CO_(2)cycloaddition

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Nano Research 2025年第1期18卷 157-163页

作者： Li Liu Lingling Zhang Xiang Chu Baokang Geng Huilin Wang Zongxiang Li Xiao Wang Shuyan Song Hongjie Zhang school of applied Chemistry and Engineering University of Science and Technology of ChinaHefei 230026China State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China Sinocare Incorporation Changsha 410221China Department of Chemistry Tsinghua UniversityBeijing 100084China

The cycloaddition reaction of CO_(2)with epoxide not only effectively reduces the concentration of CO_(2)in the atmosphere,but also has excellent industrial application value and up to 100%atom utilization,but there are difficulties in separation and recovery of traditional homogeneous catalysts,harsh reaction conditions of traditional heterogeneous catalysts,and activation of CO_(2)*** this paper,an easily synthesized heterogeneous catalyst CeNCl/C was used to catalyze the cycloaddition reaction of CO_(2)with styrene oxide,with a high yield of 92.7%,a high selectivity of 96.7%,a turnover numbers(TON)value of 349,and a good stability demonstrated in six cycle tests(equivalent to 216 h of testing).Through comprehensive studies,it was shown that CeNCl/C contains Lewis acid-base centers as active centers,which can effectively reduce the energy barrier required for ring opening of the reaction substrate,enhance the adsorption and activation of CO_(2),and promote the formation of intermediates,which led to the acquisition of excellent catalytic activity.

关键词： CO_(2)cycloaddition heterogeneous catalysis CeNCl Lewis acid/base

Petrographic and Geochemicial Characteristics of the Kiziloren Formation (Upper Triassic-Lower Jurassic) in the Akpinar (Konya,Turkey) Area

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Acta Geologica Sinica(English Edition) 2012年第6期86卷 1455-1470页

作者： Ali Müjdat ÖZKAN Ayse ELMAS Department of Geological Engineering Selcuk University graduate school of natural and applied sciences Selcuk University

This paper describes the occurrence of dolomite and the mechanism of dolomitization of the Upper Triassic-Lower Jurassic Klzlloren Formation in the autochthonous Bolkardagl unit of the middle Taurus Mountains in south western Turkey. Dolomites were analyzed for geochemical, isotopic and crystallographic variation. Dolomites occur as a replacement of precursor carbonate and cement. The dolomite crystals range from 〈10 to -1000 ltm existing as both replacements and cements. Sr concentrations range between 84 and 156 ppm, and the molar Sr/Ca ratios of dolomitizing fluids are estimated to range between 0.0066 to 0.013 ratios. Dolomites are Ca-rich （with average CaCO3 and MgCO3 equal to 56.43 and 43.57 mol%, respectively） and they are non-stoichiometric, with an average Sr=ll6 ppm, Na=286 ppm, Mn=81 ppm, Fe=1329 ppm, and ~lSO and ~lac ranges from -0.6%o to -6.1% Pee Dee Belemnite [PDB], and ＋1.2 to ＋3.9%0 PDB. The North American Shale Composition [NASC]- normalized rare earth element （REE） values of the both limestone and dolomite sample groups show very similar REE patterns characterized by small positive Eu （mean=l.32 and mean=l.42, respectively） and slightly or considerably negative Ce （mean=0.61 and mean=0.72, respectively） anomalies and a clear depletion in all REE species. The Klzlloren Formation dolomites have been formed as early diagenetic from mixing zone fluids at the tidal-subtidal environment and at the late diagenetic from basinal brines at the shallow-deep burial depths.

关键词： dolomite Klzdoren Akplnar peritidal petrography geochemistry

Clustering-Aided Supervised Malware Detection with Specialized Classifiers and Early Consensus

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Computers, Materials & Continua 2023年第4期75卷 1235-1251页

作者： Murat Dener Sercan Gulburun Information Security Engineering Graduate School of Natural and Applied SciencesGazi UniversityAnkara06560Turkey

One of the most common types of threats to the digital world is malicious *** is of great importance to detect and prevent existing and new malware before it damages information *** learning approaches are used effectively for this *** this study,we present a model in which supervised and unsupervised learning algorithms are used *** is used to enhance the prediction performance of the supervised *** aim of the proposed model is to make predictions in the shortest possible time with high accuracy and f1 *** the first stage of the model,the data are clustered with the k-means *** the second stage,the prediction is made with the combination of the classifier with the best prediction performance for the related *** choosing the best classifiers for the given clusters,triple combinations of ten machine learning algorithms(kernel support vector machine,k-nearest neighbor,naive Bayes,decision tree,random forest,extra gradient boosting,categorical boosting,adaptive boosting,extra trees,and gradient boosting)are *** selected triple classifier combination is positioned in two *** prediction time of the model is improved by positioning the classifier with the slowest prediction time in the second *** selected triple classifier combination is positioned in two *** prediction time of the model is improved by positioning the classifier with the highest prediction time in the second *** is seen that clustering before classification improves prediction performance,which is presented using Blue Hexagon Open Dataset for Malware Analysis(BODMAS),Elastic Malware Benchmark for Empowering Researchers(EMBER)2018 and Kaggle malware detection *** model has 99.74%accuracy and 99.77%f1 score for the BODMAS dataset,99.04%accuracy and 98.63%f1 score for the Kaggle malware detection dataset,and 96.77%accuracy and 96.77%f1 score for the EMBER 2018 *** addition,the tiered posi

关键词： Malware detection ensemble learning classification clustering specialized classifier early consensus

Yellowing of fresh-cut spinach(Spinacia oleracea L.)leaves delayed by UV-B applications

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Information Processing in Agriculture 2017年第3期4卷 214-219页

作者： M.Ufuk Kasim Rezzan Kasim Kocaeli University graduate school of natural and applied sciences Vocational School of Arslanbey41285 KartepeKocaeliTurkiye

In present work,the effects of UV-B treatments on quality of fresh-cut spinach leaves were *** this purpose,spinach leaves grown in glasshouse were harvest,cleaned and placed into polystyrene foam dishes and wrapped by stretch *** packaging,freshcut spinach leaves were treated with UV-B irradiation and were stored at 5℃ temperature for 12 *** soluble solids,visual quality,L^*a^*b^* values,and also hue angle values of samples were determined during *** soluble solids content of samples in control group has been higher than those from samples in UV-B treatments,however,visual quality was lower than the other *** to L*values of the samples,it is found that lower ultraviolet irratiation(UV-B)treatments caused yellowing of samples,and also same result was obtained by b^* and a^* values of fresh-cut spinach ***,hue angles values of samples treated with UV-B for 6min was higher compared with the other ***,yellowing of fresh-cut spinach leaves was decreased,and visual quality scores of samples was increased through ultraviolet irradiation treatments.

关键词： Spinach Fresh-cut Ultraviolet irradiation(UV-B) Yellowing

Shape effects on the ground-state energy of a three-electron quantum dot

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Chinese Physics B 2015年第12期24卷 488-493页

作者： Z.D.Vatansever S.Sakiroglu .Sokmen Department of Physics Faculty of Science Dokuz Eylül University Dokuz Eylül University Graduate School of Natural & Applied Sciences

In this work we will theoretically study the ground-state electronic structure of three-electron polygonal quantum dots by means of the configuration interaction method. Transition from a weakly correlated regime to a strongly correlated regime is investigated for quantum dots with hexagonal, square, and triangular geometries. Our numerical results reveal that the ground-state spin and the charge density distribution of the system are sensitive to the shape of the quantum dot.

关键词： quantum dot configuration interaction method Wigner molecule

Seasonal variations and distributions of dissolved free and total carbohydrates at the ?zmir Bay, Aegean Sea

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Acta Oceanologica Sinica 2018年第8期37卷 6-14页

作者： ALYURUK Hakan KONTAS Aynur graduate school of natural and applied sciences Dokuz Eylül University Institute of Marine sciences and Technology Dokuz Eylül University

Seasonal variations and distributions of dissolved carbohydrate concentrations at the ？zmir Bay were investigated with salinity, chlorophyll a（Chl a）, and dissolved organic carbon（DOC） levels to understand their *** were collected from surface, subsurface and bottom depths at seven stations. DOC concentrations ranged from 32.2 to 244.2 μmol/L, and in general, DOC levels increased from winter to summer, then slightly decreased in autumn. Monosaccharide（MCHO）, polysaccharide（PCHO） and total dissolved carbohydrate（TDCHO） levels were found between 0.7–8.3, 0.7–19.5, and 2.6–24.6 μmol/L. DOC, MCHO, PCHO and TDCHO levels were found higher in middle-inner bays, under the influence of anthropogenic inputs, compared to outer bay. Seasonal changes of MCHO/DOC, PCHO/DOC and TDCHO/DOC ratios were statistically significant（p〈0.05）and the ratios showed decrease trends from winter to summer-autumn seasons. Distributions of TDCHO/DOC ratios at wide ranges（2.5%–42.3%） indicated the presence of newly forming and degrading fractions of *** to results of factor analysis, Chl a, MCHO and TDCHO were explained in the same factor groups. In conclusion, the results showed that dissolved carbohydrate levels in the ？zmir Bay might be influenced by biological processes and terrestrial/anthropogenic inputs.

关键词： monosaccharides polysaccharides carbohydrates DOC Chl a imir Bay

Band structure characteristics of T-square fractal phononic crystals

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Chinese Physics B 2013年第3期22卷 380-384页

作者：刘晓健凡友华 school of natural sciences and Humanities Shenzhen Graduate School of Harbin Institute of Technology

The T-square fractal two-dimensional phononic crystal model is presented in this article.A comprehensive study is performed for the Bragg scattering and locally resonant fractal phononic *** find that the band structures of the fractal and non-fractal phononic crystals at the same filling ratio are quite different through using the finite element *** fractal design has an important impact on the band structures of the two-dimensional phononic crystals.

关键词： fractal design phononic crystal band gap filling ratio

Photodimerization and photooxygenation of 9-vinylcarbazole catalyzed by titanium dioxide and magnesium perchlorate

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Chinese Chemical Letters 2010年第3期21卷 365-368页

作者： Hajime Maeda Mio Yamamoto Hideyuki Nakagawa Kazuhiko Mizuno Division of Material sciences Graduate School of Natural Science and TechnologyKanazawa University Department of applied Chemistry Graduate School of EngineeringOsaka Prefecture University

Photoreaction of 9-vinylcarbazole in acetonitrile in the presence of titanium dioxide and a catalytic amount of magnesium perchlorate gave 3,6-di(9-carbazolyl)-1,2-dioxane as a photooxygenated product via photodimerization of *** photoreaction proceeds via an electron transfer mechanism,where magnesium perchlorate accelerated formation of the photo-oxygenated product.

关键词： Titanium dioxide Magnesium perchlorate 9-Vinylcarbazole Photooxygenation Photodimerization