bluuebunny/crossref_metadata_2025 huggingface dataset:
Facile synthesis of highly luminescent rod-like terbium-based metal–organic frameworks for sensitive detection of olaquindox
Authors: Li Ling , Zhang Miaomiao , Li Ran , Jiang Huan , Liu Zhongde
Published: August 2021

Using the as-prepared water-stable and highly luminescent rod-like Tb–BTC metal–organic frameworks as an optical probe, a luminescence turn-off strategy has been developed for the detection of OLA in animal feed and edible animal tissues.
Molecular diagnostics in the era of COVID-19
Authors: Jayakody Harindi , Kiddle Guy , Perera Semali , Tisi Laurence , Leese Hannah S.
Published: August 2021

As the COVID-19 pandemic continues to escalate globally and acquires new mutations, accurate diagnostic technologies continue to play a vital role in controlling and understanding the epidemiology of this disease.
Marine origin materials on biomaterials and advanced therapies to cartilage tissue engineering and regenerative medicine
Authors: Carvalho Duarte Nuno , Reis Rui L. , Silva Tiago H.
Published: August 2021

This comprehensive review brings a larger perspective on the most recent developments in new tissue-scaffolds based on marine origin polymers envisaging the treatment and repair of human articular cartilage tissues.
A NIR-triggered multifunctional nanoplatform mediated by Hsp70 siRNA for chemo-hypothermal photothermal synergistic therapy
Authors: Zhang Bo , Shao Chen-wen , Zhou Kang-Min , Li Qin , Duan Yong-Tao , Yang Yu-Shun , Zhu Hai-Liang
Published: August 2021

Recently, the combination therapy of hypothermal photothermal therapy (HPTT) and other therapeutic methods seemed essential for the future clinical transformation of cancer therapies.
Preparative production of an enantiomeric pair by engineered polyketide synthases
Authors: Miyazawa Takeshi , Fitzgerald Brendan J. , Keatinge-Clay Adrian T.
Published: August 2021

Modules from the pikromycin synthase were recombined into engineered synthases that furnish an enantiomeric pair of 2-stereocenter triketide lactones at >99% ee with yields up to 0.39 g per liter of E. coli K207-3 in shake flasks.
Unmasking the reverse reactivity of cyclic N-sulfonyl ketimines: multifaceted applications in organic synthesis
Authors: Guin Soumitra , Majee Debashis , Samanta Sampak
Published: August 2021

This feature article covers the recent status on the reactivities of α-alkyl cyclic N-sulfonyl ketimines as resourceful nucleophiles, targeting fused carbo- and heterocycles, aza-arenes etc. In addition, the mechanistic studies have been presented.
Structure-directing effect of aqueous alkali metal ion (Li+, Na+ and K+) clusters on the polyoxoanion configuration in vanadium–molybdenum polyoxometalate solid solutions
Authors: Yao Zhi-Yuan , Zhang Guo-Qin , Li Zi-Han , Shen Lin-Jiang , Ren Xiao-Ming
Published: August 2021

Aqueous alkali metal ion clusters direct the configuration of vanadium–molybdenum solid solution polyoxometalates and crystal structures.
Oxidation of HOSO˙ by Cl˙: a new source of SO2 in the atmosphere?
Authors: Kumar Amit , Mallick Subhasish , Kumar Pradeep
Published: August 2021

In the present work, we have studied the formation of SO2 in the atmosphere from the oxidation of HOSO˙ by Cl˙ at the CCSD(T)/aug-cc-pV(+d)TZ//MP2/aug-cc-pV(+d)TZ level of theory.
Evolution towards green radical generation in total synthesis
Authors: Galliher Matthew S. , Roldan Bec J. , Stephenson Corey R. J.
Published: August 2021

This tutorial review outlines the evolution of methods for radical generation with applications in total synthesis, starting from classical methods towards greener methods that utilize recent advances in electrochemistry and photoredox catalysis.
Effects of precipitants on the catalytic performance of Cu/CeO2catalysts for the water–gas shift reaction
Authors: Lee Yong-Hee , Kim Hak-Min , Jeong Chang-Hoon , Jeong Dae-Woon
Published: August 2021

The ratio of the precipitant (K2CO3 : KOH) was confirmed to affect the Cu dispersion and OSC of the Cu/CeO2catalyst, and the Cu/CeO2catalyst prepared with the K2CO3 : KOH ratio of 3 : 1 showed the highest activity.
Controllable architecture of the NiCoZnS@NiCoFe layered double hydroxide coral-like structure for high-performance supercapacitors
Authors: Lv Shi-Bing , Zeng Hong-Yan , Zou Kai-Min , Xu Sheng , Long Yi-Wen , Li Hao-Bo , Li Zhen
Published: August 2021

NiCoZnS@NiCoFe-LDH with a unique coral-like core–shell structure and a high specific capacitance of 1524.0 C g−1 was successfully prepared.
Hierarchical sheet-on-sheet heterojunction array of a β-Ni(OH)2/Fe(OH)3 self-supporting anode for effective overall alkaline water splitting
Authors: Wu Baoqiang , Yang Zhaohui , Dai Xiaoping , Yin Xueli , Gan Yonghao , Nie Fei , Ren Ziteng , Cao Yihua , Li Zhi , Zhang Xin
Published: August 2021

Hierarchical sheet-on-sheet β-Ni(OH)2/Fe(OH)3 heterojunction array displayed excellent OER performance and stability. The two-electrode configuration on NiFe-HD/Pre-NF||CoP/P-NiO/NF also presented low cell voltage in overall alkaline water splitting.
Preparation of a borane-appended Co(iii) hydride: evidence for metal–ligand cooperativity in O–H bond activation
Authors: Zurakowski Joseph A. , Austen Brady J. H. , Dufour Maeve C. , Bhattacharyya Moulika , Spasyuk Denis M. , Drover Marcus W.
Published: August 2021

A cobalt(iii)-hydride having pendant boranes has been prepared and characterized. Bifunctional behaviour of the ligand is highlighted through reaction of the Co(i) precursor with benzoic acids resulting in B–O and Co–H bonds.
Cross-kingdom regulation by dietary plant miRNAs: an evidence-based review with recent updates
Authors: Jia MingXi , He JinTao , Bai WeiDong , Lin QinLu , Deng Jing , Li Wen , Bai Jie , Fu Da , Ma YuShui , Ren JiaLi , Xiong ShouYao
Published: August 2021

This study summarizes the mechanism by which plant-derived miRNAs remain stable and are absorbed in mammals, and reviews the updated evidence regarding the therapeutic potential of plant miRNAs’ cross-kingdom activity.
Soybean protein hydrolysate stimulated cholecystokinin secretion and inhibited feed intake through calcium-sensing receptors and intracellular calcium signalling in pigs
Authors: Wang Lvyang , Ding Liren , Zhu Weiyun , Hang Suqin
Published: August 2021

Intraduodenal infusion of soybean protein hydrolysate (SPH) stimulated cholecystokinin release (CCK) and inhibited feed intake, which was likely due to the activation of calcium-sensing receptor (CaSR) and intracellular Ca2+/TRPM5 pathway in pigs.
Evaluating the effect of synthesis, isolation, and characterisation variables on reported particle size and dispersity of drug loaded PLGA nanoparticles
Authors: Garms Bruna C. , Poli Hamish , Baggley Darcy , Han Felicity Y. , Whittaker Andrew K. , A Anitha , Grøndahl Lisbeth
Published: August 2021

This work provides advice for PLGA-based nanoparticle fabrication and drug encapsulation quantification as well as the minimum required information to be reported allowing reproducibility.
Influence of ring size in conformationally restricted ring I analogs of paromomycin on antiribosomal and antibacterial activity
Authors: Pirrone Michael G. , Hobbie Sven N. , Vasella Andrea , Böttger Erik C. , Crich David
Published: August 2021

Aminoglycosides with conformationally locked side chains and small hydrophobic patches show increased anti-bacterial activity and ribosomal selectivity. Fine tuning of side chain orientation indicates that the gt conformation is ideal for binding.
Modulating the optical properties and functions of organic molecules through polymerization
Authors: Wu Wenbo , Liu Bin
Published: August 2021

This review summarizes recent progress in the occurrence, mechanism and application for some of the materials with optical properties that are significantly improved through polymerization.
Induction heating induced self-healing of nanocomposites based on surface-functionalized cationic iron oxide particles and polyelectrolytes
Authors: Oberhausen Bastian , Kickelbick Guido
Published: August 2021

Polymer nanocomposites based on surface-functionalized iron oxide nanoparticles were prepared applying electrostatic interactions between the particles and the polymer matrix. The obtained systems showed self-healing behavior upon induction heating.
Solvothermal preparation of spherical Bi2O3 nanoparticles uniformly distributed on Ti3C2Tx for enhanced capacitive performance
Authors: Li Tao , Chang Xuefeng , Mei Lifang , Shu Xiayun , Ma Jidong , Ouyang Li , Gu Siyong
Published: August 2021

Ti3C2Tx is a promising new two-dimensional layered material for supercapacitors with good electrical conductivity and chemical stability.
Chelator-assisted high performance liquid chromatographic separation of trivalent lanthanides and actinides
Authors: M. Pallares Roger , Hébert Solène , Sturzbecher-Hoehne Manuel , Abergel Rebecca J.
Published: August 2021

3,4,3-LI(1,2-HOPO) can be used as a HPLC chelating agent, promoting lanthanide and trivalent actinide separation without column modifications.
Ag-doped Fe-metal–organic framework nanozymes for efficient antibacterial application
Authors: Hu Zhonglan , Liu Xiao , Jiao Lei , Wei Xiaoqiong , Wang Zhen , Huang Nongyu , Li Jiong
Published: August 2021

Illustration of an Fe-MOF-Ag nanozyme for antibacterial application.
One-step in situ growth of MoS2@lentinan as a dual-stimuli-responsive nanocarrier for synergistic chemo-photothermal therapy
Authors: Tian Yilong , Yi Wenhui , Bai Lei , Cheng Xin , Yi Tao , Mu Mingzhu , Zhang Ping , Si Jinhai , Hou Xun , Hou Jin
Published: August 2021

The light absorption capacity of in situ modified MoS2@LTN nanoflowers is 1.26 times higher than that of pure MoS2.
Salt sealing strategy to prepare N,O-codoped porous bio-carbon derived from Ephedra Herb for supercapacitors
Authors: Liu Jing-Jiang , Yan Zhi-Wei , Kang Rui-Xue , Wang Jin-Hui , Feng Xun
Published: August 2021

The high specific surface area, vast microstructure, and large number of heteroatoms of Ephedra Herb are well retained owing to the salt-sealing method developed here.
Application of organometallic catalysts for the synthesis of o-tolyl benzonitrile, a key starting material for sartans
Authors: Jana Anupam , Ravichandiran V. , Swain Sharada Prasanna
Published: August 2021

This review describes methods for the synthesis of o-tolyl benzonitrile, such as Pd-, Ni-catalyzed Suzuki, Negishi and Kumada couplings reactions.
Synthesis of non-C2symmetrical NOBIN-type biaryls through a cascadeN-arylation and [3,3]-sigmatropic rearrangement fromO-arylhydroxylamines and diaryliodonium salts
Authors: Liu Fengting , Wang Min , Qu Jiatong , Lu Haifeng , Gao Hongyin
Published: August 2021

We developed herein a regioselective construction of non-C2symmetrical NOBIN-type biaryls through a cascadeN-arylation and [3,3]-sigmatropic rearrangement fromO-arylhydroxylamines and diaryliodonium salts under mild conditions.
Nucleophilic catalysis ofp-substituted aniline derivatives in acylhydrazone formation and exchange
Authors: Canal-Martín Andrea , Navo Claudio D. , Sáez Elena , Molero Dolores , Jiménez-Osés Gonzalo , Pérez-Fernández Ruth
Published: August 2021

Mechanistic study and superior performance of electron-rich p-substituted aniline derivatives as catalysts for efficient hydrazone formation and exchange in both protic and aprotic solvents.
n-Butyllithium as a highly efficient precatalyst for cyanosilylation of aldehydes and ketones
Authors: Kang Zihan , Xu Xiaojuan , Wang Yuhong , Zhang Wenxuan , Zhou Shuai , Zhu Xu , Xue Mingqiang
Published: August 2021

A highly efficient cyanosilylation protocol promoted by n-BuLi with a wide range of aldehydes and ketones is reported.
Enhanced capacitive performance of cathodically reduced titania nanotubes pulsed deposited with Mn2O3as supercapacitor electrode
Authors: Muzakir Muhammad Muhammad , Zainal Zulkarnain , Lim Hong Ngee , Abdullah Abdul Halim , Bahrudin Noor Nazihah
Published: August 2021

The mass loading of Mn2O3by pulse electrodeposition (PED) onto reduced titania nanotubes (R-TNTs) greatly influences the electrochemical performance of the composite.
Fractionation and characterization of lignin from sugarcane bagasse using a sulfuric acid catalyzed solvothermal process
Authors: Imman Saksit , Khongchamnan Punjarat , Wanmolee Wanwitoo , Laosiripojana Navadol , Kreetachat Torpong , Sakulthaew Chainarong , Chokejaroenrat Chanat , Suriyachai Nopparat
Published: August 2021

Conversion of lignocellulosic residue to bioenergy and biofuel is a promising platform for global sustainability.
Sunlight-assisted degradation of textile pollutants and phytotoxicity evaluation using mesoporous ZnO/g-C3N4catalyst
Authors: Leelavathi H. , Abirami N. , Muralidharan R. , Kavitha Helen P. , Tamizharasan S. , Sankeetha S. , Arulmozhi R.
Published: August 2021

Accessibility of adequate safe and fresh water for human consumption is one of the most significant issues throughout the world and extensive research is being undertaken to resolve it.
Study on the hydrothermal liquefaction of antibiotic residues with molecular sieve catalysts in the ethanol–water system: focus on product distribution and characterization
Authors: Yang Jian , Hong Chen , Xing Yi , Zheng Zixuan , Li Zaixing , Zhao Xiumei , Lü Yongtao , Lü Jianwei
Published: August 2021

In this study, the antibiotic residue was used as a raw material to catalyze hydrothermal liquefaction (HTL) in an ethanol–water system to prepare bio-oil.
Physico-chemical properties of 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK) diazonium ion: a theoretical investigation
Authors: Deligkaris Christos , Millam Evan , Wade Edmir O. , Grayer Maverick L. , Wahl David M.
Published: August 2021

NNKDI TCTT molecular orbital energies (a), molecular orbitals 46 (HOMO), 47 (LUMO) and 48 (LUMO+1) as calculated at the B3LYP/6-311G** level of theory.
Silver/silver halide supported on mesoporous ceria particles and photo-CWPO degradation under visible light for organic compounds in acrylonitrile wastewater
Authors: Zhao Guozheng , Tan Qingwei , Li Changbo , Shang Liyan , Zhang Daihang , Lu Xuanxuan , Qiu Feng
Published: August 2021

Silver/silver halide supported on ordered mesoporous ceria particles (Ag/AgCl/CeO2) were prepared by microwave-assisted soft template method, deposition precipitation method and photoreduction method, and its catalytic performance was investigated.
Distribution characteristics of nitrogen and the related microbial community in the surface sediments of the Songhua River
Authors: Li Congyu , Zhong Zhen , Wang Wenfu , Wang Haiyan , Yan Guokai , Dong Weiyang , Chu Zhaosheng , Wang Huan , Chang Yang
Published: August 2021

In this study, temporal and spatial distribution of nitrogen in the Songhua River sediments and distribution characteristics of related microbes as well as the relationship between them were investigated.
Fabrication of patterned magnetic hydrogels by ion transfer printing
Authors: Tang Jingda , Zeng Liangsong , Liu Zishun
Published: August 2021

Patterned magnetic hydrogels have been fabricated by ion transfer printing and their magnetothermal behavior has been characterized.
Search of stable structures in cation deficient (V,Nb)CoSb half-Heusler alloys by an atomic cluster expansion
Authors: Mena Joaquin Miranda , Gruhn Thomas
Published: August 2021

A ternary map with the DFT formation energy for vacancy deficient (V,Nb)CoSb half-Heusler alloys. The orange line shows the most stable structures for a given V and Nb composition.
Well-defined Fe–Cu diatomic sites for efficient catalysis of CO2 electroreduction
Authors: Feng Manman , Wu Xuemei , Cheng Huiyuan , Fan Zihao , Li Xiangcun , Cui Fujun , Fan Shuai , Dai Yan , Lei Guangping , He Gaohong
Published: August 2021

A facile and scalable synthesis of N4Fe–CuN3 diatomic sites on N-doped carbon frameworks. The CO Faraday efficiency is >95% at −0.4 to −1.1 V with an overpotential of 50 mV.
Carbon nanofiber@ZIF-8 derived carbon nanosheet composites with a core–shell structure boosting capacitive deionization performance
Authors: Gong Xinyi , Luo Wanxia , Guo Nannan , Zhang Su , Wang Luxiang , Jia Dianzeng , Ai Lili , Feng Shizhan
Published: August 2021

This work demonstrated the development of a hierarchical porous carbon–carbon composite used as an electrode material for capacitive deionization.
Novel graphitic carbon nitride g-C9N10 as a promising platform to design efficient photocatalysts for dinitrogen reduction to ammonia: the first-principles investigation
Authors: Xia Lixue , Wang Huan , Zhao Yan
Published: August 2021

Based on the self-doping strategy, a new graphitic carbon nitride (g-C9N10) is theoretically designed as a promising platform for photocatalysis. Boron-doped g-C9N10 (B@g-C9N10) is then theoretically proved as an excellent photocatalyst for NRR.
Effects of low doping on the improvement of cathode materials Na3+xV2−xMx(PO4)3 (M = Co2+, Cu2+; x = 0.01–0.05) for SIBs
Authors: Chen Ruoyu , Butenko Denys S. , Li Shilin , Li Dongdong , Zhang Xinyu , Cao Junming , Ogorodnyk Ivan V. , Klyui Nickolai I. , Han Wei , Zatovsky Igor V.
Published: August 2021

In this work, we demonstrate the advantages of low doping in relation to the electrochemical properties of the NVP cathode for use in SIBs.
Applications of thermodynamic calculations to practical TEG design: Mg2(Si0.3Sn0.7)/Cu interconnections
Authors: Tumminello Silvana , Ayachi Sahar , Fries Suzana G. , Müller Eckhard , de Boor Johannes
Published: August 2021

Mg2(Si0.3Sn0.7)/Cu contact couple was selected to illustrate that equilibrium thermodynamic considerations are an efficient support to anticipate/identify reaction products in the bonded region, and ultimately, for improving the contact design.
Microstructural origin of selective water oxidation to hydrogen peroxide at low overpotentials: a study on Mn-alloyed TiO2
Authors: Li Jiahui , Solanki Devan , Zhu Qianhong , Shen Xin , Callander Grace , Kim Jaehong , Li Yaogang , Wang Hongzhi , Hu Shu
Published: August 2021

Mn-alloyed TiO2 coatings prepared by atomic layer deposition (ALD) and annealing acheived stable two-electron selective water oxidation to produce hydrogen peroxide, where the desired products require thermodynamically unfavorable pathways.
Degradation study for the membrane electrode assembly of anion exchange membrane fuel cells at a single-cell level
Authors: Hyun Jonghyun , Yang Seok Hwan , Doo Gisu , Choi Sungyu , Lee Dong-Hyun , Lee Dong Wook , Kwen Jiyun , Jo Wonhee , Shin Sang-Hun , Lee Jang Yong , Kim Hee-Tak
Published: August 2021

The cathode side catalyst and binder were severely deteriorated compared to the membrane and that of the anode side during the constant current operation. This is due to the high local pH of the cathode caused by the water imbalance inside the MEA.
Defective/graphitic synergy in a heteroatom-interlinked-triggered metal-free electrocatalyst for high-performance rechargeable zinc–air batteries
Authors: Yasin Ghulam , Ibrahim Sehrish , Ibraheem Shumaila , Ali Sajjad , Iqbal Rashid , Kumar Anuj , Tabish Mohammad , Slimani Yassine , Nguyen Tuan Anh , Xu Hu , Zhao Wei
Published: August 2021

A strategy for defective/graphitic synergy in heteroatom-interlinked-triggered asphaltene (D/G-HASP) is presented. D/G-HASP reveals outstanding catalytic activities and durability in half-cell (ORR/OER) and full-cell (zinc–air) reactions.
Recent advances in the “on–off” approaches for on-demand liquid-phase hydrogen evolution
Authors: Liu Xiang , Zhang Xinyu , Li Dong-Sheng , Zhang Shanqing , Zhang Qichun
Published: August 2021

This article highlights the background and recent progresses on the “on–off” approaches for the realization of on-demand liquid-phase H2 evolution with a particular emphasis on their mechanisms and applications.
Synthesis and in vitro preliminary evaluation of prostate-specific membrane antigen targeted upconversion nanoparticles as a first step towards radio/fluorescence-guided surgery of prostate cancer
Authors: Cordonnier Axel , Boyer Damien , Besse Sophie , Valleix Rodolphe , Mahiou Rachid , Quintana Mercedes , Briat Arnaud , Benbakkar Mhammed , Penault-Llorca Frédérique , Maisonial-Besset Aurélie , Maunit Benoit , Tarrit Sébastien , Vivier Magali , Witkowski Tiffany , Mazuel Leslie , Degoul Françoise , Miot-Noirault Elisabeth , Chezal Jean-Michel
Published: August 2021

Upconverting nanoparticles were synthesized, hydrophilized and functionalized to efficiently target PSMA positive prostate cancer cells.
The tumor phototherapeutic application of nanoparticles constructed by the relationship between PTT/PDT efficiency and 2,6- and 3,5-substituted BODIPY derivatives
Authors: Yin Juanjuan , Jiang Xu , Sui Guomin , Du Yingying , Xing Enyun , Shi Ruijie , Gu Chengzhi , Wen Xiaona , Feng Yaqing , Shan Zhongqiang , Meng Shuxian
Published: August 2021

In this study, we designed and synthesized nine novel BODIPY near-infrared dyes, and discussed the relationship between their structures and photothermal/photodynamic effects. The prepared nanoparticles showed excellent biocompatibility and anti-tumor efficiency.
Synthesis, characterization and use of enzyme cashew gum nanoparticles for biosensing applications
Authors: das Graças Nascimento Amorim Adriany , Sánchez-Paniagua Marta , de Oliveira Taiane Maria , Mafud Ana Carolina , da Silva Durcilene Alves , de Souza de Almeida Leite José Roberto , López-Ruiz Beatriz
Published: August 2021

The usefulness of enzymatic nanoparticles based on a natural product (cashew gum) as a component of an electrochemical biosensor was proved.
Biodegradable polyurethane nerve guide conduits with different moduli influence axon regeneration in transected peripheral nerve injury
Authors: Wang Yanchao , Liang Ruichao , Lin Jingjing , Chen Jinlin , Zhang Qiao , Li Jiehua , Wang Minjin , Hui Xuhui , Tan Hong , Fu Qiang
Published: August 2021

The mechanical properties of polyurethane nerve guide conduits could play a key role in regulating peripheral nerve system repair by affecting the formation and extension of axons and should be considered in biomaterial conduit designs.
Recent developments in selenium-containing polymeric micelles: prospective stimuli, drug-release behaviors, and intrinsic anticancer activity
Authors: Birhan Yihenew Simegniew , Tsai Hsieh-Chih
Published: August 2021

Selenium-containing nanocarriers can respond to different stimuli to release payloads in the vicinity of cancer cells.
Enhanced osteogenic activity and antibacterial performance in vitro of polyetheretherketone by plasma-induced graft polymerization of acrylic acid and incorporation of zinc ions
Authors: Zhang Yuxiang , Wu Hongfeng , Yuan Bo , Zhu Xiangdong , Zhang Kai , Zhang Xingdong
Published: August 2021

A combined method of plasma-induced graft polymerization and ion incorporation was used to endow PEEK with good osteogenic activity and antibacterial performance.
Reusable and highly sensitive SERS immunoassay utilizing gold nanostars and a cellulose hydrogel-based platform
Authors: Oliveira Maria João , Cunha Inês , de Almeida Miguel P. , Calmeiro Tomás , Fortunato Elvira , Martins Rodrigo , Pereira Luís , Byrne Hugh J. , Pereira Eulália , Águas Hugo , Franco Ricardo
Published: August 2021

A highly-sensitive SERS immunosensor, easily fabricated by merging: (i) plasmonic gold nanostars in SERS-immunotags; (ii) highly active capture antibodies in a regenerated cellulose hydrogel platform; and (iii) CLS method for SERS data analysis.
Ultra-sensitive boscalid sensors based on a β-cyclodextrin modified perfluorinated copper phthalocyanine field-effect transistor
Authors: Zhang Yunpeng , Kuang Junhua , Dong Jicheng , Shi Longxian , Li Qingyuan , Zhang Bingjie , Shi Wei , Huang Xin , Zhu Zhiheng , Ma Yongqiang , Guo Yunlong , Liu Yunqi
Published: August 2021

Organic field-effect transistor based on perfluorinated copper phthalocyanine with β-cyclodextrin (β-CD) modification displayed highly sensitivity to boscalid molecules.
A unique green-emitting phosphor-in-glass (PiG) for solid state laser lighting and displays
Authors: Liang Yueyuan , Bao Shuyang , Zhang Yujie , Xu Fucai , Liang Xiaojuan , Xiang Weidong
Published: August 2021

To further demonstrate the potential for solid-state laser lighting applications, the optical performances of (BaSr)2SiO4–PiG are explored under blue laser irradiation.
A highly sensitive, foldable and wearable pressure sensor based on MXene-coated airlaid paper for electronic skin
Authors: Yao Di-Jie , Tang Zhenhua , Zhang Li , Liu Zhi-Gang , Sun Qi-Jun , Hu Song-Cheng , Liu Qiu-Xiang , Tang Xin-Gui , Ouyang Jianyong
Published: August 2021

MXene-coated airlaid paper sensors were fabricated via the dip-coating technique, displaying high sensitivity (7.65 kPa−1), broad sensing range (300 kPa) and durability for human motion monitoring and 3D folded conformational change detection.
Tunable charge-transport polarity in thienothiophene–bisoxoindolinylidene-benzodifurandione copolymers for high-performance field-effect transistors
Authors: Chen Zhihui , Huang Jianyao , Zhang Weifeng , Zhou Yankai , Wei Xuyang , Wei Jinbei , Zheng Yuanhui , Wang Liping , Yu Gui
Published: August 2021

The substituent effects in methyl- and methoxy-substituted thienothiophene–bis(oxoindolinylidene)benzodifurandione copolymers on field-effect performances were studied.
Improving the thermoelectric performance of Ti-doped NbFeSb by substitutional doping of the Sb atoms with the isoelectric and heavy Bi atoms
Authors: Kahiu Joseph Ngugi , Kihoi Samuel Kimani , Lee Ho Seong
Published: August 2021

Solute Bi atoms in Nb0.8Ti0.2FeSb1−xBix samples scatter phonons and increase the effective mass, increasing the ZT within the Bi solubility limit; above this limit, concomitant Sb vacancies disproportionately donate holes, resulting in poor ZT.
Comprehensive investigation of RNA‐sequencing dataset reveals the hub genes and molecular mechanisms of coronavirus disease 2019 acute respiratory distress syndrome
Authors: Deng Wangsheng , Zeng Jiaxing , Lu Shunyu , Li Chaoqian
Published: August 2021

The goal of this study is to reveal the hub genes and molecular mechanisms of the coronavirus disease 2019 (COVID‐19) acute respiratory distress syndrome (ARDS) based on the genome‐wide RNA sequencing dataset. The RNA sequencing dataset of COVID‐19 ARDS was obtained from GSE163426. A total of 270 differentially expressed genes (DEGs) were identified between COVID‐19 ARDS and control group patients. Functional enrichment analysis of DEGs suggests that these DEGs may be involved in the following biological processes: response to cytokine, G‐protein coupled receptor activity, ionotropic glutamate receptor signalling pathway and G‐protein coupled receptor signalling pathway. By using the weighted correlation network analysis approach to analyse these DEGs, 10 hub DEGs that may play an important role in COVID‐19 ARDS were identified. A total of 67 potential COVID‐19 ARDS targetted drugs were identified by a complement map analysis. Immune cell infiltration analysis revealed that the levels of T cells CD4 naive, T cells follicular helper, macrophages M1 and eosinophils in COVID‐19 ARDS patients were significantly different from those in control group patients. In conclusion, this study identified 10 COVID‐19 ARDS‐related hub DEGs and numerous potential molecular mechanisms through a comprehensive analysis of the RNA sequencing dataset and also revealed the difference in immune cell infiltration of COVID‐19 ARDS.
Cyclotron line formation by reflection on the surface of a magnetic neutron star
Authors: Kylafis N. D. , Trümper J. E. , Loudas N. A.
Published: August 2021

Context. Accretion onto magnetic neutron stars results in X-ray spectra that often exhibit a cyclotron resonance scattering feature (CRSF) and, sometimes, higher harmonics of it. Two places are suspect for the formation of a CRSF: the surface of the neutron star and the radiative shock in the accretion column.

Aims. Here we explore the first possibility: reflection at the neutron-star surface of the continuum produced at the radiative shock. It has been proposed that for high-luminosity sources, as the luminosity increases, the height of the radiative shock increases, thus a larger polar area is illuminated, and as a consequence the energy of the CRSF decreases because the dipole magnetic field decreases by a factor of two from the pole to the equator. This model has been specifically proposed to explain the observed anticorrelation of the cyclotron line energy and luminosity of the high-luminosity source V 0332+53.

Methods. We used a Monte Carlo code to compute the reflected spectrum from the atmosphere of a magnetic neutron star, when the incident spectrum is a power-law one. We restricted ourselves to cyclotron energies ≪mec2 and used polarization-dependent scattering cross sections, allowing for polarization mode change.

Results. As expected, a prominent CRSF is produced in the reflected spectra if the incident photons are in a pencil beam, which hits the neutron-star surface at a point with a well-defined magnetic field strength. However, the incident beam from the radiative shock has a finite width and thus various magnetic field strengths are sampled. As a result of overlap, the reflected spectra have a CRSF, which is close to that produced at the magnetic pole, independent of the height of the radiative shock.

Conclusions. Reflection at the surface of a magnetic neutron star cannot explain the observed decrease in the CRSF energy with luminosity in the high-luminosity X-ray pulsar V 0332+53. In addition, it produces absorption lines much shallower than the observed ones.
Quasar clustering at redshift 6
Authors: Greiner J. , Bolmer J. , Yates R. M. , Habouzit M. , Bañados E. , Afonso P. M. J. , Schady P.
Published: August 2021

Context. Large-scale surveys over the last years have revealed about 300 quasi-stellar objects (QSOs) at redshifts above 6. Follow-up observations have identified surprising properties, such as the very high black hole (BH) masses, spatial correlations with surrounding cold gas of the host galaxy, and high CIV-MgII Velocity shifts. In particular, the discovery of luminous high-redshift quasars suggests that at least some BHs likely have high masses at birth and grow efficiently.

Aims. Our aim is to quantify quasar pairs at high redshift for a large sample of objects. This provides a new key constraint on a combination of parameters related to the origin and assembly for the most massive BHs: formation efficiency and clustering, growth efficiency, and the relative contribution of BH mergers.

Methods. We observed 116 spectroscopically confirmed QSOs around redshift 6 with the simultaneous seven-channel imager Gamma-ray Burst Optical/Near-infrared Detector in order to search for companions. Applying colour-colour cuts identical to those which led to the spectroscopically confirmed QSOs, we performed Le PHARE fits to the 26 best QSO pair candidates, and obtained spectroscopic observations for 11 of them.

Results. We do not find any QSO pair with a companion brighter than M1450(AB) < −26 mag within our 0.1–3.3 h−1 cMpc search radius, in contrast to the serendipitous findings in the redshift range 4–5. However, a small fraction of such pairs at this luminosity and redshift is consistent with indications from present-day cosmological-scale galaxy evolution models. In turn, the incidence of L- and T-type brown dwarfs, which occupy a similar colour space to z ∼ 6 QSOs, is higher than expected, by a factor of 5 and 20, respectively.
Atmospheric Ray Tracing: An efficient, open-source framework for finding eigenrays in a stratified, moving medium
Authors: Schäfer Philipp , Vorländer Michael
Published: August 2021

In this paper, an open-source framework for ray tracing in a stratified moving medium is introduced. This framework provides an efficient method to find eigen-rays connecting a source with a receiver and is designed for the purpose of aircraft noise auralization. The method is tested with respect to accuracy and run-time in an aircraft flyover scenario and compared to a state of the art method. The investigation showed that this method provides eigenrays with preset accuracy for source positions most relevant for flyover scenarios and that it is significantly faster than the state of the art method. According to the performance analysis, the presented approach has great potential for integration into future real-time auralizations of aircraft noise.
Socio-economic portrait of Polish anglers: implications for recreational fisheries management in freshwater bodies
Authors: Czarkowski Tomasz K. , Wołos Arkadiusz , Kapusta Andrzej
Published: August 2021

Recreational fisheries are an important element of contemporary fisheries. Detailed information about the motivation and opinions of anglers regarding catch-and-release fishing in post-communist countries, such as Poland, has not been widely available to date. The aim of this study was to fill this gap. We obtained 936 survey questionnaires completed by anglers from throughout Poland. The mean annual catch of a Polish angler is 126 fish weighing 46.1 kg. Anglers catch mainly cyprinids, but they would prefer to catch large predatory fishes, and they spend an average of 416.50 EUR on this activity annually. These results confirm the hypothesis that angling catches in Poland are decidedly of a recreational character and that catches targeted at fish consumption are of lesser importance. Simultaneously, we determined that younger anglers are more willing to release caught fish than older anglers.
Mean field approach to stochastic control with partial information
Authors: Bensoussan Alain , Yam Sheung Chi Phillip
Published: August 2021

In our present article, we follow our way of developing mean field type control theory in our earlier works [Bensoussanet al., Mean Field Games and Mean Field Type Control Theory.Springer, New York (2013)], by first introducing the Bellman and then master equations, the system of Hamilton-Jacobi-Bellman (HJB) and Fokker-Planck (FP) equations, and then tackling them by looking for the semi-explicit solution for the linear quadratic case, especially with an arbitrary initial distribution; such a problem, being left open for long, has not been specifically dealt with in the earlier literature, such as Bensoussan [Stochastic Control of Partially Observable Systems. Cambridge University Press, (1992)] and Nisio [Stochastic control theory: Dynamic programming principle. Springer (2014)], which only tackled the linear quadratic setting with Gaussian initial distributions. Thanks to the effective mean-field theory, we propose a solution to this long standing problem of the general non-Gaussian case. Besides, our problem considered here can be reduced to the model in Bandiniet al.[Stochastic Process. Appl.129(2019) 674–711], which is fundamentally different from our present proposed framework.
Modeling the risks of marine submersion on the Saidia coastal- Cap de l'Eau (Northeast Morocco)
Authors: Ramdani Samhane , Oujidi Mostafa , Amarjouf Najat , Afif Hafssa , Azougay Abdellah
Published: August 2021

The coastline is an area of ecological and environmental balance between the continent and the sea. The coastline from Saidia to Cap de l'Eau, located on the Mediterranean coast of Morocco, is the subject of this study. The goal of this work is to produce maps of the risk of marine submersion. The methodology followed consists of entering storm meteorological data and land use data into the Iber 2D software. In addition, we mapped the hazard as well as the vulnerability of this submersion. The results of this 2D modeling of the hazard have shown that the coastline of Saidia - Cap de l'Eau presents a high risk of marine submersion, and this by the water levels rises to more than 4 meters and overflow on a width of more than 20 meters towards the mainland. In addition, the coastal strip constitutes a zone of high vulnerability compared to the continent.
Flood Hazard Mapping in Rural Area: Case of Ephemeral Watercourses in SidiBoulenouar Zone
Authors: Amar Imane , Bengamra Said , Amarjouf Najat , Azougay Abdellah
Published: August 2021

The eastern region of Morocco is characterized by an arid to semi-arid climate. It is often confronted with heavy rainfall episodes that can generate floods that can cause adverse human and property damage. This work studies hydrological risk in the SidiBoulenouar area (Oujda province) to model floods and map risk areas. The method used is to determine the watersheds and their watercourses, then to calculate the flows with the mathematical formulas. Topographic data were extracted from a 12.5-m resolution DEM derived from the ASTER (Advanced Spaceborne Thermal Emission and Reflection Radiometer). GDEM (Global DEM). The DEM was used to delimit the hydrographic network with ArcMap software. The use of HEC RAS 1D was necessary to delimit the flooding area. The results of the 1D hydraulic modeling of the centennial flood showed that four ephemeral watercourses landlock the rural area of SidiBoulenouar at the time of the floods.
Pedological characteristics of soils in the watersheds of Oueds Nekôr and Ghiss (Central Rif; Morocco)
Authors: Ed Dakiri Soukaina , Faiz Hatim , Ouldchaib Jaouad , El Moussaoui Said , El Talibi Hajar , Cherkaoui Dekkaki Hinde , Mourabit Taoufik , Bouzid Saida , Damnati Brahim , Etebaai Issam
Published: August 2021

The objective of this work is the pedological characterization of soils in the watersheds of Oueds Nekôr and Ghiss. Several profiles were identified and sampled for Physico-chemical and sedimentological analyses (color index, magnetic susceptibility, pH, granulometry, water content, organic matter, and carbonates). The watersheds in question are roughly characterized by a soft and diversified lithology, a sparse vegetation cover, and a semi-arid Mediterranean climate. The soils in the Oued Nekôr watershed are of the silty type (> 50%), not very developed and relatively well-drained, and become well-drained stony in the steep and eroded areas. Soil pH varies between 7 and 8, reflecting low alkaline to alkaline soils. In the Oued Ghiss watershed, the sandstone-limestone or marl-schist soils are poorly differentiated in the steep slopes. The well-drained soils are gravelly, relatively alkaline, and show the beginning of rubefaction. Very locally on wooded flats, the soil profiles can become deep and well-differentiated due to colluvial accumulation. The dark brown eluvial A horizon is relatively rich in organic matter (3.6%). The well individualized illuvial B horizon has strongly rubbed concretions and is richer in organic matter (4.6%). The light beige C horizon corresponds to the strongly altered marl and limestone parent rock with low organic matter content (1.3%) and very low magnetic susceptibility values.
A comparative study to assess surface water's anthropic and natural vulnerability using the DKPR and RUSLE approaches. Case of the watershed of the Joumouaa dam (Coastal basin of Ghiss, North East Morocco)
Authors: Mansour Soukaina , Kouz Taoufiq , Belkendil Abdeldjalil , Cherkaoui Dekkaki Hinde
Published: August 2021

The salinization of surface water in a coastal context leads to a qualitative degradation of this resource by various sources of anthropogenic and natural pollution. In this context, we present the results of a comparative study using "DKPR" and "RUSLE" models to evaluate the degree of surface water vulnerability against pollution, especially in the sub-watershed of the Joumouaa dam, a hydraulic infrastructure providing drinking water for the Targuist city. The "DKPR" model adopted as a qualitative approach involves four parameters: Accessibility of the aquatic environment (D), Water functioning of the soil and subsoil (K), Physiography watershed (P), Rainfall erosivity (R). The final result is a resource vulnerability map obtained by combining index maps of these four parameters using remote sensing and GIS. The "RUSLE" model applied as a quantitative approach integrates five factors in a multiplying function, namely: rainfall erosivity (R), soil erodibility (K), slope length and steepness (LS), cover-management (C), and soil conservation practices (P) in a remote sensing and GIS environment. The analysis of the final vulnerability maps of the approaches mentioned above will be helpful support for water resource managers and decision-makers better identify areas of high risk and their protection.
Explosion Suppression Control Technology of FG Strong Adsorption Material for Leakage / Flowing Fire of Hazardous Chemicals
Authors: Huang Jianshe , Hu Wujun , Huang Ying , Jing Enlei , Fu Jianyue , Jin Zhimin
Published: August 2021

At present, in the process of production, operation, storage, transportation, use and disposal of petroleum and chemical solvents, major environmental disasters, such as fire, explosion and personal injury caused by leakage, are common. The disasters are often aggravated by the backward emergency disposal technology and improper operation. FG polymer is an inert, strong adsorptive material for hydrophobic substance, and the material is safe itself and non-toxic to aquatic fish and plants. In this study, FG polymer is tested in fire-fighting, explosion suppression and controling flowing fire. The result shows that the FG strong adsorption material can quickly absorb oil spill and leakage of hazardous chemicals on water and land surface, therefore controlling and eliminating the spread of flowing fire, isolating oxygen, extinguishing fire, suppressing explosion, and effectively avoiding environmental pollution. This technology can replace the backward emergency disposal methods such as oil spill dispersant, PP absorbent felt. With this technology being applied in emergence rescue, the disposal cost can be reduced by more than 50%, additionally the abilities of risk prevention, hidden danger elimination, and accident suppression can be enhanced significantly.
Substation Indoor Wheeled Robot Inspection Visual Blind Pressure Plate Recognition
Authors: Xiao Xing , Li Xinhai , Zhou Heng , Liang Jingming , Xia Man
Published: August 2021

In order to solve the problem of wheeled robots in the main control room of the substation due to the height of the robot and the shooting distance, the main camera cannot take a complete picture of the bottom pressure plate of the relay protection pressure plate cabinet during the inspection process and perform open/close state and label image recognition. Propose install a wide-angle secondary camera on the side of wheeled robot, and targeted proposal for the correction of distorted images taken with a wide-angle lens using a division model, improving the accuracy of decompression plate checks. Experiments have shown that, the proposed approach is practical and feasible, effective solution for indoor wheeled robot relay panel cabinet inspection visual blind spot shooting problem, enhanced the effectiveness of wheeled robotic inspections in the main control room of the substation, improved platen verification accuracy.
Hydrothermal Synthesis of MnV2O6 Nanorods as an Anode Material for Lithium-ion Batteries
Authors: Li Lin , Zheng Wei , Zhao Rongfei , Cheng Jinsong
Published: August 2021

The MnV2O6 nanorods anode materials was prepared by a simple hydrothermal method, MnCl2·2H2O and NH4VO3 as raw stuffs. The MnV2O6 nanorods anode materials were tested by SEM, XRD, and galvanostatic charge/discharge profile measurement. Time-dependent experiments were designed to examine the morphology evolution of the MnV2O6 nanorods anode materials. As an anode material, the MnV2O6 nanorods showed the good discharge capacity (403 mAh g−1 of 100th). The good electrochemical performance can be attributed to the synergistic effect with Mn and V elements, and fast lithium ion diffusion of the 1D nanorods structure.
Simulation Calculation on the Failure Mode of the Big-size Sandbag Cofferdam on Soft Foundation
Authors: Chen Lingwei , Liu Wei , Zhang Qinhua , Peng Weipin
Published: August 2021

The offshore engineering develop fast in recent years, a new method named “big-size sandbag cofferdam” is applied to many practical projects in China. The sandbag is made of geotextile with large sizes in length and width. Sandbags are filled with pumped sea sand and stacked together layer by layer. Many theoretical obstacles remain unsolved, which has restricted the application of this advanced technology. Based on an instability project located in Bohai Bay, the failure mode of the big-size sandbag cofferdam on soft foundation was studied. The results show that the deformation of cofferdam was concentrated on the bottom sandbag, under the action of insufficient foundation bearing capacity and overburden load, the stress of the geotextile at the bottom layer increase sharply during the fast filling, then exceed its ultimate tensile strength, and the cofferdam would be pulled apart from the bottom to top, lead to a continuous penetrating sliding surface failure of big-size sandbag cofferdam.
A Study on Public Safety Environment in Open Blocks
Authors: Weng Yuxi
Published: August 2021

It has been five years since the block system was put forward. Up to now, there are three open blocks in Shanghai. At the beginning of “block system”, the security of open block was controversial. This research investigates two groups of open blocks and closed blocks through questionnaires and interviews. It analyses the public security environment of open blocks from two aspects of objective public security environment problems and subjective residents’ safety psychological feelings, which leads to the thinking of “block system” public security environment.
Optimization of the Method of Constructing Ecological Security Pattern with Rapid Urban Expansion
Authors: Li Ke , Yu Tiantian , Li Ji , Cui Chengling , Wu Song
Published: August 2021

The contradiction between urban development and ecological environment protection is particularly obvious in rapidly expanding urban areas. It is necessary to build a reasonable urban ecological security pattern. to balance urban expansion and ecological security. This paper takes Zhengzhou as an example, based on spatial principal component analysis, a comprehensive assessment of urban ecological security is carried out by using natural characteristics, human characteristics, and natural and human interaction characteristics, and ecological sources are extracted; Based on the ecological corridors extracted by the minimal cumulative resistance (MCR) model, the edge-betweenness index is used to optimize the model, and redundant corridors are eliminated, the first-level ecological corridors and ecological nodes on the first-level ecological corridor are extracted. Through experiments, 25 important ecological sources, 24 first-level ecological corridors, and 32 ecological nodes were extracted. Important ecological sources, first-level ecological corridors and ecological nodes constitute the basic ecological security pattern of Zhengzhou, which effectively alleviate the contradiction between rapid urban expansion and ecological protection, and ensuring urban ecological security at the same time.
LiV3O8 Nanoplates Via Polyacrylamide-assisted Freeze Drying Method and as Cathode Materials for Li-ion Batteries
Authors: Li Lin , Zheng Wei , Zhao Rongfei , Cheng Jinsong
Published: August 2021

The LiV3O8 nanoplates cathode materials was prepared by polyacrylamide-assisted freeze drying method. The annealing temperature affected the agrochemical properties of the LiV3O8 nanosheets cathode materials. The LiV3O8 nanoplates cathode materials were characterized by XRD, XPS, SEM, TEM, and galvanization charge/discharge profile measurement. The LiV3O8 fabricated at 550 °C (LVO550) showed the highest discharge capacity, best agrochemical performance, and high rate capability (after 100th, a reversible discharge capacity up to 223.8 mAh g−1). Benefiting from two dimensional nanoplates structure can provided a larger surface area, shorter lithium ion diffusion path, and maintain stable structure, the LiV3O8 nanoplates exhibited excellent rate capability, high reversible capacity and high temperature properties.