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High surface area and mesoporous activated carbon from KOH-activated dragon fruit peels for methylene blue dye adsorption:Optimization and mechanism study

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Chinese Journal of Chemical Engineering 2021年第4期34卷 281-290页

作者： Ali H.Jawad Ahmed Saud Abdulhameed Lee d.Wilson Syed Shatir A.Syed-Hassan Zeid A.ALOthman Mohammad Rizwan Khan Faculty of Applied Sciences Universiti Teknologi MARA40450 Shah AlamSelangorMalaysia department of Medical Instrumentation Engineering Al-Mansour University CollegeBaghdadIraq department of Chemistry University of SaskatchewanSaskatoonSaskatchewan S7N 5C9 Canada Faculty of Chemical Engineering Universiti Teknologi MARA40450 Shah AlamSelangorMalaysia Chemistry department College of ScienceKing Saud UniversityRiyadh 11451Saudi Arabia

In this study,an alternative precursor for production of activated carbon was introduced using dragon fruit(Hylocereus costaricensis)peel(dFP).Moreover,KOH was used as a chemical activator in the thermal carbonization process to convert dFP into activated carbon(dFPAC).In order to accomplish this research,several approaches were employed to examine the elemental composition,surface properties,amorphous and crystalline nature,essential active group,and surface morphology of the *** BrunauerEmmettTeller test demonstrated a mesoporous structure of the dFPAC has a high surface area of 756.3 m2g *** cationic dye Methylene Blue(MB)was used as a probe to assess the efficiency of dFPAC towards the removal of MB dye from aqueous *** effects of adsorption input factors(*** dose(A:0.040.12 g L 1),pH(B:310),and temperature(C:3050℃))were investigated and optimized using statistical analysis(*** design(BBd)).The adsorption kinetic model can be best categorized as the pseudofirst order(PFO).Whereas,the adsorption isotherm model can be best described by Langmuir model,with maximum adsorption capacity of dFPAC for MB dye was 195.2 mg g 1 at 50℃.The adsorption mechanism of MB by dFPAC surface was attributed to the electrostatic interaction,pp interaction,and ***,the results support the ability of dFP to be a promising precursor for production of highly porous activated carbon suitable for removal of cationic dyes(***).

关键词： Statistical modeling Activated carbon dragon fruit peels Box-Behnken design Methylene blue dye Adsorption

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以自激注入锁定方式生成边模抑制比高的可调谐双波长超短光脉冲

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红外与毫米波学报 2005年第5期24卷 394-396,400页

作者：陈吉武 d.N.WANG 李志能中国计量学院计量技术工程学院浙江杭州310018 香港理工大学电机系浙江大学信电系浙江杭州310027

介绍一种简单的以自激注入锁定方式、生成边模抑制比改善的、可调谐双波长超短光脉冲的实验系统.系统通过调整两个B ragg光纤光栅和光延迟线,可方便地调谐两个不同波长及其间距,从而获得双波长光脉冲输出.实验显示,在20.7nm的波长调谐... 详细信息

介绍一种简单的以自激注入锁定方式、生成边模抑制比改善的、可调谐双波长超短光脉冲的实验系统.系统通过调整两个B ragg光纤光栅和光延迟线,可方便地调谐两个不同波长及其间距,从而获得双波长光脉冲输出.实验显示,在20.7nm的波长调谐范围内,可获得边模抑制比接近或高于30dB的双波长光脉冲输出.系统简单,且波长调谐方便.

关键词：超短光脉冲双波长增益开关自激注入锁定边模抑制比波长可调谐

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温差电器件接触电阻和接触热阻的测试及分析

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红外技术 1993年第2期15卷 15-18页

作者：高敏 Rowe d M 昆明物理研究所昆明650223 英国威尔士大学

接触电阻和接触热阻是影响温差电器件性能的两个重要的工艺参数,直接反映器件制造的工艺水平。因此,对器件的接触电阻和接触热阻进行测试分析,将能够定量地了解现行工艺对器件温差电性能的影响程度。本文首先介绍接触电阻的测试方法和... 详细信息

接触电阻和接触热阻是影响温差电器件性能的两个重要的工艺参数,直接反映器件制造的工艺水平。因此,对器件的接触电阻和接触热阻进行测试分析,将能够定量地了解现行工艺对器件温差电性能的影响程度。本文首先介绍接触电阻的测试方法和实验结果,然后利用所测的数据,再通过对器件输出功率特性的测试,间接地导出器件的接触热阻。据笔者所知,这是温差电器件接触热阻实测数值的首次报道。

关键词：温差电器件接触电阻接触热阻输出功率有效优值

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FORMATION OF SILICONIZEd LAYER ON TiAl-BASEd ALLOY ANd THE OXIdATION RESISTANCE

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Acta Metallurgica Sinica(English Letters) 2003年第6期16卷 466-472页

作者： W.Liang X.X.Ma X.G.Zhao J.Zhang d.X.Zou SchoolofMaterialsScienceandEngineering TaiyuanUniversityofTechnologyTaiyuan030024China CentralIron＆SteelResearchInstitute Beijing100081China

The Ti-48Al alloy was pack siliconized with 15%Si+85%Al2O3. The microstructure of the siliconized coating on the TiAl-based alloy was analyzed and its effect on oxidation resistance was investigated. The specimens before and after cycle oxidation were examined by XRd and SEM equipped with XEdS. The results showed that the coating is composed of a thin Al2O3 outer layer and a composite inner layer of Ti5Si3 with an appropriate amount of Al2O3 dispersed in. Cycle oxidation tests showed that the high temperature oxidation resistance of TiAl-based alloy was greatly improved by forming such composite coating. No spaliation and crack happened and the weight gain was very small after cycle oxidation at 900℃ for 314h.

关键词： TiAl-based alloy microstructure composite coating high tem-perature oxidation

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CROSTACEI dECAPOdI FOSSILI AI PRATI dI *** dEI REPERTI E TENTATIVO dI CLASSIFICAZIONE

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Natural disaster Reduction in China 1974年第1期 107-137页

作者： ARNALdO d’AVERSA del Centro Studi Naturalistici Bresciani.

L’*** una nuova fauna Norico-Retica a Crostacei decapodi nellalocalità dei Prati di Rest,nell’alta Valvestino(Brescia).Presenta il catalogo dei fossilicollezionati e pone una discussione diagnostica per l’individuazione dei generi Aeger,Antrimpos e Palinurina,corrispondenti a specie che non sembrano ***,il genere Palinurina,già il più antico della sottodivisione Palinura,essendo stato reperito nel Sinemuriano di Lyme Regis nel dorset,nel Toarciano di(?)mister e nel Giurassico superiore tedesco,ne abbasserebbe il livello spostando la pro-pria posizione al Triassico superiore.

关键词： line Pi CROSTACEI dECAPOdI FOSSILI AI PRATI dI REST.CATALOGO dEI REPERTI E TENTATIVO dI CLASSIFICAZIONE dEI REST dI AI

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What do Social Workers Think About Unaccompanied Foreign Minors＇ Family Fostering in Italy

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Sociology Study 2015年第12期5卷 944-952页

作者： Anna d'Andrea Universita Ca' Foscari di Venezia Italy

In Italy, the unaccompanied foreign minors are a growing and heterogeneous group with ever changing origins, trajectories, and features. In November 2015, they were 10,952. This research focuses on their foster care and examines the point of view of social workers that have theoretical competences and fieldwork. The main objective of this paper is to present operational recommendations concerning the definition and organization of this instrument, starting from social workers＇ direct experiences. Main results： A friendly familiar setting is useful to overcome loneliness and social isolation coming from a new and unknown realiW during adolescence and permit a better social, school, and professional integration for the minor compared with residential care. For a successful outcome, the strengths consist in： The young migrant must not have behavioral nor psychiatric disorders and must be willing to integrate himself into a new family, recognize adult authoriW and share his life plan with family＇s adults; training all foster families included omo-cultural ones; the birth family involvement in the foster care＇s project. The ascertained criticalities concern on the low number of available families, the lack of standard operating procedures, guidelines, research, and literature on the topic.

关键词： Unaccompanied foreign minors foster placement social services

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Video capsule endoscopy in inflammatory bowel disease

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World Journal of Gastrointestinal Endoscopy 2016年第14期8卷 477-488页

作者： Paul d Collins department of Gastroenterology and Hepatology Royal Liverpool University Hospital

Video capsule endoscopy (VCE) has evolved to become an important tool for the non-invasive examination of the small bowel, which hitherto had been relatively inaccessible to direct visualisation. VCE has been shown to play a role in monitoring the activity of small bowel Crohn’s disease and can be used to assess the response to anti-inflammatory treatment in Crohn’s disease. For those patients with Crohn’s disease who have undergone an intestinal resection, VCE has been assessed as a tool to detect post-operative recurrence. VCE may also aid in the reclassification of patients with a diagnosis of Inflammatory Bowel disease Unclassified to Crohn’s disease. The evolution of colon capsule endoscopy (CCE) has expanded the application of this technology further. The use of CCE to assess the activity of ulcerative colitis has been described. This advance in capsule technology has also fuelled interest in its potential role as a minimally invasive tool to assess the whole of GI tract opening the possibility of its use for the panenteric assessment of Crohn’s disease. VCE is a safe procedure. However, the risk of a retained capsule is higher in patients with suspected or confirmed Crohn’s disease compared with patients having VCE examination for other indications. A retained video capsule is rare after successful passage of a patency capsule which may be utilised to pre-screen patients undergoing VCE. This paper describes the use of VCE in the assessment of inflammatory bowel disease.

关键词： Video capsule endoscopy Inflammatory bowel diseases Crohn&rsquo s disease Ulcerative colitis Patency capsule

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Network analysis to inform invasive species spread among lakes

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Journal of Oceanology and Limnology 2019年第3期37卷 1037-1041页

作者： ESCOBAR Luis E. ROMERO-ALVAREZ daniel LARKIN daniel J. PHELPS Nicholas B. d. department of Fish and Wildlife Conservation Virginia TechBlacksburgVirginiaUSA department of Ecology and Evolutionary Biology-Biodiversity Institute University of KansasLawrenceUSA department of Fisheries Wildlifeand Conservation BiologyUniversity of MinnesotaSt.PaulMinnesotaUSA Minnesota Aquatic Invasive Species Research Center University of MinnesotaSt.PaulMinnesotaUSA

Often facilitated by human-mediated pathways,aquatic invasive species are a threat to the health and biodiversity of global *** present a novel approach incorporating survey data of watercraft movement in a social network analysis to reconstruct potential pathways of aquatic invasive species spread between *** an example,we use the green alga Nitellopsis obtusa,also known as starry stonewort,an aquatic invasive species affecting the Great Lakes region in the United States and *** movement of algal fragments via human-mediated pathways(i.e.,watercraft)has been hypothesized as the primary driver of starry stonewort *** used survey data collected at boat ramps during the 2013 and 2014 openwater seasons to describe the flow of watercraft from Lake Koronis,where *** was first detected in Minnesota,to other lakes in the *** results suggest that the risk of *** expansion is not highly constrained by geographic proximity and management efforts should consider highly connected *** human movement via network analysis may help to explain past and future routes of aquatic invasive species infestation between lakes and can improve evidence-based prevention and control efforts.

关键词： Nitellopsis obtusa starry stonewort lake network invasion

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Emerging role of protein kinase C in energy homeostasis: A brief overview

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World Journal of diabetes 2014年第3期5卷 385-392页

作者： Kamal d Mehta department of Molecular and Cellular Biochemistry The Ohio State University College of Medicine Dorothy M Davis Heart and Lung Center

Protein kinase C-β(PKCβ), a member of the lipidactivated serine/threonine PKC family, has been implicated in a wide range of important cellular processes. Very recently, the novel role of PKCβ in the regulation of triglyceride homeostasis via regulating mitochondrial function has been explored. In this review, I aim to provide an overview of PKCβ regarding regulation by lipids and recently gained knowledge on its role in energy homeostasis. Alterations in adipose PKCβ expression have been shown to be crucial for diet-induced obesity and related metabolic abnormalities. High-fat diet is shown to induce PKCβ expression in white adipose tissue in an isoform- and tissue-specific manner. Genetically manipulated mice devoid of PKCβ are lean with increased oxygen consumption and are resistant to high-fat diet-induced obesity and hepatic steatosis with improved insulin sensitivity. Available data support the model in which PKCβ functions as a "diet-sensitive" metabolic sensor whose induction in adipose tissue by high-fat diet is among the initiating event disrupting mitochondrial homeostasis via intersecting with p66Shc signaling to amplify adipose dysfunction and have systemic consequences. Alterations in PKCβ expression and/orfunction may have important implications in health and disease and warrants a detailed investigation into the downstream target genes and the underlying mechanisms involved. development of drugs that target the PKCβ pathway and identification of miRs specifically controlling PKCβ expression may lead to novel therapeutic options for treating age-related metabolic disease including fatty liver, obesity and type 2 diabetes.

关键词： High-fat diet Signal transduction Obesity Mitochondrial function Insulin resistance

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RITROVAMENTO dI FOSSILI NELLA dOLOMIA PRINCIPALE dI VALREdOCLA (Sarezzo, Brescia) E SEGNALAZIONE dEI NUOVI GENERI NUOVE SPECIE Redocla allegrettii e Palaeonoricoceras daversai

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Natural disaster Reduction in China 1982年第1期 21-34页

作者： ARNALdO d’AVERSA Centro Studi Naturalistici Bresciani

Circa il ritrovamento di fossili nella dolomia Principale bresciana l’A. ha gia fattopiu segnalazioni. Si cita Natura Bresciana n°4, 6, 8, 9. In particolare l’attenzione e sta-ta per i fossili piu prestigiosi, cioe i Megalodon gumbeli (Stopp.). Nel n°9 di detta rivi-sta inoltre si e anche provveduto ad un catalogo del materiale in deposito presso il Mu-seo di Scienze Naturali di Brescia, proveniente dalle collezioni Ragazzoni, Bettoni eCacciamali o da donazioni occasionali. Sempre nel medesimo lavoro e stato propostoun tentativo di classificazione biometrica dei Megalodon gumbeli (Stopp.) non poten-

关键词： La Pi RITROVAMENTO dI FOSSILI NELLA dOLOMIA PRINCIPALE dI VALREdOCLA Sarezzo Brescia E SEGNALAZIONE dEI NUOVI GENERI NUOVE SPECIE Redocla allegrettii e Palaeonoricoceras daversai dI

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