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2021

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Barriers To Medication Abortion Among Massachusetts’ Public University Students: Medication Abortion Barriers, Carrie N. Baker, Julia Mathis Dec 2021

Barriers To Medication Abortion Among Massachusetts’ Public University Students: Medication Abortion Barriers, Carrie N. Baker, Julia Mathis

Study of Women, Gender, & Sexuality: Faculty Publications

Objective

Proposed legislation in Massachusetts would require public university health centers to provide medication abortion services on campus. This study assesses need for these services by investigating current travel time, costs, wait times and insurance acceptance at off-campus, abortion-providing facilities nearest to public universities in Massachusetts.

Study Design

This investigation projected the total number of medication abortions of students at 13 Massachusetts public universities based on campus enrollment figures and age- and state-adjusted medication abortion rates in the state. Using a cross-sectional study design, the research calculated the distance and public transit time from campuses to the nearest abortion-providing facilities. …


Analysis Of Volatile Aroma Components Of Ampelopsis Grossedentata Tea With Different Processing Technology Based On Gc-Ms Combined With Roav, Zhang Jin-Cheng, Yu Ji, Ma Cheng-Jin, Yao Mao-Jun, Wu Zhu-Qing Dec 2021

Analysis Of Volatile Aroma Components Of Ampelopsis Grossedentata Tea With Different Processing Technology Based On Gc-Ms Combined With Roav, Zhang Jin-Cheng, Yu Ji, Ma Cheng-Jin, Yao Mao-Jun, Wu Zhu-Qing

Food and Machinery

Objective: This study aimed to explore the influence of processing technology on characteristic aroma components of Ampelopsis Grossedentata tea. Methods: Four different samples of A. Grossedentata were prepared by traditional processing technology, black tea processing technology, green tea processing technology and dark tea processing technology, and the key flavor compounds of different samples were analyzed by headspace solid-phase microextraction and gas chromatography-mass spectrometry combined with relative odor activity (ROAV), taking the naturally dried A. Grossedentata leaves as control. Results: A total of 37 volatile flavor compounds were detected from 4 kinds of A. Grossedentata tea samples and control samples, among …


Prediction Model Building For Finished Tobacco Quality Based On Miv-Bp Neural Network, Zhuo Ming, Wang Peng, Wang Kai-Kui Dec 2021

Prediction Model Building For Finished Tobacco Quality Based On Miv-Bp Neural Network, Zhuo Ming, Wang Peng, Wang Kai-Kui

Food and Machinery

Objective: The simulation and prediction model between the process of silk making and the quality of finished tobacco was established. Methods: The average influence value method was used to screen the process parameters in the process of making silk, and then a simulation model of the key process parameters of the silk and the quality of the final tobacco was constructed through the Back-Propagation neural network. Results: Comparing the simulated data with the measured data, the average relative error of the simulated prediction of the filling value was 3.16%; the average relative error of the simulated prediction of the whole …


Reconstruction Of Branded Leisure Food Supply Chain Under The Background Of Business Model Innovation, Li Xia, Lu Yue, Li Feng-Ting, Wang Pei-Pei Dec 2021

Reconstruction Of Branded Leisure Food Supply Chain Under The Background Of Business Model Innovation, Li Xia, Lu Yue, Li Feng-Ting, Wang Pei-Pei

Food and Machinery

The paper proposed that branded leisure food companies should keep up with the pace of business model innovation, reduce production costs, expand product sales channels and improve logistics efficiency by analyzing the problems of traditional Branded Leisure Food Supply Chain(BLFSC) under the E-commerce model. Additionally, it is pointed out that branded leisure food companies urgently need restructure and improve the overall circulation efficiency of BLFSC under the background of innovative business models.


Library Anxiety Of Lis Students In Universities Of Pakistan: A Measurement Using Mlas, Mahe Bushra Asghar, Rubina Bhatti, Salman Bin Naeem Dec 2021

Library Anxiety Of Lis Students In Universities Of Pakistan: A Measurement Using Mlas, Mahe Bushra Asghar, Rubina Bhatti, Salman Bin Naeem

Library Philosophy and Practice (e-journal)

The present study was conducted with an aim to determine the level of library anxiety among the graduate students of Library and Information Science enrolled in public sector universities of Pakistan. The Multidimensional Library Anxiety Scale developed and validated by Dr. Doris Van Kampen, was used for this study. The data was collected from 511 students of MLIS studying in different library schools of Pakistan. The collected data was then analyzed statistically by using Statistical Package for Social Sciences (SPSS) version 22. The findings of the study indicated that graduate students of Library and Information Science exhibited overall a mild …


State V. Lira Respondent's Brief Dckt. 48863 Dec 2021

State V. Lira Respondent's Brief Dckt. 48863

Not Reported

No abstract provided.


Conatus, The Will To Persist: An Introduction, Jasmin Özel, Nikos Psarros Dec 2021

Conatus, The Will To Persist: An Introduction, Jasmin Özel, Nikos Psarros

Philosophy Faculty Research

The papers collected in this issue address a variety of aspects of the concept of conatus ranging from the explorations of its roots in early ancient Greek thought to its application on modern theories of democratic education. The conatus is a special relation between the parts of a monad and their subparts and the subparts of the subparts to infinity, which ensures that each part and subpart is a part of this monad and not of any other. As a fundamental trait of monadic existence, the conatus is manifested in a multiplicity of facets that sustain the persistence of any …


A New Conatus For The New World: Dewey’S Response To Perfectionist Conceptions Of Democratic Education, Jasmin Özel, Dave Beisecker, Joe Ervin Dec 2021

A New Conatus For The New World: Dewey’S Response To Perfectionist Conceptions Of Democratic Education, Jasmin Özel, Dave Beisecker, Joe Ervin

Philosophy Faculty Research

We argue for a reconsideration of the claim that Spinoza’s perfectionist conception of education was ushering in a form of radical humanism distinctly favorable to democratic ideals. With the rise of democratic societies and the corresponding need to constitute educational institutions within those societies, a more thoroughgoing commitment to democratic social ideals arose, first and foremost in American educational thought. This commitment can be seen especially in Dewey’s philosophy of education. Specifically, Dewey and Spinoza had strikingly distinct conceptions of the overall aims of schooling. While Spinoza takes the aim of education to be the perfection of a student’s original …


Computational Methods For Comparative Analyses Of Discourses, Zachary Stine Dec 2021

Computational Methods For Comparative Analyses Of Discourses, Zachary Stine

Theses and Dissertations

An underexplored aspect of the abundant linguistic data available for computational analysis is the potential for conducting large-scale comparative analyses between different discourses as a more rigorous complement to existing methods. A significant obstacle in comparative studies is the requirement that a researcher distinguish between discursive distinctions that are superficial and those that reflect deeper, structural relationships between the discourses being compared. In this dissertation, I describe two methodologies for comparing discourses in terms of their underlying structures, drawing on distributional semantic models and information theory. These methodologies are explored within three case studies in which the discourses of several …


Carbon-Based Nanostructured Materials For Energy And Water Purification Applications, Daniel Nde Dec 2021

Carbon-Based Nanostructured Materials For Energy And Water Purification Applications, Daniel Nde

Theses and Dissertations

High demand of energy consumption and a decline in available water sources are two critical issues our growing world is facing today. There are urgent needs to develop efficient ways to convert and store renewable energy and to remove contaminants from wastewater to obtain clean water. To solve the energy issue, hydrogen production from water splitting using renewable energy is one of the solutions, which calls for highly efficient water-splitting electrocatalysts. To solve the clean water issue, filtration membranes using graphene-based nanostructures have received increased attention. In the first project of this work, we use two approaches to synthesize the …


Photoelectrochemical Sensing Based On Zr-Mofs For Homocysteine Detection, Wen-Xia Dong, Guang-Ming Wen, Bin Liu, Zhong-Ping Li Dec 2021

Photoelectrochemical Sensing Based On Zr-Mofs For Homocysteine Detection, Wen-Xia Dong, Guang-Ming Wen, Bin Liu, Zhong-Ping Li

Journal of Electrochemistry

Due to the independent form of the light source and detection system, photoelectrochemical (PEC) sensor has the advantages of low background, high sensitivity and simple operation. So far, PEC systems have been widely used in the fields including the actual detection of metal ions, biological antibodies or antigens in environmental pollutants. When the photosensitive material is irradiated by a light source with an energy being equal to or greater than its band gap, electrons (e-) transition occurs from the valence band to the conduction band, leaving a hole (h+), at the same time, the generated electron-hole …


Structure Analysis Of Pemfc Cathode Catalyst Layer, Rui-Qing Wang, Sheng Sui Dec 2021

Structure Analysis Of Pemfc Cathode Catalyst Layer, Rui-Qing Wang, Sheng Sui

Journal of Electrochemistry

The sluggish oxygen reduction reaction (ORR) on the cathode of the proton exchange membrane fuel cell (PEMFC) has always been one of the key factors limiting its commercialization. The optimization of the cathode catalytic layer structure plays an important role in improving fuel cell performance and reducing production costs. In this paper, two different catalysts (platinum nanoparticles (Pt-NPs) and platinum nanowires (Pt-NWs)) were prepared by using catalyst coated substrate (CCS) method. By constructing a double-layer catalytic layer structure, we analyzed the effect of different catalytic layer structures by performing a single cell test. The results showed that the dense platinum …


How Far Does It Go? Understanding Efficacy Of Off-Campus Remote Access Services: Use Case Of Knimbus And Myloft, Ritu Sharma, Amanpreet Kaur, Sarita Gulati, Atasi Sinhababu Assistant Librarian, Rupak Chakravarty Dec 2021

How Far Does It Go? Understanding Efficacy Of Off-Campus Remote Access Services: Use Case Of Knimbus And Myloft, Ritu Sharma, Amanpreet Kaur, Sarita Gulati, Atasi Sinhababu Assistant Librarian, Rupak Chakravarty

Library Philosophy and Practice (e-journal)

E-resources are the backbone of the learner community in this information superfluous era. Digital technology has made remote access to the E-resources more easy, speedy, and comfortable. The advent of technology has made the libraries add new resources to their existing collection. For the academic community, remote access to the e-resources has become a very important part of their education and research, especially in this pandemic period. Library users are keen on searching and retrieving information stored/viewed from a distance or stored in remote locations. Remote login access to online library e-resources is the best practice that helps the users …


Gata Now!, Georgia Southern University Dec 2021

Gata Now!, Georgia Southern University

Athletics: News & Publications

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Developing Specialization Model Applications For High School Students, Agus Triyanto, Septinda Rima Dewanti, Widya Juwita Sari Dec 2021

Developing Specialization Model Applications For High School Students, Agus Triyanto, Septinda Rima Dewanti, Widya Juwita Sari

Jurnal Kajian Bimbingan dan Konseling

This study aims to produce a model application of specialization for the majors of high school students. The research method used is the Borg and Gall development research method. The research procedure was carried out by conducting a literature review and preliminary study, planning, developing, validating, revising, testing on research subjects, revising, and finalizing and socializing the application specialization model. The research instrument used is a rating scale. Data analysis was carried out by averaging expert judgments on applying the specialization model that had been developed. In addition, data were also obtained from the results of student interest. The expert …


I Am Tired Of Teaching: Relationship Between Teachers’ Boredom And Their Psychological Disorders During Covid-19 Pandemic, Imam Ariffudin, Ajeng Intan Nur Rahmawati Dec 2021

I Am Tired Of Teaching: Relationship Between Teachers’ Boredom And Their Psychological Disorders During Covid-19 Pandemic, Imam Ariffudin, Ajeng Intan Nur Rahmawati

Jurnal Kajian Bimbingan dan Konseling

The continuous practice of online learning potentially carries boredom and negative effects on teachers’ psychology. This study investigates the effects of boredom on teachers’ psychological disorders during online learning. This correlational study used an explanatory design, involving 113 teachers from different educational levels (junior, senior, and vocational schools) in Malang, Indonesia. The participants were selected through cluster random sampling technique. The data collection process was carried out using two standardized instruments, the DASS 21 (Depression, Anxiety, and Stress Scale) and ABS-10 (Academic Boredom Scale). The obtained data were analyzed using correlation and linear regression analysis to examine the relationship and …


Indonesian Adaptation Of The Multicultural School Counseling Behavior Scale, Endang Rifani, Munik Yuni Artika, Indrajati Kunwijaya, Haris Yuftika Hani Dec 2021

Indonesian Adaptation Of The Multicultural School Counseling Behavior Scale, Endang Rifani, Munik Yuni Artika, Indrajati Kunwijaya, Haris Yuftika Hani

Jurnal Kajian Bimbingan dan Konseling

School counselors should possess multicultural competence as an important aspect in the implementation of guidance and counseling services. Counseling services require school counselors to empower students who have different cultural backgrounds from theirs. The Multicultural School Counseling Behavior Scale (MSCBS) is a scale to measure the school counselors’ multicultural competence represented by their attitudes and behavior in implementing guidance and counseling services in schools. This study aims to adapt the MSCBS into Indonesian, considering the limited multicultural competency measuring tool for school counselors that includes the attitudes and behavior of school counselors in counseling. The research subjects were 257 junior …


‘Co-Ainm Na Taca Seo An-Uiridh’: Dugald Macnicol’S Caribbean Lament For Argyll, Nigel Leask, Peadar Ó Muircheartaigh Dec 2021

‘Co-Ainm Na Taca Seo An-Uiridh’: Dugald Macnicol’S Caribbean Lament For Argyll, Nigel Leask, Peadar Ó Muircheartaigh

Studies in Scottish Literature

This article examines a Gaelic song written in 1816 in St. Lucia by a Scottish Gaelic-speaking army officer from Argyll, Dugald MacNicol (1791-1844), sketching MacNicol's life and military career in the Caribbean, in the Royal West Indian Rangers and later in the 1st Royals (Royal Scots Regiment), placing the song in relation to other Gaelic poems of emigration and exile, and printing a newly-edited text of MacNicol's song alongside the authors' English translation.


Evaluating The Use Of The L1 In A French Language Classroom, Joyce Esther Hiaumiti Guidi Dec 2021

Evaluating The Use Of The L1 In A French Language Classroom, Joyce Esther Hiaumiti Guidi

Theses and Dissertations

Researchers have explored how different balances of first language (L1) and target language (TL) use in a foreign language classroom impact students' fluency and proficiency in TL acquisition. Research has shown that the use of the L1 in a foreign language classroom is done in order to determine the most effective way to raise the proficiency of second language learners to the level that is expected within their classrooms (Lee & Muncie, 2006). The use of the L1 is not something that is uncommon, even in the highest levels of foreign language instruction, although some believe it could inhibit learner …


The Sonora Substellar Atmosphere Models. Ii. Cholla: A Grid Of Cloud-Free, Solar Metallicity Models In Chemical Disequilibrium For The Jwst Era, Theodora Karalidi, Mark Marley, Jonathan J. Fortney, Caroline Morley, Didier Saumon, Roxana Lupu, Channon Visscher, Richard Freedman Dec 2021

The Sonora Substellar Atmosphere Models. Ii. Cholla: A Grid Of Cloud-Free, Solar Metallicity Models In Chemical Disequilibrium For The Jwst Era, Theodora Karalidi, Mark Marley, Jonathan J. Fortney, Caroline Morley, Didier Saumon, Roxana Lupu, Channon Visscher, Richard Freedman

Faculty Work Comprehensive List

Exoplanet and brown dwarf atmospheres commonly show signs of disequilibrium chemistry. In the James Webb Space Telescope (JWST) era, high-resolution spectra of directly imaged exoplanets will allow the characterization of their atmospheres in more detail, and allow systematic tests for the presence of chemical species that deviate from thermochemical equilibrium in these atmospheres. Constraining the presence of disequilibrium chemistry in these atmospheres as a function of parameters such as their effective temperature and surface gravity will allow us to place better constraints on the physics governing these atmospheres. This paper is part of a series of works presenting the Sonora …


Solution-Processed Flexible Broadband Zno Photodetector Modified By Ag Nanoparticles, N. P. Klochko, K. S. Klepikova, I. V. Khrypunova, V. R. Kopach, I. I. Tyukhov, S. I. Petrushenko, S. V. Dukarov, V. M. Sukhov, M. V. Kirichenko, A. L. Khrypunova Dec 2021

Solution-Processed Flexible Broadband Zno Photodetector Modified By Ag Nanoparticles, N. P. Klochko, K. S. Klepikova, I. V. Khrypunova, V. R. Kopach, I. I. Tyukhov, S. I. Petrushenko, S. V. Dukarov, V. M. Sukhov, M. V. Kirichenko, A. L. Khrypunova

Faculty Research, Scholarly, and Creative Activity

In this work, we present flexible broadband photodetectors (PDs) fabricated by a deposition of nanostructured zinc oxide (ZnO) films on polyimide (PI) substrates by using cheap and scalable aqueous method Successive Ionic Layer Adsorption and Reaction (SILAR). In order to increase the long-wavelength absorption of the nanostructured ZnO layer, we created its intrinsic defects, including oxygen vacancies by post-treatment at 300 °C in vacuum and thus the light-sensitive material ZnO/PI was obtained. Then we applied silver nanoparticles (Ag NPs) from a silver sol onto a nanostructured ZnO film, which were visualized using SEM in the form of spheres up to …


Concurrent Achilles Tendon Vibration And Tibial Nerve Stimulation To Estimate Persistent Inward Current Strength In Motoneurons, Denis César Leite Vieira, Amilton Vieira, Matheus Avelino Dos Santos, Rafael Rodrigues Da Cunha, Victor Lage, Anthony J. Blazevich, Martim Bottaro Dec 2021

Concurrent Achilles Tendon Vibration And Tibial Nerve Stimulation To Estimate Persistent Inward Current Strength In Motoneurons, Denis César Leite Vieira, Amilton Vieira, Matheus Avelino Dos Santos, Rafael Rodrigues Da Cunha, Victor Lage, Anthony J. Blazevich, Martim Bottaro

Research outputs 2014 to 2021

Vibratory (Tvib) and sustained (Tsust) torque responses to concurrent Achilles tendon vibration and neuromuscular electrical stimulation applied over the muscle belly (vib+stim) are used as indicators of motoneuron facilitation and, theoretically, persistent inward current strength. However, neuromuscular electrical stimulation (NMES) applied to the nerve trunk may potentiate motoneuronal excitability more than muscle belly NMES, yet it remains unclear whether NMES applied over the nerve evokes robust Tvib and Tsust responses when used during the vib+stim protocol. This study tested whether a nerve-targeted vib+stim protocol elicits Tvib and Tsust responses in the ankle plantar flexors with acceptable intra- and inter-session reliability. …


Cyclic Voltammetric Simulations On Batteries With Porous Electrodes, Xue-Fan Cai, Sheng Sun Dec 2021

Cyclic Voltammetric Simulations On Batteries With Porous Electrodes, Xue-Fan Cai, Sheng Sun

Journal of Electrochemistry

Lithium-ion batteries (LIBs) are among the most widely used energy storage devices. Whole-cell modeling and simulations of LIBs can optimize the design of batteries with lower costs and higher speeds. The Pseudo-Two-Dimensional (P2D) electrochemical model is among the most famous whole-cell models and widely applied in LIB simulations. P2D model consists of a series of kinetic equations to model Li+/Li diffusion in working/counter electrodes and electrolytes, which are filled in the porous electrodes and separator, and reactions at the interface of electrolyte and active particles. The traditional applications of P2D model, however, are limited to the cases where …


Effect Of Aluminum Alloy Surface Modification On Adhesion Of The Modified Polyurethane Coating And Its Corrosion Protective Performance, Xian-Yin Kuang, Shao-Qiang Jin, Yan-Hui Cao, Yan-Mei Zhang, Shi-Gang Dong, Long-Hui Zhu, Li-Wen Lin, Chang-Jian Lin Dec 2021

Effect Of Aluminum Alloy Surface Modification On Adhesion Of The Modified Polyurethane Coating And Its Corrosion Protective Performance, Xian-Yin Kuang, Shao-Qiang Jin, Yan-Hui Cao, Yan-Mei Zhang, Shi-Gang Dong, Long-Hui Zhu, Li-Wen Lin, Chang-Jian Lin

Journal of Electrochemistry

The ordinary organic coatings on aluminum alloy usually encounter a problem of low adhesion to the substrate, which results in destruction and failure of the long-term protective performance of the anticorrosion systems. The surface modification of aluminum alloy is able to enhance the adhesion of organic coating on aluminum alloys, and to improve their protective performance. In this work, a combined surface modification of anodic oxidation and mussel adhesion protein/CeO2/3-aminopropyltriethoxysilane composite film (MCA) was developed on the aluminum alloy. The adhesion of modified polyurethane coated on the treated aluminum alloy and its corrosion protective performance were evaluated comprehensively …


Functional Sulfate Electrolytes Enable The Enhanced Cycling Stability Of Nati2(Po4)3/C Anode Material For Aqueous Sodium-Ion Batteries, Shu-Jin Li, Zhi-Kang Cao, Wen-Kai Wang, Xiao-Han Zhang, Xing-De Xiang Dec 2021

Functional Sulfate Electrolytes Enable The Enhanced Cycling Stability Of Nati2(Po4)3/C Anode Material For Aqueous Sodium-Ion Batteries, Shu-Jin Li, Zhi-Kang Cao, Wen-Kai Wang, Xiao-Han Zhang, Xing-De Xiang

Journal of Electrochemistry

Aqueous sodium-ion batteries show promising application in fields of large-scale storage of intermittent renewable energies owing to the earth-abundant sodium resources and incombustible aqueous electrolytes. Primary factors determining whether they can be commercially utilized are low cost and long lifetime. Among current electrode materials, NASICON-type NaTi2(PO4)3 arouses wide interests as an anode material for aqueous sodium-ion batteries as it offers a high specific capacity, fast Na-transport ability and reasonable working potential, however, suffering from insufficient cycling performance caused by severe dissolution of active materials in traditional aqueous electrolytes. In this work, a functional sulfate electrolyte …


Influence Of Heat Treatment Time On Cathode Material Cr8O21 For Lithium Battery, Jiu-Kang Teng, Qing-Jie Wang, Liang Zhang, Hong-Mei Zhang, Xiao-Tao Chen, Peng Zhang, Jin-Bao Zhao Dec 2021

Influence Of Heat Treatment Time On Cathode Material Cr8O21 For Lithium Battery, Jiu-Kang Teng, Qing-Jie Wang, Liang Zhang, Hong-Mei Zhang, Xiao-Tao Chen, Peng Zhang, Jin-Bao Zhao

Journal of Electrochemistry

Chromium oxide (Cr8O21) cathode material for lithium batteries was synthesized by thermal decomposition of chromium trioxide (CrO3) at high temperature. The electrochemical properties of chromium oxide depended on the time and temperature during the heat treatment. Pure phase chromium oxide was prepared, and the effects of heat treatment time on the structures and electrochemical properties of Cr8O21 were systematically studied. The first discharge mechanism of chromium oxide in lithium batteries was explored, and the results were similar to that in lithium-sulfur batteries. The crystal phases and electrochemical properties of the prepared …


Effect Of Glycol Based Coolant Pollution On Pem Fuel Cells Stack And Recovery Measures, Cong-Yi Zhu, Xiao-Hui Li, Quan-Quan Gan Dec 2021

Effect Of Glycol Based Coolant Pollution On Pem Fuel Cells Stack And Recovery Measures, Cong-Yi Zhu, Xiao-Hui Li, Quan-Quan Gan

Journal of Electrochemistry

As the heat conduction medium of fuel cell cooling system, coolant is very important for the thermal management of fuel cell stack. In practical application, coolant leakage into the stack often occurs. Due to the randomness of fault location of components, the location of coolant leakage is uncertain, which may occur on the cathode side or anode side of some or all single cells. The main effects of coolant pollution on fuel cell stack are as follows: the output of open circuit voltage decreases sharply, the consistency of single cells voltage decreases and so on, which seriously affects the normal …


Formation And Morphological Evolution Of Nanoporous Anodized Iron Oxide Films, Jin-Wei Cao, Nan Gao, Zhao-Qing Gao, Chen Wang, Sheng-Yan Shang, Yun-Peng Wang, Hai-Tao Ma Dec 2021

Formation And Morphological Evolution Of Nanoporous Anodized Iron Oxide Films, Jin-Wei Cao, Nan Gao, Zhao-Qing Gao, Chen Wang, Sheng-Yan Shang, Yun-Peng Wang, Hai-Tao Ma

Journal of Electrochemistry

The preparation of iron oxide films with nanoporous structure by anodization has attracted much attention for its potential applications. However, the formation mechanism of porous structure during anodization is still unclear. In this paper, the composition of anodic current during the formation of nanoporous anodized iron oxide film was analyzed in combination with the current density-potential response (I-V curve) and the derivation of Faraday’s law. The results showed that the anodic current consisted of an ionic current (leading to the migration of ions to form oxide) and an electronic current (leading to the oxygen evolution), and the …


Copper Nanoparticles In-Situ Anchored On Nitrogen-Doped Carbon For High-Efficiency Oxygen Reduction Reaction Electrocatalyst, Hui-Fang Yuan, Yue Zhang, Xing-Wu Zhai, Li-Bing Hu, Gui-Xian Ge, Gang Wang, Feng Yu, Bin Dai Dec 2021

Copper Nanoparticles In-Situ Anchored On Nitrogen-Doped Carbon For High-Efficiency Oxygen Reduction Reaction Electrocatalyst, Hui-Fang Yuan, Yue Zhang, Xing-Wu Zhai, Li-Bing Hu, Gui-Xian Ge, Gang Wang, Feng Yu, Bin Dai

Journal of Electrochemistry

Compared with noble metal platinum (Pt)-based catalysts, inexpensive non-noble metal electrocatalysts have attracted extensive attention for oxygen reduction reaction (ORR). Herein, chitosan as a kind of biomass resource rich in nitrogen and carbon was used to prepare nitrogen-doped carbon (N-C) and N-C in-situ anchored by copper nanoparticles (Cu/N-C). The as-obtained N-C and Cu/N-C nanoparticles were successfully used as non-noble eletrocatalysts tested for ORR. Compared with the N-C, the Cu/N-C showed the high surface area of 607.3 m 2·g-1 with the mean pore size of 2.5 nm and the pore volume of 0.40 cm3·g-1 …


Importance Of Haresfoot Clover (Trifolium Arvense) As A Nitrogen Fixer In Semi-Arid Grasslands Of New Zealand, C. C. Boswell, W. L. Lowther, P. R. Espie Dec 2021

Importance Of Haresfoot Clover (Trifolium Arvense) As A Nitrogen Fixer In Semi-Arid Grasslands Of New Zealand, C. C. Boswell, W. L. Lowther, P. R. Espie

IGC Proceedings (1977-2023)

The aim of the study was to determine the distribution of annual haresfoot clover (Trifolium arvense) in a depleted indigenous short tussock grassland catchment in the dry subhumid MacKenzie Basin, South Island, New Zealand. Haresfoot clover was present on all landscapes, and widely distributed on lower sunny aspects, suggesting that it is an important component of the nitrogen cycle in these environments even in the absence of fertiliser application. The study was conducted during an atypically moist summer when a bloom of the annual clover occurred. Nitrogen inputs will vary with landscape and spring/summer rainfall and it is …