bluuebunny/crossref_metadata_2025 huggingface dataset:
Progress in Montmorillonite Functionalized Artificial Bone Scaffolds: Intercalation and Interlocking, Nanoenhancement, and Controlled Drug Release
Authors: Li DongYing , Li Pin , Xu Yong , Guo WenMing , Li MengQi , Chen MeiGui , Wang HaoYu , Lin HaiMei
Published: January 2022

Montmorillonite (MMT) has attracted widespread attention in the field of bone tissue engineering in recent years because of its interlayer domain structure. The progress of MMT application was reviewed in this article. Concretely, the application of MMT was mainly explained from the structural characteristics, mechanical strengthening mechanism, organic functionalization, and drug loading and release. Firstly, the polar polymer molecular chains are easily induced into the interlayer domain of MMT to form an interlock and achieve the mechanical strengthening of scaffold. Secondly, the “sandwich” sheet structure of MMT can be exfoliated into graphene‐like MMT nanosheets, providing a nanostrengthening effect for polymer matrix. In addition, MMT’s interlayer domain provides a favorable environment for the loading and slow release of drugs, and it is an ideal platform for the functionalization of bone scaffolds. More importantly, MMT can be easily modified by cation exchange and chemical reaction to further improve the compatibility of composites: such as strengthening mechanical interlocking and nanostrengthening effects and achieving controllable loading and release of drugs. It is expected to provide a reference for improving the application of bone tissue engineering scaffolds.
Intelligent Supply Chain Management Modules Enabling Advanced Manufacturing for the Electric‐Mechanical Equipment Industry
Authors: Chien Chun-Hua , Chen Po-Yen , Trappey Amy J. C. , Trappey Charles V.
Published: January 2022

Electric‐mechanical equipment manufacturing industries focus on the implementation of intelligent manufacturing systems in order to enhance customer services for highly customized machines with high‐profit margins such as electric power transformers. Intelligent manufacturing consists in using supply chain data that are integrated for smart decision making during the production life cycle. This research, in cooperation with a large electric power transformer manufacturer, provides an overview of critical intelligent manufacturing (IM) technologies. An ontology schema forms the terminology relationships needed to build two intelligent supply chain management (SCM) modules for the IM system demonstration. The two core modules proposed in this research are the intelligent supplier selection and component ordering module and the product quality prediction module. The intelligent supplier selection and component ordering module dispatches orders that match the best options of suppliers based on combined analytic hierarchy process (AHP) analysis and multiobjective integer optimization. In the case study, the intelligent supplier selection and component ordering module demonstrates several acceptable Pareto solutions based on strict constraints, which is a very challenging task for decision makers without assistance. The second module is the product quality prediction module which uses multivariate regression and ARIMA to predict the quality of the finished products. Results show that the R square values are very close to 1. The module shortens the time for the company to accurately judge whether the two semifinished iron cores for the product meet the quality requirements. The component supplier selection module and the finished product quality prediction module developed in this research can be extended to other IM systems for general high‐end equipment manufacturers using mass customization.
[Retracted] Investigation on Inorganic Salts K2TiF6 and KBF4 to Develop Nanoparticles Based TiB2 Reinforcement Aluminium Composites
Authors: Mohanavel Vinayagam , Kumar K. Ravi , Sathish T. , Velmurugan Palanivel , Karthick Alagar , Ravichandran M. , Alfarraj Saleh , Almoallim Hesham S. , Sureshkumar Shanmugam , JoshuaRamesh Lalvani J. Isaac
Published: January 2022

In the current research, AA6082 aluminium alloy matrix composites (AAMCs) incorporated with various weight fractions of titanium diboride (0, 3, 6, and 9 wt%) were prepared via an in situ casting technique. The exothermic reaction between inorganic powders like dipotassium hexafluorotitanate (K2TiF6) and potassium tetrafluoroborate (KBF4) in molten Al metal contributes to the development of titanium diboride content. The manufactured AA6082‐TiB2 AAMCs were evaluated using a scanning electron microscope (SEM) and X‐ray diffraction (XRD). The mechanical properties and wear rate (WR) of the AAMCs were investigated. XRD guarantees the creation of TiB2 phases and proves the nonappearance of reaction products in the AMCs. SEM studies depict the even dispersion of TiB2 in the matrix alloy. The mechanical and tribological properties (MTP) of the AAMCs showed improvement by the dispersion of TiB2 particles. The WR decreases steadily with TiB2 and the least WR is seen at nine weight concentrations of TiB2/AA6082 AAMCs. Fabricated composites revealed 47.9% higher flexural strength and 14.2% superior compression strength than the base AA6082 alloy.
Total Seepage Resistance Model of Water-Displacing Diffusion of Slurry in Series and Parallel Fractures
Authors: Hu Yang , Xie Junhe , Ge Jian , Liu Gang
Published: January 2022

With the increase in mining depth, potential water inrush in the limestone-fractured aquifers of Taiyuan formation and Ordovician formation becomes seriously threatened to the mining process. Grouting reinforcement, as a common prevention method, has been widely used in mine water inrush prevention. In this paper, a model of “seepage resistance” is proposed for the slurry diffusion in a single fracture and the theoretical expression on the seepage resistance corresponding to slurry with different flow patterns is conducted. The total seepage resistance model of water-displacing diffusion by slurry in series and parallel fractures is established. With the Lagrange interfacial tracing method, the control equations of water-displacing diffusion by slurry in fracture networks are derived, which get mutually validated with the theoretical results.
Clinical Observation of Salvianolic Acid Combined with Panax Notoginseng Saponins Combined with Basic Nursing Intervention on Cerebral Ischemia-Reperfusion Injury in Rats
Authors: Zheng Zhaopeng , Liang Shanshan , Sun Shasha , Liu Pengfei , Yu Ling
Published: January 2022

Objective. To analyze the clinical observation of salvianolic acid combined with panax notoginseng saponins combined with basic nursing intervention on cerebral ischemia-reperfusion injury in rats and its effects on the expression of apoptosis-related proteins Bcl-2, Bax and caspase-3. Methods. A total of 72 male Wistar rats were randomly divided into sham, ischemia/reperfusion (I/R), edaravone (Eda), salvianolic acid (SA), panax notoginseng saponins (PNS), and SA+PNS group. After administration for 5 days, the neurological function, cerebral infarction volume, brain index, and brain water content of rats were observed. ELISA kit assay was applied to measure the levels of IL-1β, IL-6, IL-8, TNF-α, MDA, SOD, GSH-Px, and T-AOC activity. Western blotting assay was used to detect the protein levels of p-53, NF-κB, Bcl-2, Bax, and Caspase-3 in the brain tissues surrounding infarction lesion. Results. Compared with sham group, the mNSS score, brain index, brain water content, infarction volumes, MDA activity, and the levels of IL-6, IL-8, TNF-α and IL-1β as well as the protein levels of p-53, NF-κB, Bax and Caspase-3 were significantly increased, while the levels of Bcl-2 protein, SOD, GSH-Px and T-AOC were significantly decreased in I/R group. However, these levels were reversed in SA group, PNS group and SA + PNS group. Moreover, these changes in SA + PNS group were more obvious than those in SA and PNS group, and the differences were statistically significant. Conclusions. SA, PNS and they combined with basic nursing have protective effects on cerebral I/R injury, and the combination with basic nursing has better effects than that used alone. The mechanism may be to regulate the expression of downstream apoptotic proteins by inhibiting the TLR4/NF-κB signaling pathway, thereby reducing neurological damage in rats.
Radio and Radial Radio Numbers of Certain Sunflower Extended Graphs
Authors: Kaabar Mohammed K. A. , Yenoke Kins
Published: January 2022

Communication systems including AM and FM radio stations transmitting signals are capable of generating interference due to unwanted radio frequency signals. To avoid such interferences and maximize the number of channels for a predefined spectrum bandwidth, the radio-k-chromatic number problem is introduced. LetG=V,Ebe a connected graph with diameterdand radiusρ. For any integerk,1≤k≤d, radiok−coloring of G is an assignmentφof color (positive integer) to the vertices ofGsuch thatda,b+φa−φb≥1+k,∀a,b∈VG,whereda,bis the distance betweenaandbin G. The biggest natural number in the range ofφis called the radiok−chromatic number of G, and it is symbolized byrckφ. The minimum number is taken over all such radiok−chromatic numbers ofφwhich is called the radiok−chromatic number, denoted byrckG. Fork=dandk=ρ, the radiok−chromatic numbers are termed as the radio number (rnG) and radial radio number (rrG) ofG, respectively. In this research work, the relationship between the radio number and radial radio number is studied for any connected graph. Then, several sunflower extended graphs are defined, and the upper bounds of the radio number and radial radio number are investigated for these graphs.
Electrocardiogram Signal Classification in the Diagnosis of Heart Disease Based on RBF Neural Network
Authors: Fang Yan , Shi Jianshe , Huang Yifeng , Zeng Taisheng , Ye Yuguang , Su Lianta , Zhu Daxin , Huang Jianlong
Published: January 2022

Heart disease is a common disease affecting human health. Electrocardiogram (ECG) classification is the most effective and direct method to detect heart disease, which is helpful to the diagnosis of most heart disease symptoms. At present, most ECG diagnosis depends on the personal judgment of medical staff, which leads to heavy burden and low efficiency of medical staff. Automatic ECG analysis technology will help the work of relevant medical staff. In this paper, we use the MIT-BIH ECG database to extract the QRS features of ECG signals by using the Pan-Tompkins algorithm. After extraction of the samples,

K

-means clustering is used to screen the samples, and then, RBF neural network is used to analyze the ECG information. The classifier trains the electrical signal features, and the classification accuracy of the final classification model can reach 98.9%. Our experiments show that this method can effectively detect the abnormality of ECG signal and implement it for the diagnosis of heart disease.
Integrated Network Pharmacology and Experimental Validation Approach to Investigate the Therapeutic Effects of Capsaicin on Lipopolysaccharide-Induced Acute Lung Injury
Authors: Liu Peihui , Hao Jindou , Zhao Jie , Zou Rong , Han Juan , Tian Jia , Liu Wanqu , Wang Hao
Published: January 2022

An integrated method combining network pharmacology and in vivo experiment was performed to investigate the therapeutic mechanism of capsaicin (Cap) against acute lung injury. The potential key genes and signaling pathways involved in the therapeutic effect of Cap were predicted by the network pharmacology analyses. Additionally, the histological assessment, ELISA, and RT-qPCR were performed to confirm the therapeutic effect and the potential mechanism action involved. Our findings showed that TNF, IL-6, CXCL1, CXCL2, and CXCL10 were part of the top 50 genes. Enrichment analysis revealed that those potential genes were enriched in the TNF signaling pathway and IL-17 signaling pathway. In vivo experiment results showed that Cap alleviated histopathological changes, decreased inflammatory infiltrated cells and inflammatory cytokines, and improved antioxidative enzyme activities in the bronchoalveolar lavage fluid (BALF). Furthermore, Cap treatment effectively downregulated TNF, IL-6, NF-κB, CXCL1, CXCL2, and CXCL10 in lung tissue. Thus, our findings demonstrated that Cap has the therapeutic effect on LPS-induced acute lung injury in neonatal rats via suppression of the TNF signaling pathway and IL-17 signaling pathway.
On Topological Indices for Complex Indium Phosphate Network and Their Applications
Authors: Hui Wang , Sherin Lubna , Javed Sana , Khalid Sadia , Asghar Waqar , Fufa Samuel Asefa
Published: January 2022

A chemical compound in the form of graph terminology is known as a chemical graph. Molecules are usually represented as vertices, while their bonding or interaction is shown by edges in a molecular graph. In this paper, we computed various connectivity indices based on degrees of vertices of a chemical graph of indium phosphide (InP). Afterward, we found the physical measures like entropy and heat of formation of InP. Then, we fitted curves between different indices and the thermodynamical properties, namely, heat of formation and entropy. Curve fitting was done in MATLAB through different methods based on linearity and nonlinearity. Furthermore, we depicted our results numerically and graphically. These numerical systems may give an approach to concentrate on the thermodynamical properties of the compound design of InP at an exceptional level that will help understand the connection between framework measurement and these actions.
Exploring Relationships between Aroma, Tasty Components Properties, and Marketing Price of Chinese Cabernet Sauvignon Using Gas Chromatography Mass Spectrum and High-Performance Liquid Chromatography
Authors: Feng Tao , Ma Ningyuan , Wang Kai , Zhuang Haining , Chen Da , Yao Lingyun , Song Shiqing , Wang Huatian , Sun Min , Hou Feina , Xu Jianying
Published: January 2022

The purpose of this paper was to find the relationship between aroma and tasty component properties and marketing price of Chinese Cabernet Sauvignon red wines. One-way ANOVA was used to compare differences (

p
<
0.05

) between concentrations of phenolic compounds, organic acids, monosaccharides and total acidity, total polyphenols, total sugars, and total reducing sugars in various Chinese Cabernet Sauvignon red wines with different marketing prices. Principal component analysis revealed that the presence of higher amount of alcohol appears to be the characteristic feature for the wine samples, which have a lower marketing price, and the higher level of esters and acids were the features of the wine samples with a higher marketing price. Moreover, samples in marketing price area 39 to 79 RMB and samples in marketing price area 188 to 258 RMB can be totally clustered into their own marketing price area by volatile compounds with OAV > 1. Acetic acid, succinic acid, and glucose made a great contribution to most of the wine samples in the marketing price area ranging from 39 to 79 RMB, and glycerol, fructose, and malic acid were the features of most wine samples in the marketing price area ranging from 188 to 258 RMB. Concentrations of total acidity, total polyphenols, total sugars, total reducing sugars, and alcohol content seemed to have no significant distinguishing (

p
<
0.05

) ability on different samples belonging to different marketing price areas.
Analysis of Structural, Optical, and Aquaphobic Properties of Zirconium Oxide Nanofilms by Varying Sputtering Gas
Authors: Sujit Kumar , Vikramaditya Dave , Velmurugan K. Vetri , Bhaskarrao Yakkala , Singh Rupali , Pant Bhasker , Sharma Amit Kumar , Singh Hari Kumar , Mulugeta Lijalem
Published: January 2022

The problem of contamination in ceramic insulators was found to be frequent in power transmission lines and transformers. The key aim was to develop aquaphobic zirconium oxide (ZrO2) thin films using DC reactive magnetron sputtering over glass insulators to mitigate contamination problems. This was achieved by introducing O2 and Ar gas in the sputtering chamber, and three properties, namely, structural, optical, and aquaphobic, were inspected by changing the sputtering gas ratio (oxygen/argon). These properties were chosen based on comparison with the bulk ZrO2. These deposited ZrO2 samples were identified by X-ray diffractometer (XRD), atomic force microscopy (AFM), UV-Vis-NIR spectrophotometer, and contact angle goniometer (CAG). For all the samples, coatings were found to be limpid, clear, and aquaphobic. Coarseness (62.813 nm) and the contact angle made by water to the surface (107.45°) were found utmost as deposited at 0.25 oxygen/argon gas ratios. The transmittance and band gap were also found to be 90% and 5.33 eV, respectively, at this particular ratio.
Abstract TMP97: The Burden Of Neurological Diseases In Asia - An Analysis For The Global Burden Of Disease Study 2019
Authors: Chang Yoonkyung , Song Tae-Jin
Published: February 2022

Background:
The global burden of diseases (GBD) of neurological disorders is increasing worldwide. The purpose of this study is to determine the burden of neurological disorders, including incidence, prevalence, death, disability-adjusted life-years (DALY), years lived with disability, and years of life lost between 1990 and 2019 in Asia regions.

Methods:
The GBD study is updated every year, and the most recent version provides the burden of diseases according to age, gender, and region from 1990 to 2019. Our study included 13 neurological diseases including stroke, Alzheimer's disease and other dementias, Parkinson's disease, brain and central nervous system cancer, idiopathic epilepsy, motor neuron disease, multiple sclerosis, migraine, tension-type headache, meningitis, encephalitis, tetanus, other neurological disorders. All rates were described as age-standardized using the GBD standard. Data were described using 95% uncertainty intervals (UIs) and changes from 1990 to 2019 as percent (95% UIs) provided by the GBD website.

Results:
In 2019, DALYs of neurological diseases were 64.4 million in South-East Asia (95% UI 45.2-94.2) and 85.0 million in Western pacific regions (95% UI 63.0-118.5). The three neurological diseases with the highest DALYs in WHO South-East Asia and WHO Western pacific regions in 2019 were stroke, migraine, Alzheimer's disease and other dementias. DALYs of stroke and Alzheimer's disease and other dementia, Parkinson’s disease, brain and central nervous system cancer, multiple sclerosis, migraine, and tension type headache increased in both regions in 2019 compared to 1990. Infectious diseases such as tetanus, meningitis, encephalitis decreased in both regions. The age-standardized rate of stroke incidence (-10%, 157 to 141 in South-East Asia, -12%, 211 to 186 in Western Pacific) and mortality (-30%, 135 to 95 in South-East Asia, -42%, 180 to 104 in Western Pacific) decreased markedly in both regions.

Conclusion:
This study demonstrated the burden of neurological diseases in Asia. To reduce the burden of neurological disease, a strategy suited to the reality of each country will be needed, and this study can serve as the cornerstone of the strategy.
Pentecostal Engagement with the Concept of Salvation Employed by African Neopentecostalism
Authors: Nel Marius
Published: February 2022

This article argues for the necessity of continuing discourse between established Christianity and African Neopentecostalism to benefit both. The seeming popularity of the African Neopentecostal prosperity gospel is attributed to its ability to contextualise the gospel to Africans regarding the highly appreciated material, physical, and spiritual wellness values. It consists of being hopeful that a positive future will realise because of an entrepreneurial attitude that provides a handle on bettering the future and consistent tithing that guarantees God’s blessings. Strong preacher-prophets proclaim the message with great authority. Its soteriology is described in terms of the Deuteronomist concept of guaranteed blessings that emphasises the material and immediate providence. It challenges established churches to reconsider how they view the relationship between faith and materiality, the doctrine of divine providence, contextualisation of the gospel and denial of the supranatural. The dialogue will also benefit Neopentecostalists when it confronts some abuses, eschatological expectations, understanding of time, understanding of evil in God’s sovereignty and involvement in ecological challenges.
Re-Examination of Oxidation in Al-Mg Alloys Containing High Contents of Mg at High Temperatures Using Phase Diagrams
Authors: Ha Seong-Ho , Shah Abdul Wahid , Kim Bong-Hwan , Yoon Young-Ok , Lim Hyun-Kyu , Kim Shae K.
Published: January 2022

In this study, the oxidation of Al–Mg alloys with Mg content ranging from 3 mass% to 5 mass% at a high temperature was re-examined using phase diagrams was re-examined using phase diagrams plotted using thermodynamic software. The as-cast microstructures of all examined alloys
showed the formation of the β–Al3Mg2 phase, and especially, its phase fraction considerably increased with increasing Mg content up to 5 mass% from 3 mass%. After oxidation at 500 °C under the ambient atmospheric conditions for 50 h, all the oxidized
cross-sections had coarse and dark areas nonuniformly distributed in the matrix, which were found to be the oxide clusters containing Mg-based oxides. With increasing Mg content, the higher Mg content was involved in promoting the growth of Mg-oxide clusters and possibly associated with the
change in the fraction of the β–Al3Mg2 phase. The Al–5 mass%Mg alloy formed higher fractions of MgO and spinel during the oxidation.
Effect of Mg on the Oxide Growth of Al–Cu Alloys at Elevated Temperature
Authors: Ha Seong-Ho , Shah Abdul Wahid , Kim Bong-Hwan , Yoon Young-Ok , Lim Hyun-Kyu , Kim Shae K.
Published: January 2022

In this study, we investigated the effect of Mg on oxide growth of Al-Cu alloys at elevated temperatures. Results show that Al2Cu as eutectic phase was distributed in the as-cast microstructure of Mg-free Al-5 mass%Cu alloy, whereas Al2CuMg_S phase was formed by
eutectic reactions with the addition of Mg. Scanning electron microscopy and thermodynamic calculations revealed that after oxidation at 500 °C for 30 h, Al-5 mass%Cu alloy had only slightly oxidized surfaces, whereas significantly grown oxide clusters formed as the Mg content increased.
MgO and spinel were the main oxides in the Mg-containing alloys, whereas no Cu-based oxide was involved in the oxidation of the alloys. Only Al2CuMg_S phase contributed to the oxidation of the base metal and the formation of Mg-based oxides. The Al-5 mass%Cu alloy showed no inter-products
with Mg-based oxides, including MgO and spinel.
Fabrication of Rhodium Coated Ni–Co Microelectromechanical Systems Probe Tips Using Electroplating Method
Authors: Kang Na-Young , Lee Seo-Hyang , Lee Jae-Ho
Published: January 2022

Rhodium (Rh) was electroplated at various conditions for wear-resistant probe card tips to improve performance and durability. When direct current (DC) was applied for the electroplating, the cracks were developed on the electrodeposited Rh due to the high residual stress. Pulse current
(PC) method was applied to reduce cracks. Two conditions of on:off were applied and the crack free surfaces were obtained. The surface hardness of the deposits was over HV 800, it is 60% higher than that of Ni–Co deposits. To secure the thermal stability at high temperature, heat treatments
were conducted at 300 °C. The addition of additives such as sulfamic acid and sodium dodecyl sulfate (SDS) can improve the ductility of Rh/Ni–Co deposits to overcome the difference of coefficient of thermal expansion (CTE) between the electrodeposits and the substrate. Finally, crack
free Rh coated Ni-Co probe tips were fabricated using PC with addition of additives.
Investigations on the Carbon Nanotube Paste Made by the Optimized Ball-Milling Method and Its Applications for the e-Beam Source
Authors: Yoon Tae Rym , Ahn Seong Joon , Kim Ho Seob , Ahn Seungjoon
Published: January 2022

The carbon nanotube (CNT) has the outstanding mechanical/chemical properties, which makes it a promising electron source for various applications such as the field emission display (FED), the microcolumn, and the X-ray tube. In this work, we have developed the CNT paste by applying
the noble ball-milling method to the paste mixer. The newly developed CNT paste was used to fabricate the CNT field emitter whose electric characteristics were evaluated by observing the I–V curve and long-term stability of the emitter. The new CNT paste showed much better electrical
characteristics than those of the conventional CNT paste. We also used the CNT tip as a source of the electron beam (e-beam) of the microcolumn and found that the operating range of the e-beam was enhanced by 100% compared to that of the conventional microcolumn where the tungsten tip was
used as the e-beam source. By replacing the tungsten tip with the CNT tip, we could not only obtain more flexibility in design of the microcolumn but also remove the alignment problem between the emitter tip and the source lens.
Design and Control for Four-Variable Chaotic Nanoelectronic Circuits Based on DNA Reaction Networks
Authors: Wang Yanfeng , Ji Haoping , Sun Junwei
Published: January 2022

Control of chaotic nanoelectronic circuit is a typical nonlinear problem. In this paper, we present a four-variable chaotic oscillatory nanoelectronic circuit by the cascade of multiplication, adjustment and elimination DNA chemical reaction modules. Furthermore, a proportional integral
(PI) controller of four-variable nonlinear chaotic nanoelectronic circuit is realized based on catalysis and annihilation DNA chemical reaction modules. These DNA modules are realized by a series of DNA strand displacement (DSD) reactions and simulated by Visual DSD. Oscillatory time domain
waveforms of four-variable chaotic oscillatory nanoelectronic circuit could be generated by the designed chaotic oscillatory chemical reaction modules. The proposed PI controller could be added for chaotic nanoelectronic circuits to stabilize oscillatory signals and it has robustness to the
initial value changes of chaotic nanoelectronic circuit.
Quantitative Evaluation of the Influence of Densification Process on Bamboo Cell Walls
Authors: Yuan Tiancheng , Zhang Tao , Xiao Xiao , Han Xin , Wang Zhaoshun , Hao Xiaomeng , Liu Xiaorong , Wang XinZhou , Liu Xianmiao , Li Yanjun
Published: January 2022

The densification process, namely, a combination of compression and thermal modification is an effective way to enhance the mechanical and physical properties of bamboo in the field of construction. In the work, surface morphology, wet chemistry method, and micro-mechanical properties
were analyzed after the densification process, which showed that the densification process resulted in a decline in the porosity of bamboo cell wall. The content of hemicellulose and cellulose decreased, while the relative content of lignin increased. XPS was used to carry out the quantitative
analysis of the change of C/O ratio. The results of nanoindentation showed that the elastic modulus and hardness increased from 13.5 GPa and 0.7 GPa for the control to 17.7 GPa and 0.9 GPa for the densified bamboo. These findings confirmed that the densification process makes a positive contribution
to micro-mechanical properties of bamboo cell walls. In addition, densification may also be related to the development of bamboo-based materials.
Sensitivity Analysis of Gallium Nitride Quantum Dot LED
Authors: Sumathi K. , Nagarajan K. K. , Srinivasan R.
Published: January 2022

The main objective of this research is to present the impact of several doping and geometrical parameters on the performance of the GaN/AlGaN quantum dot-based light-emitting diode by employing numerical 3D simulations. The sensitivity coefficients of the parameters have been utilised
to rank them. Four significant performance parameters were used in this research, such as, responsivity optical gain, internal quantum efficiency, and input power. The quantum dot’s bottom radius is observed to be the most relevant geometrical parameter for optical gain and internal
quantum efficiency. Furthermore, the nanocolumn radius is the most important parameter for quantum dot responsivity and input power. The Nanocolumn radius is found to be the most critical parameter, based on the overall ranking.
NO2 Gas Sensor Based on Disk-Like Nanocomposite for an Application on Vehicle Exhaust
Authors: Dong Xuan , Zhou Wei , Ren Chunxiao , Liu Yan
Published: January 2022

As is known, nitrogen oxide (NO2) is a kind of harm gas, which is the main gas from the vehicle exhaust. It is of great importance to effectively detect the NO2 gas. In this work, the NiO–ZnO hexagonal micro disk composite were successfully synthesized through
a simple hydrothermal route and this composite was used as the gas-sing material for the fabrication of NO2 gas sensor. The gas sensing properties of the NiO–ZnO composite based gas sensor at different working temperatures to NO2 gas were monitored. The maximum
gas response and optimal working temperature were recorded. The tested results demonstrate that the NiO–ZnO composite based gas sensor displays the excellent gas response property for the NO2 gas, which may exhibit potential in NO2 detection.
Lightweight 3D-TiO2 Nanotube Arrays on Ti Mesh for Promoted Photoelectrochemical Water Splitting
Authors: Meng Ming , Qin Nan , Sun Lingling , Chen Yuanyuan , Xu Kun , Zhang Yan , Liu Mengyuan , Du Shanshan , Liu Kuili , Feng Yamin , Wang Gaoliang , Yuan Honglei
Published: January 2022

Lightweight 3D-TiO2 nanotube arrays are successfully prepared via a simple anodization method. The lightweight 3D-TiO2 nanotube arrays yield a photocurrent density of 0.57 mA/cm2 at 0.22 Vvs. Ag/AgCl with Faradic efficiency of 100%,
which is 1.9 times larger than that of 2D-TiO2 NTAs. The boosted performance is attributed to 3D arrays, which not only can effectively absorb the incident, reflected and/or refracted light from any direction surrounding the wire, but also provide larger surface areas of electrode/electrolyte
junction. Moreover, the underlying Ti mesh serves as a direct channel for the rapid photoelectron-hole transport during the PEC water splitting process. This work offers a contribution to the practical applications of TiO2 nanotube-based photoanodes.
Theoretical and Experimental Research on the Adsorption Performance of Hydrogen Sulfide on the Surface of Stainless Steel
Authors: Zhu Huadong , Zhou Li , Li Xiaohong
Published: January 2022

In this paper, the macro-surface and SEM micro-surface of stainless steel were studied, and the absorption curve of stainless steel to H2S was tested at first. Then, the geometric structure based on the first-principles calculation method of DFT was optimized and the adsorption
of H2S molecules on the surface of stainless steel was calculated. H2S molecules could be spontaneously adsorbed to the surface of different types γ-Fe(111). H2S molecules could dissociate and adsorb owing to the vacancy defects, because the S–H
bond in H2S would break at the vacancy site. The absolute value of the adsorption energy was high, so the adsorption amount of H2S was larger. H2S would preferentially adsorb to vacancy defect positions. However, due to the limited number of vacancies, H2S
would gradually adsorb to other positions. While H2S molecules were adsorbed in a molecular state, dissociative adsorption was also proceeding. The absolute value of the adsorption energy was higher and the adsorption with the substrate was stronger. Moreover, the existence of vacancy
defects would facilitate the dissociative adsorption of H2S molecules.
Line Detection of Power Transmission Network Using Multi Photoelectric Sensors and Its Robustness Under Interaction
Authors: Geng Peng , Liu Yan
Published: January 2022

The characteristics of the layered reference model, physical layer, MAC layer and defined LR-WPAN network of IEEE802.15.4 are analyzed, and a set of power transmission line detection system based on wireless sensor network is designed. The network is mainly composed of photoelectric
sensors (acceleration sensor, displacement sensor). The system design includes the determination of detection content, the selection of sensors and the topological structure of wireless network. In addition, the hardware structure of the photoelectric sensor node is designed, and the small
current transformer is introduced to solve the problem of energy supply between multiple photoelectric sensors. Due to the complementary relationship between power system and sensor information system, the concepts of power information-dependent network and load capacity are introduced to
build a power sensor information-dependent network with the load. In the experiment, the positioning effect of different photoelectric sensor nodes in the detection system is analyzed. The results show that most photoelectric sensors have a good positioning effect, and the link in the line
can be self-organized according to the sensor node information; in the power sensor information-dependent network, the damage degree of the maximum load node is compared when it is attacked by the network; the damage degree of random attack is lower than that of deliberate attack, and the
dependent network architecture with easy connection has strong robustness. Since a single network has dependent edges, it is vulnerable to cascading failure attacks.
Design of New Over-Temperature Protection Light-Emitting Diode Driver Circuit and Improvement Method of Visual Design
Authors: Wang Ke , Kuang Caiyuan , Qian Chenyi
Published: January 2022

The overall design of light-emitting diode (LED) display control system was completed at first. For the problems of LED driver chip such as low accuracy of constant current output, high power consumption, poor stability, and single over-temperature protection function, the double temperature hysteresis and over-temperature buffer protection function of circuit were designed. The low-power constant-current module of LED driver module included an operational amplifier, a MOS tube with negative feedback control, and the driving current required to achieve high-precision reference current conversion. The temperature control points were set in hysteretic and overtemperature buffer modules for the working temperature, and power MOS tube was turned off in time to reduce the driving current to a constant driving current, thus reducing the power consumption of circuit. In addition, to improve the image quality of LED display, a visual refresh logic circuit was designed. The display cycle was divided into 32 segments by logic circuit, with 128 gray clock cycles in each segment, and duty ratio was controlled by 12 bits of gray data. In test, the multi-value output bandgap reference voltage was simulated at first. In range of –30 °C–130 °C, the fluctuation of voltage in this temperature range met the requirements of circuit. During simulation of buffer circuit of the LED driver module, it was found that output terminal can perform good voltage following, so as to meet the needs of circuit. The design of visual refresh logic circuit can greatly improve the refresh rate of pulse width modulation (PWM).
Theoretical Study of Infrared Nonlinear Optical Crystal BaGa4Se7 Tetragonal System
Authors: Dai Rong , Zhang Jin , Ning Jing , Wu Qiao , Zhang Lei , Zhang Fuchun , Zhang Qiang , Zhang Wei-Bin
Published: January 2022

The electronic structure and optical properties of BaGa4Se7 tetragonal crystals are systematically studied by first principles of density functional theory. The band gap (2.918 eV) of the tetragonal system of BaGa4Se7 is 1.12 times that of
the orthorhombic system by using the Heyd-Scuseria-Ernzerh (HSE06) method. The band structure showed that the top of the valence band was largely contributed by Ga 4s, 4p and Se 4p states, while the bottom of the conduction band was mainly comprised of Ga 4s, 4p,
Se 4p, and Ba 5d states. This wide band gap effectively avoid the two-photon absorption during laser pumping and increase the laser damage threshold of the material. The orbital coupling between Ga and Se atoms determines the optical properties of BaGa4Se7
tetragonal crystals, while Ba atoms make little contribution to the optical properties. The calculation of optical properties shows that the static birefringence (0.076) of the BaGa4Se7 tetragonal crystal is 1.2 times that of the orthorhombic crystal system. It shows
that the BaGa4Se7 tetragonal crystal material has excellent phase matching performance in a wide range of wavelengths. BaGa4Se7 crystal shows strong absorption and reflection characteristics in the ultraviolet region, and strong transmittance in
the infrared region. Theoretical results indicate that BaGa4Se7 is a very promising nonlinear optical crystal in the infrared region.
MicroRNA-119 Inhibitor-Loaded Nanoparticles Improve Non-Small Cell Lung Cancer and Suppress Metastasis Through Up-Regulation of Autophagy-Related Proteins
Authors: Xiao Yin , Xu ZhongLing , Wang Jue , He Xin , Zheng Guang
Published: February 2022

To explore the impact of targeted nanoparticles in progression of non-small cell lung cancer (NSCLC), we analyzed the interaction between MicroRNA-119 and autophagy-related (ATG) proteins. RT-qPCR was used to determine the expression of MicroRNA-119 and ATG in the normal lung tissues
and NSCLC tissues. The expression of MicroRNA-119 and ATG in the low-metastatic and high-metastatic NSCLC cells, and normal cells were also measured. The high-metastatic NSCLC cells were transfected with siRNA-NC and miR-NC, or treated with MicroRNA-119-inhibitor-loaded nanoparticles. Cell
proliferation and apoptosis were then assessed by flow cytometry, and invasion was evaluated by transwell assay. Upon treatment with oriented nanoparticles, the ATG expression was increased in NSCLC tissues and cells and MicroRNA-119 was down-regulated. Moreover, NM staging was positively
related to ATG expression and negatively related to MicroRNA-119 expression. Of note was that, the composite nanoparticles carrying MicroRNA-119 inhibitor decreased cancer cell proliferation and invasion, reducing ATG expression. Treatment with oriented nanoparticles decreased proliferation,
invasion, and metastasis ability of cells, and down-regulated the level of ATG in metastatic cells. Nanomaterials are characterized by large surface area and high degree of dispersion, high affinity and adhesion towards targets. In this study, our results demonstrated that the nanoparticles
modified with MicroRNA-119-inhibitor effectively decreased the expression of MicroRNA-119 and increased expression of ATG, to suppress cell invasion. These evidences may provide a novel insight into targeted therapy for NSCLC.
Comparison of Perioperative Outcomes Between Single-Port and Multi-Port Robotic Adrenalectomy
Authors: Fang Andrew M. , Fazendin Jessica M. , Rais-Bahrami Soroush , Porterfield John R.
Published: January 2022

Background

Single-port (SP) robotic surgery has been utilized in several surgical procedures. We aim to describe our institution’s approach and perioperative experience with SP robotic adrenalectomy and compare it to the traditional multi-port (MP) approach.

Methods

We retrospectively reviewed all patients who underwent robotic adrenalectomy by a single surgeon between March 2019 and March 2020. Patient demographic, perioperative factors, and pathologic outcomes were recorded and analyzed using t-tests, chi-square, or Fisher’s exact tests.

Results

Thirty-six patients underwent SP (n = 11) and MP (n = 25) robotic adrenalectomy. Age, body mass index, gender, operative time, major Clavien-Dindo complications, and margin status showed no differences. Patients undergoing SP adrenalectomy had a lower estimated blood loss (18.1 ± 13.0 vs 65.6 ± 95.0 cc, P = .02) and smaller lesion size (2.8 ± 1.3 vs 4.1 ± 1.8 cm, P = .04) compared to those undergoing MP.

Conclusions

SP adrenalectomy appears to be a feasible approach in select adrenal masses. Further studies are needed to establish its safety and cost effectiveness.
Towards Exceptionalism: The Communist Party of China and its Uses of History
Authors: Jacob Jabin T. , Subba Bhim B.
Published: January 2022

The Communist Party of China (CPC) completed 100 years of its existence in July 2021, with the last 70 plus years spent as the ruling party in China. The centenary occasioned a fresh consideration by the CPC of the challenges to its identity, legitimacy and power. Using select speeches and commentaries produced by the CPC in the context of the centenary, this article analyses how the Party deploys discourses on its history to articulate its concerns and promote its interests today. It also looks at how these interpretations of the Party’s history and role in China translate into a growing sense of exceptionalism in the Party-state. The article argues that despite frequent calls to ‘seek truth from facts’, an overriding desire to retain power is once again pushing the CPC down the path towards dogmatism.
Violence Against Politicians, Negative Campaigning, and Public Opinion: Evidence From Poland
Authors: Krakowski Krzysztof , Morales Juan S. , Sandu Dani
Published: January 2022

It is commonly viewed that violence against politicians increases support for the victim’s party. We revisit this conjecture drawing on evidence from an assassination of an opposition politician in Poland. First, we analyze engagement with Twitter content posted by opposition and government politicians using a difference-in-differences framework. Second, we use a public opinion survey collected in the days around the attack and compare party preferences of respondents interviewed just before and respondents interviewed just after the attack. Our results reveal decreased support for the victim’s (opposition) party relative to support for the government. To explain this finding, we show that the opposition antagonized the public by engaging in negative campaigning against the government over their politician’s assassination. Content analysis of tweets and news media confirms that citizens punished the opposition for their negative campaigning after the violence. Tentative evidence suggests that these effects could have had long-run political consequences.
Removal of heavy metals from aqueous solutions by modified waste silk
Authors: Mia Md Shipan , Yao Ping , Zhu Xiaowei , Zhang Jun , Xing Tieling , Chen Guoqiang
Published: January 2022

In order to reuse the waste fabric and develop a novel textile-based adsorbent for heavy metal removal, the waste silk fabric was modified by tannic acid (TA) and the prepared adsorbents were characterized using Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), and X-ray photoelectron spectroscopy (XPS) analysis. The removal of Cd(II), Cu(II), and Ni(II) ions from aqueous solutions was investigated using the modified silk fabric (TA-SF) under various conditions and the adsorption behavior of heavy metal ions was compared with the original silk fabric. The results showed that the maximum metal adsorption amounts reached 100% in 10 min. The adsorption isotherm models were demonstrated using Langmuir, Freundlich, and Temkin isotherm models, and the adsorption of TA-SF to Cd(II), Cu(II), and Ni(II) were well fitted with Langmuir isotherm than Freundlich and Temkin isotherm model. Moreover, the adsorption kinetics was well fitted with to the pseudo-first-order and pseudo-second-order kinetic models, and adsorption kinetics indicated that the former model was better suited than the latter. For 60 mg/L initial concentrations of Cd(II), Cu(II), and Ni(II) at pH 9.0, the adsorbents' maximum adsorption capacity was 8.03 mg g−1, 7.42 mg g−1, and 7.47 mg g−1, respectively. Within 5 min, the absorbed metal ions on TA-SF could mostly be desorbed. Moreover, TA-SF can adsorb heavy metal ions from dyeing aqueous solution, showing its capability of simultaneous removal of heavy metal and waste dyes. The results suggest that the lower-cost TA-SF could be an effective adsorbent for removing heavy metals from industrial wastewater.
Political theology beyond interruption: (re)discovering the ambiguity of the practice of theology
Authors: Harper Whitney
Published: January 2022

Recent research in the field of theology has sought to draw on voices and resources that serve to ‘interrupt’ the academic study, unsettling the history of primarily white, straight, male voices. However, much of this work has further served to delineate theology from the contexts and experiences within which it develops and becomes anew. Using research in narrative theory and the work of Thomas Bauer, this article seeks to reframe the task of political theology today not in terms of interruption, but rather as a narrative centred on the ambiguity of the tradition, one that serves to highlight the constructed nature of the practice of theology and its sources.
Churchgoers and the Fair Trade Town: an analysis in terms of social and spiritual capital
Authors: Dawson Mark
Published: January 2022

In this article I analyse the Fair Trade Town project in terms of both social and spiritual capital. In bringing together diverse sections of communities, the work that churchgoers carry out in promotion of Fair Trade can serve as an example of the generation of social capital. However, the concept of social capital fails to capture the role of core Christian concepts, such as justice and the love of neighbour, in the practice of Fair Trade. Spiritual capital, the motivation for churchgoers to carry out the work that they do for Fair Trade and other action for social justice, has an important role to play. Spiritual capital can serve as a source of bringing communities together, but also as a form of division, as economic paradigms are challenged. I identify a key role for the spiritual capital that fuels Christian action for the Fair Trade Town and other work for social justice: it has the potential to contribute to addressing the degraded nature of contemporary public debate.
Laryngeal schwannoma: A case report and literature review
Authors: Zheng Yongbo , Lou Lin , Zhao Yu
Published: January 2022

Laryngeal schwannomas are rare benign neurogenic tumors of the larynx. They cannot be detected in the early stages because disease onset is asymptomatic. This case of laryngeal schwannoma provided a reference for clinical diagnosis and treatment strategy. A 24-year-old man presented with a 3-year history of hoarseness and sore throat for 6 months. Laryngoscopy and computed tomography showed submucosal bulging of the right ventricular fold in the right paraglottic space. The patient underwent tracheotomy first, followed by laryngotomy. The edema of the laryngeal mucosa was significantly alleviated, with normal movement of the bilateral vocal cords on the 10th day after surgery. The tracheal tube was removed at the time of discharge. The hoarseness had disappeared at the end of the first month after surgery. The effective treatment of laryngeal schwannoma involves complete resection with surgery while protecting the integrity of the larynx and restoring laryngeal function. The indication for surgery should be strictly controlled to avoid damage to the mucosa and structures of the larynx.