bluuebunny/crossref_metadata_2025 huggingface dataset:
Implementasi Sistem Pertanian Berkelanjutan Kelompok Tani Subur Tani Mandiri
Authors: Nurkhotija Ghea
Published: October 2023

Kabupaten Indramayu merupakan salah satu wilayah di Jawa Barat yang memiliki predikat sebagai lumbung padi nasional, dan bahkan termasuk dalam wilayah yang menghasilkan beras terbanyak di seluruh Indonesia. Besarnya potensi pertanian komoditas padi di Kabupaten Indramayu tidak membuat wilayah ini terlepas dari berbagai permasalahan di bidang pertanian seperti ketersediaan pupuk, rendahnya unsur hara, hingga distribusi air irigasi. Salah satu solusi dari berbagai permasalahan diatas adalah dengan melakukan perubahan pada sistem pertanian dari yang sebelumnya konvensional menjadi lebih ramah lingkungan dan berkelanjutan. Pengabdian ini merupakan pengabdian secara deskriptif, dengan menggunakan metode pendekatan kualitatif. Fokus dari penelitian ini adalah bagaimana penerapan sistem pertanian ramah lingkungan pada sawah di lahan binaan CSR PT PLN Nusantara Power Indramayu. Manfaat yang diperoleh masyarakat antara lain:  segi lingkungan, penggunaan pupuk organik mendukung tercapainya kelestarian kesuburan tanah, dan tentu saja perubahan perilaku petani yang tidak lagi membakar jerami; dari segi ekonomi dan sosial, melalui sistem pertanian yang lebih ramah lingkungan memang belum mampu meningkatkan produksi pertanian, akan tetapi tidak juga menguranginya. Di sisi lain sistem pertanian ini memudahkan para petani untuk memenuhi kebutuhan pupuk dan nutrisi lahan ditengah permasalahan kelangkaan pupuk yang kerap terjadi. Manfaat ekonomi yang didapatkan oleh petani timbul dari margin modal produksi antara penggunaan pupuk kimia sepenuhnya dengan penggunaan kombinasi pupuk organik secara bertahap
Optimalisasi Bantaran Sungai Sebagai Wisata Waduk Edukatif Di Desa Simorejo Widang Tuban
Authors: Suradji Muchamad , Hudi Moh. , Musyafa' Ahmad Ahsanul , Muhyidin Ahmad , Rohmah Nella Miftakhur
Published: October 2023

Pengabdian ini bertujuan untuk mengetahui sejauhmana optimalisasi bantaran sungai sebagai waisata waduk edukatif di Desa Simorejo, Widang, Tuban. Pengabdian ini menggunkan pola pendampingan komunitas dengan menggunakan pendekatan Asset Based Community Developmen (ABCD), yang mengutamakan pemanfaatan aset dan potensi yang ada disekitar dan dimiliki oleh pemuda atau komunitas masyarakat. Metode ABCD memiliki lima langkah kunci untuk melakukan proses riset pendampingan di antaranya: Discovery (Pengkajian), Dream (Impian), Design (prosedur), Define (Pemantapan Tujuan), dan Destiny (Self Determination). Adapun Hasil pengabdian ini berjalan dengan baik. Hal itu dapat dilihat dari adanya partisipasi dan dukungan masyarakat mulai dari perencanaan sampai pada pelaksanaan program pemberdayaan dalam membuat wisata waduk edukatif ini. Masyarakat memiliki peran besar dalam program kerja pengabdian ini, rancangan konsep wisata waduk edukatif ini diharapkan mampu menjadi daya tarik tersendiri bagi Desa Simorejo. Wisata waduk edukatif ini dikembangkan guna menarik masyarakat untuk bisa memanfaatkan aset dan potensi yang dimiliki desa untuk hal-hal yang produktif, konsumtif serta edukatif. Wisata waduk edukatif ini secara tidak langsung menjadikan Desa Simorejo berhasil dalam membranding dan mempromosikan potensi Desa Simorejo sebagai ikon desa wisata lewat promosi dari mulut ke mulut hingga media sosial yang dapat dilihat secara virtual melalui Instagram
Implementasi Sistem Agrosilvopastura untuk Peningkatan Produktivitas dan Kesejahteraan Peternak Lokal
Authors: Fahmi Raizal , Wilujeng Sri , Susila Rian , Luth Fahriza , Widodo Prasetyo
Published: October 2023

Agrosilvopastura merupakan sebuah sistem agroforestri yang menggabungkan pertanian, peternakan, dan keberlanjutan lingkungan. Sistem ini memberikan manfaat ekonomi, sosial, dan lingkungan yang signifikan. Dalam konteks pengabdian masyarakat, yang dilaksanakan oleh Fakultas kehutanan Unwim yang bekerjasama dengan Yayasan Rimbawan Indonesia (YRI) megimplementasikan sistem agrosilvopastura untuk meningkatkan produktivitas peternakan lokal dan kesejahteraan peternak di Desa Jingkang, Kecamatan Tanjungmedar, Kabupaten Sumedang. Tujuan pengabdian kepada masyarakat untuk mengenalkan konsep dan manfaat sistem agrosilvopastura kepada peternak lokal, membantu peternak dalam menerapkan sistem agrosilvopastura di lahan mereka, meningkatkan produktivitas dan pendapatan peternak melalui implementasi sistem agrosilvopastura, serta meningkatkan kesadaran tentang pentingnya konservasi lingkungan dan keberlanjutan pertanian. Kegiatan ini dilaksanakan 2022 – 2023 dengan beberapa tahap, yaitu identifikasi dan seleksi peternak lokal, pelatihan dan pendampingan, penanaman pohon dan desain agrosilvopastura, pengelolaan dan pemeliharaan sistem agrosilvopastura, dan evaluasi dan monitoring. Hasil kegiatan ini adalah masyarakat Desa Jingkang memiliki pengetahuan, kesadaran dan keterampilan tentang agrosilvopastura yang dapat meningkatkan produktivitas dan kesejahteraan peternak lokal.

 

Kata kunci: agrosilvopastura, peternak lokal, keberlanjutan lingkungan
The possible anti-inflammatory properties of hydro-ethanolic extract of Oregano
Authors: Moghrovyan Armenuhi , Ginovyan Mikayel , Avtandilyan Nikolay , Parseghyan Lilya , Voskanyan Armen , Sahakyan Naira , Darbinyan Anna
Published: October 2023

Backgrounds: Plant compounds are of great value due to their analgesic, anti-inflammatory, cytotoxic, and other characteristics. This study aimed to examine the chemical composition and impact of the Origanum vulgare hydro-ethanolic extract on nociceptive behavior and anti-inflammatory properties in in vivo mice models.Methods: Gas chromatography-mass spectrometry and high-performance liquid chromatography techniques were employed to determine the major active phytochemicals of the extract. The effects of the extract on nociceptive reactions were evaluated using formalin and hot plate tests, while the anti-inflammatory effect was determined using the Carrageenan test. The methyl-thiazolyl-tetrazolium assay was applied to analyze growth-inhibiting properties of the extract on MCF-7 breast cancer cells.Results: Various flavonoids and organic acids were identified in O. vulgare hydro-ethanolic extract. The extract possessed low cytotoxicity on MCF-7 cells as only 1 mg/mL or higher concentrations of the extract induced considerable growth inhibition. The formalin and hot plate tests demonstrated some sensitizing effects of the investigated extract (5 mg/kg) on mice. Moreover, the Carrageenan test revealed pronounced anti-inflammatory properties of the O. vulgare extract.Conclusion: The potent biological activity of the wild oregano herb extract makes it a promising source for the development of medicinal preparations. Keywords: Nociceptive behavior, anti-inflammatory effect, Oregano, flavonoids, chemical composition, cytotoxicity, in vivo mice models.
CT Scan Value Of Temporal Bone In Assessment Of Congenital Deafness
Authors: Ghayad Haidar A. , Badr Hani M. , Al-Hili Mohammed
Published: October 2023

Background:. Computed tomography (CT) of the temporal bone is the first-line recommended imaging modality for SNHL. Because it can identify inner ear malformations that may be responsible for hearing impairment.Objectives: To demonstrate CT abnormalities encountered in children with congenital deafness and to assess the value of CT in the prediction for cochlear implantation. Also to evaluate the incidence and types of inner ear abnormalities in children with congenital deafness identified with CT scan for implantation difficulties.Patients & Methods: This is a cross sectional study carried out during the period from October 2009 to October 2010 at Baghdad medical city complex on children patients who are suffering from congenital deafness. The study included 60 patients (120 ears), 27 males and 33 females, were evaluated by CT scan of temporal bone before cochlear implants.Results: Most of the cases undergo CT scan examination were normal (80%). Enlargement of the vestibular aqueduct is most common (10% ) causes of congenital inner ear malformations, followed by cochlear malformation (8.3%) while dysplasia of lateral semicircular canal found in (3.3%) of cases.Conclusion: High resolution CT scan is recommended in all patient for pre implant analysis of temporal bone morphology due to its reliability and easy availability. CT scan is the modality provided critical information on abnormalities of the otic capsule, pneumatisation of the mastoid, middle ear abnormalities, cochlear ducts patency and vascular abnormalities- thus helping to assess the suitability of the ear for implantation, determine the side to be implanted and to find any associated abnormality which could adversely influence the surgery or post operative period.
Descriptive study of incidence of side effects of Pegylated interferon alpha therapy and their relation to age, gender, duration of treatment and type of hepatitis in 50 Iraqi patients.
Authors: AL-Khazraji Khalid A.
Published: October 2023

Background: Hepatitis C and B is common disease all over the world and their chronicity is a social and medical problem so medical treatment by alpha interferon can change the mortality and morbidity.Object: Identify the incidence of the side effects of pegylated interferon alpha in a sample of Iraqi patients with chronic hepatitis B&C and their relation to age, gender, duration of treatment and type of hepatitis comparing them with the literatures from other countries.Patients and methods:A descriptive case series study was conducted on 50 patients, 24 male and 26 female, with established diagnosis of hepatitis B(20 patients)and C(30 patients) who attend Baghdad Teaching hospital and Gastroenterology and Hepatology centre in Baghdad between the period of January 2009 and October 2010 with follow up over at least 3 months.A direct interview with detailed history and thorough clinical examination with some simple laboratory investigation were done to determine any of the documented side effects of alpha interferon therapy or discover new side effects not elicited in the studies done on other populations.Results: Flu-like illness is the most common side effect (84%), followed by fatigue, anorexia, local reaction and neuropsychiatric side effects while Neutropenia, lymphopenia and thyroiditis are rare.There is no significant difference in the incidence of side effects between age groups with the exception of constipation which occurs more in younger age group. Arthralgia, palpitation, eczema, itching and rash increase in incidence with prolonged duration of treatment.There is no significant difference in incidence of side effects between both genders apart from hypertension (more in female) and dizziness (more in male).There is no significant difference in incidence of side effects between patients with hepatitis B&C but anemia occurs more in patients with hepatitis C and tremor reported more in patients with hepatitis B.Conclusion: Almost all patients on treatment with interferon-based regimen will experience adverse events that can threaten good adherence. Flu-like illness is the most common side effect (84%), followed by fatigue, anorexia, local reaction and neuropsychiatric side effects (depression, nervousness, insomnia).The higher incidence of anemia in patients with hepatitis C is mostly due to concomitant ribavirin therapy.Age, gender, type of hepatitis and duration of treatment can affect the incidence of interferon therapy.
Green Energy Management System Built by AI Technique to Support the Regional Sustainable Development in Japan
Authors: Cong Richao , Fujiyama Atsushi , Matsumoto Toru
Published: October 2023

To support regional decarbonization, this study focuses on designing an optimal green energy management system in which renewable energy (onshore, offshore wind power, solar power, and biomass power) are made as prioritized sources to meet the temporal energy demand. The optimization algorithm is applied in the Kitakyushu City of Japan. At first, the annual renewable energy supply and energy demand were estimated and disaggregated to an hourly level, considering the temporal patterns. The storage battery is introduced to rebalance the supply and demand sides. Through its control, the surplus of balance between renewable energy and demand is stored by the battery without supplying from grid power. Meanwhile, the grid power is only supplied when the total green energy supply is less than the demand. The minimum carbon dioxide (CO2) emission is defined as the objective function. The constraints are considered as including the battery capacity, charging and discharging balance, hourly and annual supply potential for each type of energy, and hourly supply should meet the demand. As our solution, 99.9% of onshore wind power, 56.8% of offshore wind power, 69.8% of solar power, and 45.4% of biomass power were essential in a year to meet each hourly demand and achieve the minimum CO2 emissions.
Thermal Performance of Parabolic Trough Solar Collectors in Lhasa
Authors: Dong Xiaodong
Published: October 2023

With the adoption of “Carbon peak and carbon neutrality” in China, parabolic trough solar collectors have attracted considerable research attention. This study proposed an experimental system scheme based on a system to test the thermal performance of PTSHCS s in Lhasa. Furthermore, a series of experimental studies were conducted on the system which is used to test the collectors’ thermal performance in the plateau environment. The actual operation data of the collector under typical weather conditions was collected, and the collector’s thermal performance in plateau environment was analyzed. The results revealed that the solar radiation intensity, the temperature of the oil at the inlet of metal collector tube, and the flow rate of the oil to transfer heat were closely related to the heat collection efficiency of PTSHCS. A strong positive correlation exists between the solar radiation intensity and the thermal efficiency of the collector. When the rate of the fluid to transfer heat increased from 5m3/h to 7m3/h, the thermal efficiency of the collector increased significantly, and the maximum instantaneous thermal efficiency reached 66%. When the inlet temperature of the oil used to transfer heat increased from 80°C to 170°C, the thermal performance exhibited a general downward trend.
Research on Thermal Performance Evaluation Methods for CPR1000 Steam Generator
Authors: Chen Jie , Zhao Qingsen , Xia Peng , Peng Weidi , Tian Fujun , Yang Jie
Published: October 2023

The corrosion products in the secondary circuit of the nuclear power plant continuously accumulate and are deposited on the steam generator (SG) secondary side, which will have a great impact on the safe and economic operation of the nuclear power plant. Although the deposits thickness of a CPR1000 unit is relatively low, it has seriously reduced the heat transfer performance of the tube bundle. Based on the SG heat transfer calculation model and the matching margin of steam generator and steam turbine, a normalized SG thermal performance monitoring and evaluation model of CPR1000 unit is established. Based on the actual operation data of a CPR1000 unit, the corresponding treatment measures and suggestions are put forward. This model can predict the subsequent operation trend of SG, so as to increase the safety and economy of nuclear power plants.
Biodegradation of Milled Wood Lignin by a Newly Isolated Bacterial Strain, Raoultella Ornithinolytica MP-132 from the Gut of Termite
Authors: Li Feng , Wang Runping , Xu Ping , Huang Dena
Published: October 2023

In the process of converting lignocellulose to biofuels, lignin is one of the major obstacles. To overcome this recalcitrance, exploring bacteria with higher delignification efficiency or novel enzymes has been highlighted. In this study, eight bacteria isolated from termite guts were evaluated for their lignolytic potential. Among the isolates, Raoultella ornithinolytica MP-132 was selected for further investigation based on its capacity to use a broad range of monomeric and dimeric aromatic compounds as carbon source. Subsequently, the structural evolution of milled wood lignin (MWL) was evaluated by FTIR and TGA. The analysis results showed the cleavage of various chemical linkages, destruction of aromatic ring structures, side-chain oxidation and demethoxylation or demethylation by comparing the different peak intensities in the corresponding curve of each sample. In addition, the thermal stability of MWL increased after bacteria treatment, indicating the structural change in MWL caused by treatment with strain MP-132. These results demonstrated that Raoultella ornithinolytica MP-132 may be a potential candidate for the lignocellulosic bioenergy industry.
Impact Assessment of Wind Energy Resources of Hangzhou Bay Offshore Wind Power Project
Authors: Chen Minhao , Hu Longping , Xie Xiao , Ji Xiaodong
Published: October 2023

In the development and construction of offshore wind farms, it is essential to consider various factors such as wind energy resources, hydrogeology, grid-connected conditions, transportation, construction and installation, socio-economic environment, and ecological protection. Additionally, the meteorological conditions at sea should also be evaluated. This study aims to evaluate the situation of offshore wind energy and wind resources in Hangzhou Bay. The evaluation was conducted based on the relevant methods in the “Wind Farm Wind Energy Resource Evaluation Method” and the “National Wind Energy Resource Evaluation Technical Regulations”. The analysis was carried out using meteorological observation data and ERA5 reanalysis data. Through the analysis of WS, average wind power density, representative annual wind energy resource analysis, and maximum WS during the reproduction period of meteorological stations indicate that the sea area is rich in wind energy resources. The main wind direction is consistent with the main wind direction, which is conducive to fan arrangement.
Justification of a New Method of Start-Up Powerful Electric Motors of Pumping Units of Irrigation Pumping Stations
Authors: Dadabaev Shakhboz , Ismoilov Ismoil , Mirzoev Dabir
Published: October 2023

The main purpose of the work is to propose and justify a new promising start-up of powerful high-voltage electric motors for pumping units of irrigation pumping stations. This method of starting electric motors helps to increase the technical life of electrical equipment of powerful irrigation pumping stations based on the use of soft start systems for high-voltage electric motors. In the process of research, methods of analysis of technological processes of pumping stations, methods of mathematical and computer modeling of AC electric drive systems were used in the work. As a result of the study, computer models have been developed to study the characteristics of asynchronous and synchronous electric drives of pumping stations with their direct and smooth start. A soft start system for high-voltage AC motors of irrigation pumping stations based on a current inverter is proposed and justified. The results of the study indicate an increase in the reliability and durability of the electrical equipment of the irrigation pumping station, which primarily depends on their technical resource. Factors affecting the technical life of electrical equipment of large irrigation pumping stations are considered to be starting transients that occur when large pumping units are started. The method proposed in this paper for starting high-voltage electric motors of irrigation pumping stations eliminates the negative effects of transient modes on the operation of electrical equipment. As a result, the technical resource and reliability of the power system of the irrigation pumping station as a whole increase.
Research on Efficiency Power System Fault Response Based on Intelligent Predictive Calculation
Authors: Wei Ling
Published: October 2023

Fault response of power system is an essential component of power grid operation, and response efficiency is also an important part of high-quality service provided by power supply enterprises. To enhance the efficiency of failure analysis in distribution network, an intelligent pre-judgment calculation method of the distribution network based on measurement information and distribution system is proposed. After obtaining the user’s electricity consumption and other information, the useful data is used to train the back propagation (BP) neural network and predict the user’s repair data and other information. Finally, the distribution network repair platform judges the fault through the prediction information obtained by the BP neural network. This mechanism greatly shortens the response time of power system faults, improves the traditional distribution network repair mode, and thereby improves the efficiency of power system fault response.
Grid-Forming Battery Storage System Applications in Power Systems with High Renewable Energy Shares
Authors: Xu Quanhai , You Jieshan , Zhao Wencheng , Zhou Yihua , Shen Leilei
Published: October 2023

With the announcement of the Carbon Peaking and Neutrality policy in China, the development of wind and solar is expected to accelerate in the coming years. The increasing penetration level of inverter-interfaced generators has caused an impact on the security and stability of power systems, several regions in China have encountered weak-grid challenges in 2020–2022. The weak grid problem caused by inverter-interfaced generators is a common challenge worldwide, and grid-forming control technologies are considered one promising solution. This paper presents a review of the current attempts and applications of Grid-Forming Battery Energy Storage System (GFM-BESS) and an outlook of its deployment in China.
Study of Soil Salinity in Typical Areas of the Yellow River Delta Based on Remote Sensing Images
Authors: Liang Lixuan , Zhang Jing
Published: October 2023

In this paper, the typical areas of Kenli County, Lijin County and Hekou in Dongying City, Shandong Province were selected as the study area. To make better use of the soil in the saline area of the Yellow River Basin, the soil of related types of areas can be better developed and utilized. According to the measured data of soil salinity, soil conductivity and other physical and chemical index data and remote sensing image data in the study area. The remote sensing data were processed and correlated with the total salinity, and the bands that are sensitive to soil salinity were obtained. The preliminary results indicate that more measured data and more data indicators are still needed to refine the model.
Multi-Objective Optimization Study of Dual-Fuel Engine Emissions and Economy
Authors: Ma Cheng , Li Jie , Pang Lixin , Feng Jianyuan
Published: October 2023

In the multi-objective performance optimization process for dual-fuel engines, the conflict between emissions and fuel efficiency is a consideration. To find a satisfactory compromise among many optimal solutions, reduce the difficulty of selecting solutions, and respond to different needs, a decision-making preference optimization strategy is introduced. The reliability prediction algorithm of the micro-ignition diesel/natural gas (NG) dual-fuel engine is built using support vector machines (SVM). The performance prediction model is combined with the optimization algorithm, and the preference information of the decision-maker (DM) is introduced into the optimization process, to guide the population evolution process to the direction that the DM is interested in, and achieve multi-objective preference optimization. Selecting nitrogen oxide (NOx) emission and braking specific fuel consumption rate (BSFC) as the optimization targets, the optimal Pareto front surface is obtained. It can be seen from the simulation results that after introducing the decision preference, the evolution of the population can proceed in the direction of interest to the DM. Preference optimization can be achieved by rationally configuring the preference strength parameter δ, the weight vector w, and the reference point g. The combination of control parameters corresponding to the two preferences was downloaded to the ECU for bench test, and compared with the original data, it was found that when low emissions are preferred, the NOx emission meets the IMO Tier-III limit under all working conditions, and the average NOx emission is 1.22g·(kW·h)-1, which is 78.9% lower than the original engine. At the same time, it was found that even with lower emissions, fuel consumption was reduced by 4.94% compared to the original engine. The preference for lower fuel consumption is 3.68% lower than the preference for lower emissions, but the deterioration of NOx emissions is obvious.
Determination of Aniline in Soils and Sediments by Headspace Solid-Phase Microextraction Coupled with Gas Chromatography-Mass Spectrometry
Authors: Ge Xuan , Fang Hongke , Meng Xin
Published: October 2023

Aniline is an important chemical raw material that is highly toxic and can cause serious pollution to the environment if discharged without effective treatment. In this study, headspace solid-phase microextraction coupled with gas chromatography-mass spectrometry was found to be effective in extracting aniline from soil and sediment samples. An HP-INNOWAX polar column, 85 μm CAR-PDMS fiber head, pure water solution with pH of 12, an extraction temperature of 75°C, an extraction time of 55 min, an extraction speed of 20 mm/s, and a resolution time of 3 min was selected. The method exhibited good linear in the range of 0–250 ng, with a relative standard deviation of the relative response factor of 3.9%. The blank spiked recoveries of aniline ranged from 110% to 116% with a relative standard deviation of 2.09%. The spiked recoveries of soil and sediment ranged from 81.4% to 92.0% and 92.2% to 109% respectively, with detection limits of 1.5 μg/kg. The method is simple, practical, accurate and reliable, and can be used for the determination of aniline in soil and sediment.
Determination of Residual Solvents in Acetylisovaleryltylosin Tartrate Based on Computer Chromatography
Authors: Liu Xia , Jia Yuxi , Ku Xiong
Published: October 2023

Acetylisovaleryltylosin Tartrate is a kind of macrolide antibiotic used for mycoplasma infection in pigs and chickens. The 2017 edition of “Quality Standard for Veterinary Drugs” clearly stipulates the characteristics, identification, inspection and content determination of Acetylisovaleryltylosin Tartrate. In this paper, firstly, the framework of computer chromatography and method verification are introduced. And then computer chromatography is applied to the determination of residual solvents in Acetylisovaleryltylosin Tartrate to process and analyze the output chromatographic data, and to determine the type and quantity of residual solvents. Finally, the determination of residual solvents in Acetylisovaleryltylosin Tartrate is actually analyzed. The residues of ethanol, acetone, dichloromethane, toluene, butyl acetate, and N-N dimethylformamide are determined by computer chromatography. The method is simple and has high column efficiency with accurate and reliable results, which meets the limit requirements of Pharmacopoeia. The chromatographic conditions and solution configuration in the residual solvent of Acetylisovaleryltylosin Tartrate are used to carry out a systematic applicability test to judge whether the blank solvent interferes with the reference substances of six residual solvents. In addition, the residual solvents in Acetylisovaleryltylosin Tartrate are analyzed before the test. Then computer gas chromatography is used to determine the six residual solvents in Acetylisovaleryltylosin Tartrate. The final result is that all six residual solvents meet the specified limits.
First Principles Study of Different Atomic Exposure Terminals for Cu Adsorption on the Attapulgite (200) Surface
Authors: Chen Chuanmin , Wang Fuyu , Yang Weijie
Published: October 2023

The geometric structure, electronic structure, and charge transfer of transition metal Cu atoms adsorbed on different adsorption sites on three different termination surfaces (Mg/Al-O, Si1-O, and Si2-O) of Attapulgite (ATP) (200) slab were systematically studied by density functional theory (DFT) calculation method. The calculated results show that the adsorption energy of Cu adsorbed on the O atom Hcp site of the ATP (200) Mg/Al-O termination surface has the smallest adsorption energy and the most stable adsorption structure; the calculations and analysis of the density of states reveal that the strong p-d orbital hybridization occurs between Cu-O at the best adsorption site on the termination surface of ATP (200) Mg/Al-O, which makes the surface adsorption system very stable; through the calculation and analysis of Bader charge and deformation charge density, it is found that there is a significant charge transfer between the Cu atom and the adjacent O atom, and an open electron-poor region is formed above the Cu atom, which improves the ability of the ATP (200) surface to accept electrons. The calculated results are in good agreement with the experiments and effectively reveal the microscopic mechanism of the Cu-loaded modified ATP catalyst.
Study on Initiation Ability of Nano-AgN3 Synthesized by In-Situ Strategy
Authors: Li Yunfeng , Ren Jie , Li Mingyu , Zeng Qingxuan
Published: October 2023

Silver azide (AgN3) is one of the environmentally primary explosives with excellent initiation performances, and it can meet the demand for the miniaturization of modern weapon equipment. In this paper, nano-silver oxide (Ag2O) of 70 nm-90 nm was prepared by wet chemical method using polyvinylpyrrolidone (PVP) as a surfactant to synthesize nanoscale AgN3 by in-situ synthetic strategy. The analysis results demonstrated that the nano-AgN3 had a spherical distribution, and great initiation performance. The average velocity of the titanium (Ti) sheet impacted by AgN3 can reach more than 2600 m/s. In addition, the CL-20 explosive can be initiated stably and reliably by the AgN3 chip assembled in the micro-initiator. It provides a new technical route for the application of MEMS micro-initiator.
Study on Earthquake Disaster Resilience Evaluation Method of Graded Highway Sections
Authors: Zeng Jingxiang , Yan Erhu
Published: October 2023

Graded highway is an important object of regional toughness evaluation. It is necessary to evaluate the toughness of graded highway sections in disaster areas after earthquake disasters, so as to formulate the best emergency rescue plan. There are many aspects of the impact of earthquake disasters on the toughness of graded highway sections. This paper further analyzes the factors of the impact of earthquake disasters on the capacity of graded highway sections, and concludes the disaster factors of the impact of earthquake on the toughness of graded highway sections. The disaster factors of decreasing capacity of grade highway sections caused by earthquake mainly include: underground void, landslide, collapse, debris flow, ground crack, ground subsidence, ground collapse, surface foreign. These disaster factors are important aspects of earthquake disaster resilience evaluation of graded highway sections. Single consistent disaster factors can be combined with their own characteristics to establish the corresponding evaluation criteria. In this paper, the single consistent disaster factors can be graded and evaluated. According to the traffic capacity of graded highway sections, they can be classified into three categories: smooth passage, slow passage and difficult passage. The evaluation index of each level is consistent with that of the single consistent disaster factor. In the process of grade highway section toughness evaluation, the number of lanes is an important index affecting the toughness of the section. The weight coefficient can be used to evaluate the seismic toughness of grade highway according to the number of lanes of the grade highway. The research results of this paper are of great significance to the formulation of a dredging plan in emergency rescue after the earthquake.
Eco-Compensation Mechanism Construction of Chongyi Hakka Terrace Ecosystem
Authors: Miao Jianqun , Wu Qingxiang , Wang Zhiqiang , Wu Jian
Published: October 2023

Chongyi Hakka Terrace is located in Chongyi County in the south of Jiangxi Province, which is the largest Hakka Terrace in China. As a special agricultural ecosystem, it provides many ecological services for the Hakkas in Chongyi County. In recent years, with the increase in the opportunity cost of rural labor output, the abandonment of Chongyi Hakka terraces is becoming more and more serious, and the sustainable development of its ecosystem is facing severe challenges. Therefore, it is necessary to build a reasonable ecological compensation mechanism to promote farmers’ protection of the terrace ecosystem in the Chongyi Hakka Terrace area. In this paper, the problems existing in the Chongyi Hakka Terrace ecosystem are analyzed, and the externality of economic benefits and the subject and object of ecological compensation of the Chongyi Hakka Terrace ecosystem are identified. Based on this, combined with the existing research results, the ecological compensation standard of the Chongyi Hakka Terrace system is formulated, the government should provide 6.58×108 RMB·per year to farmers in the large-scale contiguous area of Chongyi Hakka Terrace. The priority of ecological compensation of the three townships in the large-scale contiguous area is Sishun Township, Fengzhou Township, and Shangbao Township. At the last, the implementation system of ecological compensation for the Chongyi Hakka Terrace system is proposed, for the purposes of providing a reference for government departments to formulate sustainable management countermeasures for the Chongyi Hakka Terrace ecosystem.
Monitoring of Energy Saving and Emission Reduction (ESER) of Expressway Pavement During the Construction Period
Authors: Wang Fuhai , Kong Chenguang , Wang Zijian
Published: October 2023

The energy consumption of expressway construction is so huge that it is important to strengthen the management of energy saving and emission reduction (ESER) of expressway construction. In this study, the latest literature on monitoring of energy saving and emission reduction of expressway pavement are reviewed from the following three aspects: the technology of energy saving statistical monitoring, research on benefit accounting of ESER, and research on application of energy consumption statistical monitoring. The purpose of this paper is to help establish a green highway pavement environmental protection evaluation system and a green low carbon construction technology system to promote the scientific development and green development of highway construction.
Design of Heavy Metal Pollution Control Engineering in a Lead Zinc Mining Area
Authors: Wang Kai , An Changwei , Liu Tong
Published: October 2023

An analysis was conducted on the heavy metal pollution situation in a certain lead-zinc mining area. Based on the current situation of the project area, an overall plan and implementation design for heavy metal pollution control in the mining area was proposed. By sealing the old openings, implementing in-situ safe disposal of residual waste residue, and restoring vegetation to the damaged ecological environment, the pollution in the mining area was eliminated and the ecological environment was restored.
Toughness Drop During Aging of G115 Martensitic Heat Resistant Steel
Authors: Ma Shaohai , Liang Kui , Yan Kai , Che Chang , Yang Xisheng , Sun Sicong
Published: October 2023

Impact toughness is a critical property that determines the service safety of components in martensite heat-resisting steel. In this study, we examined the evolution of the toughness in G115 material after aging at temperatures of 650°C and 700°C for 8000 hours. Through experimental analysis, it was observed that G115 steel exhibited favorable impact toughness (78 J) following the application of normalizing and tempering heat treatment. However, the impact toughness experienced a rapid and significant decline after aging at both 650°C and 700°C for a mere 500 hours. Microstructural investigations revealed a correlation between the development of Laves phase and the sudden drop of toughness. Notably, the detection of Laves phase near the initial crack source substantiates its role as the primary factor contributing to the reduction in impact toughness.
Research on Escape VOCs Gas Technology in Treating Petrochemical Wastewater by Multiphase Absorption Method
Authors: Zhang Qingdong , Pan Zhichao , Liu Faqiang , Wu Huayu
Published: October 2023

The fugitive VOCs generated by wastewater of petrochemical enterprises have caused a large amount of pollution due to their high fugitive concentration, complex composition and difficult treatment. In this paper, the fugitive VOCs generated by the sewage treatment plant of petrochemical enterprises were taken as the treatment objects, n-hexane, xylene and methanol were selected as representative pollutants, and the microemulsions of methyl oleate, Tween-80 and n-butanol were used as the absorption liquid, and the multiphase absorption system formed with the packing tower was formed to simulate the absorption experiment of VOCs, and the absorption effect of microemulsion and other absorbents was compared, and it was found that the absorption performance of microemulsion was better than that of water and Tween-80 solution. The influence of air intake, spray volume, temperature and other parameters on the absorption effect was investigated, and the concentration range suitable for the treatment of the system was studied, and it was concluded that the absorption system had a good treatment effect on lower concentrations of VOCs.
Design and Application of a Multi-Parameter Water Quality Sensor for Mining
Authors: Ding Jiangming , Tian Di , Wang Hong , Qin Haiming , Shan Liyan
Published: October 2023

This paper introduces the design of a multi-parameter water quality sensor for mining. This type of water quality sensor collects various characteristic ion parameters in mine water sources online in real time. The ion selective electrode constructed of sensitive polymer material converts the ion concentration in the water sample into a weak voltage signal, the signal conversion circuit amplifies the voltage measured by the ion selective electrode, and the 24-bit high-precision AD converter converts the voltage into digital. Finally, the TFT LCD screen is used to display relevant information such as ion species and ion concentration, which has the advantages of accurate measurement of ion content and convenient use.
PD Days Under the Moon: Teaching Lunar Phases to In-Service Teachers by Doing Astronomy Like Astronomers Do and its Impact on Their Students’ Learning
Authors: Chastenay Pierre
Published: October 2023

Several school curricula urge K-12 teachers to engage their students in scientific inquiry activities that not only promote students’ learning in science, but also foster students’ understanding of science methodology. Unfortunately, recent large-scale studies have shown that inquiry-based science teaching in school is the exception, rather than the norm. This is especially true for astronomy, which teachers often consider too abstract and remote for inquiry-based teaching. To promote inquiry-based teaching in astronomy, we present an epistemological and historical analysis of the way astronomers build new knowledge and propose to teach astronomy through a scientific inquiry process consisting of “Doing astronomy like astronomers do”. This inquiry-based approach, which also includes observation, modelling, and communication with peers, emulates the different steps astronomers and scientists go through to do empirical science (question, hypothesis, observation, analysis/synthesis, modelling, prediction/application, and communication), transposed into a teaching and learning lesson plan about the phases of the Moon. The crucial steps of observation, analysis/synthesis, and modelling, where astronomers create models as proxies of astronomical objects that cannot be manipulated, is highlighted. This inquiry-based astronomy training, which also promotes conceptual change about lunar phases, was tested with 18 in-service elementary and high school teachers engaged in a professional development (PD) training program. Three participant teachers also taught lunar phases to their own elementary and high school students (N = 104) using the same approach. We present the results of a quasi-experimental study of the impacts of this PD training about lunar phases on the learning gains and self-efficacy of the participating in-service teachers, as well as on their students’ learning.
Tájak, ecsetekkel : Radnóti Sándor (2022): A táj keletkezéstörténetei. „Ők, akik nézték Hannibál hadát”. Budapest: Atlantisz.
Authors: Weiss János
Published: October 2023

Jelen tanulmány Radnóti Sándor, tájról és tájábrázolásról szóló könyvének gondolati ívét próbálja felvázolni, három lépésben. (1) Milyen viszonyban áll egymással a táj fogalma és a tájképfestészet? (2) A mimézis fogalmának jelentősége a tájképfestészet számára; a mimézis válsága a modernitásban (Gadamer). (3) Sablonok a tájábrázolásban – útban a giccs fogalma felé. Fordulat a giccs fogalmának esztétikájában? (Adorno és a posztmodern.) Végül egy összefoglaló rövid fejezetben a recenzió a könyv jelentőségét méri fel.
DECOUVERTE DE LA CULTURE DES PAYS FRANCOPHONES EN COURS DE FRANÇAIS
Authors: HONCHARENKO-ZAKREVSKA Natalia , VERKHOVTSOVA Olga
Published: October 2023

L'éternel problème du choix de la meilleure méthode d'enseignement des langues étrangères a toujours été guidé par la tâche d'améliorer les compétences de communication de l'étudiant. L'une de ces méthodes d'apprentissage du français consiste à familiariser les étudiants avec la culture des pays francophones. La connaissance de la culture étrangère est l'une des compétences clés acquises dans le processus d'apprentissage d'une langue étrangère. La culture francophone couvre une large gamme : la littérature francophone qui est extrêmement riche, l’histoire des pays francophones complexe et fascinante, l'art francophone diversifié dans son mouvement et son style, de la peinture classique à la modernité, la musique francophone variée, allant de la chanson française traditionnelle à la musique pop contemporaine, traditions et coutumes. Aujourd'hui, le choix de matériel pédagogique à la disposition d'un enseignant de langue étrangère est assez large : des brochures méthodiques prêtes à l'emploi et des manuels méthodiques aux matériels journalistiques authentiques disponibles et la fiction. On se pose l’objectif d’explorer de différents aspects de la culture des pays francophones pour développer une compréhension plus profonde de ces sociétés et apprécier leur diversité culturelle au cours de français. Le but de l'étude est d'évaluer les différentes politiques et stratégies d'utilisation de la culture française pour l'enseignement de la langue française à l'université. La nouveauté scientifique est qu’en explorant les sociétés des pays francophones, on peut se pencher sur des sujets sociologiques tels que la structure sociale, les inégalités, les dynamiques de genre, la migration, l'intégration culturelle et les mouvements sociaux. Ces études permettent d'approfondir la compréhension des étudiants des enjeux contemporains et des défis auxquels font face ces sociétés.
СТРАТЕГІЧНІ НАПРЯМИ РОЗВИТКУ ПІДПРИЄМСТВ ЗЕРНОВОГО НАПРЯМУ
Authors: Фурман Ірина
Published: October 2023

В результаті дослідження визначено, що метою стратегічного управління запасами зерна на аграрних підприємствах є: максимізація прибутку внаслідок зберігання запасів зерна;максимізація задово¬лення потреб споживачів за наявних запасів зерна; мінімізація сукупних логістичних витрат внаслідок зберігання запасів зерна. Відповідно до обраної мети, стратегічними цілями логіс¬тичного управління запасами зерна на сільськогосподарських підприємствах, мають бути: забезпечення виробничих потреб насіннєвим та фуражним зерном із мінімальними витратами; максимізація прибутку від реалізації товарного зерна. Визначено, що основними стратегічними напрямами розвитку підприємств зернового напряму в умовах військового стану мають стати: формування стратегічних запасів зернових орієнтованих на власну переробку для забезпечення місцевого населення дешевими та якісними продовольчими товарами; розвиток грантових програм орієнтованих на видачу коштів аграрним формуванням що планують здійснення переробки зернових (виробництво круп, макаронних виробів тощо); державні дотації на створення систем меліорації земель для підвищення якості зернової продукції; впровадження науково обґрунтованих сівозмін на господарствах; розвиток співробітництва з спиртовими заводами для реалізації зернових на переробку.
Heridas por arma blanca
Authors: Barajas-Calderón Hélix , Medina-España Nayeli , Rojas-Villaseñor Carlos
Published: October 2023

Una herida punzante producida por arma blanca es una forma específica de traumatismo penetrante en la piel por un objeto punzocortante. Si bien se sabe que las puñaladas suelen ser causadas por cuchillos, también pueden producirse a partir de una variedad de implementos, como botellas rotas y picos de hielo. La mayoría de los apuñalamientos se producen debido a la violencia intencional o por autoinflección. El tratamiento depende de muchas variables diferentes, como la ubicación anatómica y la gravedad de la lesión. A pesar de que las puñaladas se infligen en una tasa mayor que las de los disparos, representan menos del 10% de todas las muertes por trauma penetrante.
Signos cadavéricos fundamentales en la práctica diaria de la medicina forense
Authors: Barajas-Calderón Hélix , Rodríguez-López Zaira , Barrera-Serafín Jorge , Gutiérrez-Sánchez Paula , López-Camarena Luis
Published: October 2023

Los signos cadavéricos son hallazgos bien descritos que nos ayudan en el cronotanatodiagnóstico de la muerte en cadáveres y sus posibles modificaciones con relación al entorno y la causa de la muerte. El ob-jetivo de este estudio es recopilar y exponer, de la for-ma más didáctica, todos los fenómenos por los cuales es producida una muerte, hacerlos comprensibles y útiles para los estudiantes de la materia de Medicina Legal y Forense, investigadores y peritos. Por lo ante-riormente mencionado se describen y se analizan los signos cadavéricos para realizar una “guía básica” y establecer el adecuado cronotanatodiagnóstico, con-siderando que existen diversos factores que pueden intervenir en los diferentes tipos de muerte desde la perspectiva médico-legal.
Dosis enarm
Authors:   Centro Universitario de Tonalá, Universidad     de Guadalajara, Ibarra Núñez Pedro ,   Tonalá, Jalisco, México, Torres Rodríguez Juan ,   Centro Universitario de Tonalá, Universidad     de Guadalajara; Tonalá, Jalisco, México, Campos-Mariz Héctor ,   Centro Universitario de Tonalá, Universidad     de Guadalajara; Tonalá, Jalisco, México., Galván Escoto José
Published: October 2023

El enarm se compone de 450 reactivos de opción múltiple, y valora los cuatro grandes grupos de especialidades de la Medicina que se mencionarán de acuerdo a su importancia respecto al número de preguntas: Medicina Interna, Pediatría, Ginecología y Cirugía. Cada día se utilizan reactivos distintos “con las mismas características de objetividad, calidad, balance y nivel académico” para constituir cada versión del examen con el mismo número de reactivos y con la misma proporción de 50% de ítems de dificultad media y 25% para los de alta y baja dificultad. Es por ello que la dedicación y la atención para resolver las preguntas de dificultad alta marcarán una pauta en obtener buenos resultados.