Search all articles

In order to establish a novel flow injection chemiluminescence method for the analysis of trace acrylamide in fried foods, the acrylamide in the sample was extracted, and its effect on Luminol-Hydrogen Peroxide Chemical luminescence system to enhance the role of the determination of the conditions of...

Eggplant cultivar ‘Changhong’ was subjected to low temperature treatment of 15/10 (day/night) in the artificial climate chamber. The effects of exogenous melatonin (MT) on the photosynthetic of leaves under low temperature and weak light stress was investigated. The results showed that with the increasing...

To achieve effective customer management, the construction method of user portrait is studied. Taking the customers of a shopping mall as the research object, the RFM model is used to analyze customer value, and the 3 indicators of R,F,M are constructed to evaluate customer value. K-means clustering...

The absorption characteristics of formaldehyde, acetaldehyde, propionaldehyde, n-butyraldehyde and valeraldehyde by Schefflera octophylla and Chamaedorea elegans were investigated at the laboratory simulation environment of short-term exposure to different CO2 concentrations. Under normal circumstances,...

The ternary complex of Eu(Gly)2(Ala)3Cl3•2H2O(Gly = Glycine and Ala = Alanine) was synthesized and characterized by comparison of elementary analysis, chemical analysis, thermogravimetric analysis, and data with corresponding. The dissolution enthalpies of the EuCl3 •6H2O(s), 2Gly(s) + 3Ala(s) and Eu(Gly)2(Ala)3Cl3•2H2O(s)...

The hot deformation behavior of Mg-4Sn-1.5Pb Magnesium Alloy was investigated by hot compression test in the temperature range 250 -400 and strain rate range 0.001 s-1-10 s-1 on Gleeble-3500 simulator. The calculated hot deformation activation energy Q is 158.144 KJ/mol. Stress exponent is 6.6. The deformation...

Application of fertilizers in grain fallow rotation in the central part of Kurgan region increased the productivity of grain crops by 3.0-22.1% and enhanced the quality of grain as well. The application of lime affected the composition of SAC and acidity of chernozem. Combined application of lime and...

A pot experiment was conducted to study the effects of exogenous melatonin (MT) on photosynthetic characteristics of eggplant under cadmium (Cd) stress. Five treatments were used in the experiment: leaves were sprayed with 0 (CK), 25, 50, 100 and 150 mol•L-1 concentrations of melatonin solution. The...

The basic idea of this paper is to simulate use of the environment of high temperature filter material and study chemical resistance of needle-punched nonwoven fabric made from polyphenylene sulfide (PPS). An orthogonal test was designed to investigate the interaction effect of various factors, namely...

The compressive creep behavior of AE42 and AE41-xCa alloys were investigated at temperatures in the range of 125~175 and compressive stresses in the range of 88~112MPa with a special apparatus. The results show that the creep resistance of alloys is improved with increasing of calcium concentration,...

The hot compression deformation behavior of AE42 magnesium alloy was investigated at the temperature range from 250 to 450 , the strain rate range from 0.001 to10 s-1 and the maximum reduction of 60 %. The relationships between flow stresses, deformation temperatures and strain rates of AE42 magnesium...

Here a simple method for fabrication of the microfluidic device with micro- and nanochannels was developed. The microchannels in micro and nano scales were fabricated on a glass substrate during a two- step process respectively. And then the glass substrate with the microchannels was bonded with another...

The plant factory controls temperature, lighting, plant nutrients, and other environmental factors to provide a consistent, plant-friendly environment for predictable yields. In addition, microgreens can be grown profitably in expensive urban plant factories in a short harvest period. This study uses...

The community phenomenon captures business opportunities existing around the centers of Higher Education. One of which is renting rooms with VIP facilities to attract prospective tenants. The purpose of this article is to analyze the room owner’s compliance in reporting and paying income tax from room...

The present study evaluated the kinetics and thermodynamic parameters for the thermal inactivation of inulinase. The thermoinactivation behaviours of inulinase under 40, 50, 60 and 70 were observed. Residue activity of inulinase after incubated for a certain time under the tested temperatures, respectively....

A pot experiment was conducted to study the effects of exogenous melatonin (MT) on photosynthetic characteristics of eggplant under cadmium (Cd) stress. Five treatments were used in the experiment: leaves were sprayed with 0 (CK), 25, 50, 100 and 150 mol•L-1 concentrations of melatonin solution. The...

Phase equilibrium was studied on the basis of the data of differential thermal, X-ray phase analyzes, as well as measurements of conductivity and density. Phasing diagrams of TlInSe2-CuInSe2 and TlInSe2-AgInSe2 systems were constructed over the entire concentration range. The studied systems were quasi-binary...

According to the data of differential thermal, X-ray phase analyzes, as well as measurements of conductivity and pycnometric density, phase equilibriums were studied and phasing diagrams of TlInS2 - CuInS2 and TlGaSe2 - CuGaSe2 systems were created in the entire concentration range. The studied systems...

Sodium tetrazolate and sodium 5-chlorotetrazolate crystals obtained by recrystallization centred on sodium ion, and the sodium ion was coordinated by tetrazolate rings and crystal water; the packing arrangements of sodium tetrazolate and sodium 5-chlorotetrazolate were rhombus structure which lead to...

This study investigates user behavior on e-commerce shopping guide platforms, specifically exploring the determinants of continuous social interactions. Utilizing the XGBoost algorithm, we developed a predictive model incorporating sentiment tendencies derived from user comments. By dividing a dataset...

The abundance of cabbage waste and banana peels presents an opportunity for their utilization as raw materials in the composting process. Composting is the decomposition of organic matter facilitated by the activity of microorganisms acting as decomposers. Through this process, organic materials are...

Cancer is a non-communicable disease, the second largest cause of death in the world. In Indonesia, breast cancer is the most common type of cancer suffered by women with 22,692 deaths case. However, chemotherapy drugs work non-selectively as it they are against both cancer cells and normal cells, which...

The Zn₁₋ₓMnₓO(x = 0.05, 0.1, 0.15) diluted magnetic semiconductor powders were repared by hydrothermal synthesis at 220 heated for 24 h using NaOH of 3 mol/L and 5 mol/L as the mineralization agent. It is shown that there had a direct relationship between mineralizer concentration and hydrothermal synthesis,...

Objectives: This study aims to find a relationship between secondary metabolites of akar kuning and neuraminidase (NA) with molecular docking study and also to determine the most potent NA inhibitor from metabolites of akar kuning. Methods: All ligands were sketched and optimized using Gaussian 03W with...

Decanter cake (DC) is one of the oil palm mill solid wastes that contains macro and micronutrient elements especially high Nitrogen levels. Using it as organic fertilizer could substitute half of the chemical fertilizer dose. The alternative decrease in chemical fertilizers requires nutrients from organic...

In this paper, CNKI data is the main sources, Chongqing VIP data and Wanfang data are the supplementary sources. It uses the method of social network analysis and visualization technology to analyze the characteristics about overall and local structure on co-authorship network in medical information...

TG/DTG was applied to study the overall kinetics for the reduction of pyrolusite by the mixture of cellulose and lignin, two major components of biomass. The respective reduction processes can be described by a new empirical equation based on the JMA equation, and the apparent activation energy is 38.66...

Network assembled structures from a series of macromolecular surfactants were prepared on glass surfaces. When the content of the hydrophobic side-chains was increased from 10 to 90 mol%, the solutions exhibited a lower surface tension. In addition, these solutions ultimately formed thinner and more...

In this study, Shenfu crude coal and nitric acid-pretreated coal were solubilized by Bacillus amyloliquefaciens and Saccharothrix xinjiangensis. Around 7-8 % crude coal dry weight was solubilized within 15 days. The nitric acid pretreatment of the coal increased process efficiency by around 60% for Saccharothrix...

In this paper, a new method for the speciation, separation and preconcentration of Cr(VI) and Cr(III) in water was developed. The procedure presented based on two forms of chromium show different adsorption capacities on the Porous nano-barium strontium titanate by reversed-phase suspension polymerization...

The existence of organizations is very important in the administration of elections. Setting various organizational dimensions adequately, is an important part of efforts to achieve organizational goals. Indonesian Law No.7 of 2017 concerning Elections, which replaces the three laws related to the election...

A large number of clinical studies have shown that mechanical ventilation is an important means to improve the airway ventilation and oxygenation status of patients. In this paper, the meta-analysis method was used to analyze the effect of inspiratory muscle training on respiratory muscle function in...

Hectorite has been designed and synthesized by hydrothermal way, which is used for removal of methylene blue (MB) from aqueous solution. The experiment data was analyzed using pseudo-second-order kinetics, intra-particle diffusion and film diffusion. The characteristic parameters for each model have...

In this paper, we study the hydrogen separation performance of bilayer graphene by molecular dynamics simulations. When the interlayer spacing between two grapheme sheets is larger than 5 , the impurities gas molecules can pass through the membrane. When the interlayer spacing is 5 , the permeance...

Organic fertilizer are fertilizer that work in increasing the biological, chemical and physical activities of the soil so that the soil becomes fertile and good for plant growth. Kersen leaves and eggshells are materials that can be used as liquid organic fertilizer because they contain various types...

In this paper, to examine the effects of elevated ozone on secondary metabolism and antioxidant capacity in soybean roots, as well as reactive oxygen species and antioxidant enzymes activity. Soybean grown in open top chambers (OTCs) were exposed to ambient air ([O3]=40nmol•mol-1) and elevated ozone...

As a commodity with high adaptability to climate change, sorghum has high potency in food sustainability. Sorghum grain can be diversified to be various kinds of food products including rice sorghum instant. The heat transfer process during the drying of sorghum rice instant is an interesting factor...

Soluble medical dressing can form gel on the wound surface, which can keep the wound wet and promote wound healing. In this work, carboxymethyl cellulose (CMC) gauze embedded with silver nanoparticles (AgNPs) was prepared via in situ reduction of Ag+-CMC gauze in the presence of reducing reagent and...

A set of simulation equipment is set up after the conditions of removing SO2 and heavy metal Hg (Hg0 and Hg2+) has been investigated, the results of the removal technology method of absorption Hg0, Hg2+ in smelting gases containing SO2 with (NH4)2S is tested, and their composition of reaction products...

The forster resonance energy transfer (FRET) between different CdTe QDs and RhB were investigated by steady-state and femtosecond time-resolved photoluminescence spectra technique. Through the measurements on three different CdTe sample solutions, it was found that the FRET efficiency is proportional...

We’ve designed a photoelectric sensor to detect the concentration of SO42- solution with a vertical capsule which was immersed into sample solution derectly. The system contains a pair of light-emitting diode (LED) and photosensitive diode (PIN) packaged with cover of semi-sphere shape. Theoretical analysis...

EACHL was extracted from the Chinese honey locust. MTT assay was used to test the cytotoxicity of the extracts on esophageal carcinoma cells. The result of MTT assay showed the Ic50 values of Eca109 and TE1 are 11.53, 32.07 g-ml-1, respectively. The interaction of EACHL with bovine serum albumin (BSA)...

Anemia is the most frequent complication of Chronic Kidney Disease (CKD) which is mainly caused by erythropoietin (Epo) deficiency. Epo agonist is the drug choice for anemia in CKD but some patients have antibody against Epo agonist. Objectives: This study aimed to identify Indonesian medicinal plants...

Many plants from the genus Alpinia are known to have several bioactive compounds that can act as an antitumor in cancer treatments. However, the potency of the bioactive compounds from red ginger as an antitumor agent has not been reported before. This research aims to study the inhibitory activity of...

Waste is organic and inorganic materials from factories and households that are not used that can cause environmental pollution. Some of the waste that is widely found in the South Sumatra region is snakehead fishbone waste from the food industry, and coal fly ash from the Steam Power Plant. Snakehead...

The low pressure of ZnO varistor ceramics were prepared with 99.5 mol % ZnO +0.5 mol % CaCO3. Subse-quently, placed in a constant temperature conditions of 1420 for 10 h, and cooking in boiling water long enough. The microstructure of the particle size analyzed by optical microscope, the doped ZnO varistors...

The effects of melatonin (MT) treated the previous stubble radish seedlings on the growth of following stubble lettuce seedlings under salt stress were studied by pot experiment. The results showed that MT increased the biomass, root volume, root length, plant height, chlorophyll content and carotenoid...

A pot experiment was conducted to study the effects of melatonin (MT) on the growth of radish seedlings under salt stress. MT increased the biomass, chlorophyll content and antioxidant enzyme activity of radish seedlings under salt stress. When the concentrations of MT were 50, 100, 150 and 200 mol/L,...

A novel method of extracting vanadium from molten vanadium slag was developed to process vanadium slag with high Ca and P contents. The mineral phases of the clinker obtained after oxidizing the molten vanadium slag with high Ca and P contents (10.71 wt. % V2O3, 19.20 wt. % CaO, 1.03 wt. % P2O5) were...

A pot experiment was conducted to study the effects of photosynthesis of Chinese cabbage under AlCl3 stress, and different concentrations of abscisic acid (ABA) solution about 1, 5, 10 and 20 mol-L-1 were sprayed, control was sprayed water on leaves. The results showed that sprayed ABA could improve...