Advances in Physics Research

Drying is the final step of the film processing cycle which aims to remove the water present in the emulsion layer. The result of the film processing is an undamaged emulsion, free from dust particles, crystal deposits, stains, and artifacts. This research aims to make radiography film dryer with a timer....

The increase in energy demand and reduced energy reserve, other alternative energy sources that are more environmentally friendly are needed, one of which is solar cells. Among several types of solar cells, Dye Sensitized Solar Cell is a type of solar cell that can produce electricity more efficiently....

Research has been carried out on the identification of andesite rock distribution using the geoelectric method of resistivity in Buluri Village, Ulujadi District, Palu City. This study aims to identify the distribution of andesite rocks using the Automatic Array Scanning (AAS) measurement method with...

Simulation of seismic wave propagation has been very important way to study the relation between a specific condition of earth medium and seismogram recorded during a seismic event such as an earthquake. In this study, a numerical modelling of P-SV wave propagation in elastic heterogeneous medium has...

In order to reduce cost and contain properties, GPTMS-boehmite transparent and hard coating film was prepared by replacing boehmite with aluminium isopropoxide (AIP), and modified by hydrolyzed TEOS. By the research of the process, a cheap transparent coating film with a pencil hardness of 4H and adhesion...

A novel photochromic diarylethene bearing a pyrimidine moiety, 1-(2,4-dimethoxyl-5-pyrimidinyl)-2-[2- methyl-5-(3-methyl)-3-thienyl]perfluorocyclopentene has been synthesized. Its properties, including photochromic and fluorescent behaviors, have been investigated. The compound exhibited remarkable photochromism,...

Inferred Menanga fault is one of fault that is still questionable whether it exists or not. It is located in Pesawaran regency, Lampung, exactly near Ratai Mountain with SE-W orientation and almost crosses the summit of Mount Ratai. The existence is sticking out and needs to be studied since there were...

A new unsymmetrical photochromic diarylethene 1- (3,5-dimethyl-4-isoxazolyl)-2-{2-methyl-5-[4-(1,3-dioxolane)- phenyl]-3-thienyl}perfluorocyclopentene (1o) has been synthesized. Its properties have been discussed systematically, including photochromic, fluorescence switch and kinetics experiments in...

The application of sludge granulation was regarded as one of the promising biotechnologies in wastewater treatment. Anaerobic sludge granulation process is a multistage process that is decided by many factors such as operational condition, substrate and so on. After summarizing the existing mechanisms...

A thin film of PPIA synthesized from polycondensation reaction of itaconic acid (IA) and 1,3-propanediol (PDO) with spin coating method has been made. To develop the film property, various glycerols (gly) were added during reaction to form PPIA film with 10%, 30%, 50%, and 70% of the total weight of...

A novel unsymmetrical isomeric photochromic diarylethene, 1-{2-methyl-[5-(4-trifluoromethyl)phenyl]-3- thienyl}-2-{[2-methyl-5-(3-chlorine)phenyl]-3- thienyl}perfluorocyclopentene, was designed and synthesized. Its fluorescent and photochromic properties were also investigated in detail. The compound...

Determination of East Kalimantan, particularly Sepaku Sub-District, Panajam Paser Utara Regency, and Kutai Karta Negara Regency as the New Capital City of Indonesia requires an in-depth and comprehensive study of various aspects, including the natural disaster of the earthquake. Based on earthquake records...

A power ratio of Savonius as a vertical wind type has been predicted using an artificial neural network (ANN) with a backpropagation algorithm. The ANN is a method for processing information that is adapted from a biological neuron. This method is developed from the principle of a human being’s brain...

An asymmetrical photochromic diarylethene 1-(2- cyano-1,5-dimethyl-4-pyrryl)-2-{(2-methyl-4hydroxymethylphe -nyl)-3-thienyl}perfluorocyclopentene (1o) was synthesized and its photochromic properties as well as reaction kinetics were investigated in detail. Upon irradiation with 297 nm UV light, diarylethene...

EPS templates attaching a compressed powder disk on a surface that are mainly consisted of Ni-WC powders were prepared. High manganese molten steels were poured into the templates forming a surface alloyed sample using V-EPC process. After water quenching from 1050ºC, the microstructures of the steels...

DSSC is a permanent alternative energy device in the form of environmentally friendly photoelectrochemical as a renewable energy source. So, the Efficiency of DSSC is still varied and relatively low. Therefore, in this study, a study was conducted on the effect of the composition of rGO/TiO2 as a photoanode...

Georadar method with radar reflection profiling configuration and geoelectrical method with dipole-dipole configuration has been done to determine the lithology, fracture characteristics of weak zone or fault that could potentially result of mass movement in Liwa, Lampung Barat. This research was conducted...

The aim of this research is to simulate the transmittance of fluorine doped tin oxide (FTO) for dye sensitized solar cell (DSSC) application. Simulation was performed using finite difference time domain (FDTD) method based on Maxwell equation for flat and nano cone periodically surface textured of FTO....

An unsymmetrical photochromic diarylethene, 1-(2-methyl-5-(4-tolyl)-3-thienyl)-2-[2-methyl-5-(4-npentyl phenyl)-3-thienyl] perfluorocyclopentene was synthesized, and its photochromic properties, kinetics of the photochromic cyclization/cycloreversion and fluorescence were investigated in detail. The...

Based on the current proposed three type Padé approximations of fully ionized hydrogen plasmas. Using Fortran program, we calculated the Helmholtz free energy of hydrogen plasmas and made a comparison of these Helmholtz free energy. It is concluded that the dimensionless parameter feec of W.Stolzmann’s...

A novel asymmetrical photochromic diarylethene compound 1-(3,5-dimethyl-4-isoxazolyl)-2-[2-methyl-3- benzothiophenyl]perfluorocyclopentene 1o has been synthesized, its photochromic properties and fluorescent properties were investigated in detail, such as photochromic, fluorescence switch and kinetics...

Cavity sound pressure level is a very important measure when dealing with the design of resonator based power generating sound absorbers and sound diffusers. This paper presents results from experimental study of the performance of the second generation iARG-X2 power generating Helmholtz resonator. The...

Today, lung cancer is one of the deadliest diseases in the world, with an early sign of Lung Nodule. One of the standard procedures to detect it is a radiological examination using Computed Tomography (CT) Scan technology. This study aims to describe the use of CT Scan to detect the presence of lung...

In 2006 a large earthquake ever occurred in the province of Yogyakarta, which caused considerable damage. This is the basis need to investigate the seismic vulnerability index in around of the earthquake zone. This research is called microzonation of earthquake hazard. This research has been conducted...

One of the areas in Indonesia that are at risk of being affected by disasters is East Kalimantan. East Kalimantan is designated as IKN (State Capital City) by the government of the Republic of Indonesia. East Kalimantan was chosen as the new IKN due to its geographical location in the middle of the Indonesian...

A new unsymmetrical photochromic diarylethene 1- [2-methyl-5- trimethylsilacetenyl-3-thienyl]-2-[2-Cyanophenyl] perfluorocyclopentene (1o) were synthesized. Under alternating irradiation with UV and visible light, the compounds showed favorable photochromism in hexane. The product changing from colorless...

Suppose G is a bounded, connected, and undirected graph. Let V(G) and E(G) be the vertex set and edge set, respectively. The subset D of V(G) is a subset of the graph G that dominates it efficiently if every vertex in G is either in D or adjacent to a vertex in D. The subset M of V(G) is the complete...

We study the behavior of numerical entropy production of shallow water flows along channel by varying width. The topography is assumed to be horizontal, but the channel width can be in an arbitrary shape. The flows are governed by the system of shallow water equations. These equations are numerically...

The Camba Formation (Tmcv) of Tertiary age is spread over the southern part of South Sulawesi, especially in Gowa and Maros Regencies. The Camba Formation, which consists of igneous rocks from the ancient Camba volcano, has different mineral characteristics. Analysis of mineral characteristics using...

The comparisons of fastness of the different coating processes of electroless silver plating on polyethylene membrane surfaces were investigated. The average fastness values of the impregnation (from 2.0 ± 0.5 in I3-1 to 4.0 ± 0.5 in I2-1), the brush (from 4.0 ± 0.3 in B3-1 to 4.5 ± 0.3 in B2-1) and...

Modified electrospinning apparatus has been developed for continually fabricating nanofiber-coated microfibers. Two positively charged spinnerets were introduced and the PVA microfibers containing silver nanowires (AgNWs) were acted as the grounded collector. The prepared PVA/AgNWs microfiber moved through...

The comparison of their frequency-phase velocity (FV) diagrams from both 8 and 24 channels seismic surface wave active data (MASW) have been carried out. This conducted to show the effectiveness of smaller amounts of geophones for MASW acquitision and comparing the processing FV results. Several data...

That publicity to extremely Low Frequency (ELF) magnetic fields can save and suppress the increase and proliferation of pathogenic microorganisms, which have a vital role in the process of meal spoilage. This has a look at pursuits to have a look at the “Resilience of broiler meat thru exposure to extremely...

A research on caustic fusion method of zircon concentrate has been conducted with applied single and double steps of leaching and filtration. The aims of research are to produce zirconia, ZrO2, with high purity, to study its crystal structure and cell parameters and also comparing the results of single,...

The increasing population growth and rapid development of Pekalongan in recent years have caused an increase in clean water needs that cannot be fulfilled from surface water due to pollution problems, so people prefer to use groundwater. Therefore, it is necessary to determine the aquifer system to know...

Pegunungan Bintang district with the capital Oksibil, almost all of its territory is mountains of karst, especially in the west area, people living in the mountain slopes and small valleys in small groups, scattered and isolated. Karst areas, in general, has a lot of subsurface cavities at a developed...

This paper introduced a novel and efficient inorganic antibacterial material technique, which used hydroxyapatite (HAP) as a carrier, taking the method of co-precipitation and ion-exchange to prepare Titanium/metal ions (Ag+, Cu2+, Zn2+) and then combined with hydroxyapatite (HAPTiM). According to the...

Fatigue test of Al-4.5Cu-0.6Mg-0.3Si-(0.3Ce) alloy with solution plus artificial aging treatment state was carried out on fatigue experimental machine. The low cycle fatigue behavior and fracture behavior of Al-4.5Cu-0.6Mg- 0.3Si-(0.3Ce) alloys were studied. The results show that Al- 4.5Cu-0.6Mg-0.3Si-(0.3Ce)...

This study evaluates the manufacturing process of microfibrillated cellulose (MFC) reinforced PLA nanocomposites using a semi-crystalline grade of polylactic acid (PLA). The objective of this study was to obtain uniform dispersion of MFC in a PLA compound of semi-crystalline grade of PLA. The nanocomposites...

In this work we present the simulation analysis of a Micro Electro Mechanical Systems (MEMS) based capacitive pressure sensor for the measurement of blood pressure in the range 0 - 40kPa. We consider a circular corrugated silicon diaphragm and simulate the diaphragm’s response to the applied pressure....

Solar activities eject high energetic particles, instead of electromagnetic radiation. The well-know solar activity main indicator is the existence of sunspot which has mean variation in 11 years, named by solar cycle. Solar activities are related to the space weather affecting all planets atmospheric...

Literacy is an important skill in the 21st Century. The research aims to describe the ability of elementary school students with field dependent and field independent cognitive style in Mathematical literacy. Type of this research was qualitative research. The research subject was student of SDIT Ar-Risalah...

Three-dimensionally ordered macroporous (3DOM) Fe2O3 and 0.48 1.95 wt% Au/3DOM Fe2O3 catalysts were prepared using the poly(methyl methacrylate)-templating and polyvinyl alcohol-protected reduction methods, respectively. It is found that the porous catalysts with a surface area of 45 46 m2/g were of...

Emulsion is a semi-synthetic working fluid with high performance, whose chemical components mainly include water, base oil, surfactant, rust-inhibiting additive, etc. It has been widely used in industrial processing, but the assessment on its composition effect generally still depends on the intuitive...

Research has been conducted on the analysis of nickel ferrite (NiFe2O4) nanoparticles based on iron sand. The purpose of this study was to produce nickel ferrite nanoparticles and to determine the physical and optical properties of nickel ferrite nanoparticles. In this study, the synthesis of nickel...

Analysis of power spectrum of the satellite gravity anomalies data has been carried out to estimate the thickness of sediment deposits in the Purwokerto-Purbalingga Groundwater Basin. Power spectrum analysis uses the Fourier transform principle by converting data from the space domain to the frequency...

The capability of control elements to manage the reactor operation does not merely relay on their negative reactivity worth, but also the speed required to shutdown the reactor when operation state leads to an accident condition. The response speed of control elements is characterized by delay time which...

The aim of investigation was to analyze geometrical effects of frame on vehicle handling. Analysis had been done on prototype of three wheels vehicle. The prototype was designed using revolute joint frame to gain better vehicle handling. Revolute joint frame on the vehicle prototype could be set up into...

Although art scholars are primarily concerned with instruction, one of literature’s fundamental purposes, it may also be appropriate for non-art scholars, such as geological scientists. Geology lessons can be taught using literature, such as cave exploration. An alternate strategy for bringing people...

In this paper, TiO2 photocatalyst with enhanced photocatalytic activity was prepared by Sol-Gel method with the assistance of urea. The specific surface area, structure, and the hydroxyl content were characterized by Brunauer-Emmett- Teller (BET) measurements, X-ray diffraction (XRD), and FT-IR, respectively....

The electrical blackout on August 4, 2019, in several areas of Jakarta and surrounding areas took a long time to recover and the vital loads lose electrical supply. This power outage indicates that there is a weakness in the electrical defense scheme. Based on the conventional standard, when the frequency...

Hybridization of glass fibers into carbon fibers could be an effective way to improve the failure strain problems of pure carbon composites and to reduce vehicle weight without excessive cost. Relative glass/carbon ratios significantly influences the flexural properties and laminate geometry further...

Hemodialysis is one of the medical treatment methods for the patients with end stage renal disease. It is conducted through the use of artificial kidney, located outside of the human body. During the hemodialysis therapy, small air bubbles may infiltrate the blood tubing and coalesce to perform the larger...

In this study, we propose a method for preparation of hybrid polymer solar cell sub-module, which is achieved by internally series-interconnection of 3 (three) single hybrid polymer solar cells based on MDMO-PPV and ZnO blend on a flexible substrate. The structure of the device was ITO/PEDOT-PSS/ZnO:MDMO-PPV/Ag....

Using molecular dynamics simulation method study the mechanism of nanometric cutting of monocrytalline silicon. We used LAMMPS software programming to establish model.Through VMD video software to display the image of cutting process and combining with the change of potential and temperature, we understand...

We present a density functional theory (DFT) study of the dissociation pathway of monomeric H2O into adsorbed hydroxyl (OHads) and hydrogen (Hads) on the Pt(111) surface. Here we consider the Langmuir-Hinshelwood process of adsorbed monomeric H2O, which is then dissociated on the surface model. By calculating...

In this study, we explore the idea of rainbow antimagic coloring, which combines the notions of antimagic labeling with rainbow coloring. We consider a connected and simple graph G(V, E) with a vertex set V(G) and an edge set E(G). A vertex labeling of graph G is defined as a bijective function ...

The (Mg24Ni10Cu2)100–xNdx (x = 0–20) alloys are fabricated by vacuum induction melting and melt-spinning technique. The structures of the as-cast and spun alloys were characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). The electrochemical hydrogen storage performances...

Accurate determination of the protons energy in radiotherapy planning can be achieved if the stopping power of protons to specific body tissue are known. The Bethe-Bloch equation greatly aid the understanding of how to calculate the stopping power from the physics point of view, but not so practical...

The performance of dye-sensitized solar cells (DSC) is affected by its components such as photoelectrode material, dye-sensitized, electrolyte, substrate and counter electrode materials. In this study, we investigated the effect the addition of larger TiO2 particle as a scattering layer to the TiO2 nanoparticle....

Generating electricity using fossil fuels can increase global warming. To reduce the use of fossil fuels, the implementation of Renewable Energy becomes a choice. One example is a Photovoltaic (PV) installation connected to a grid. The addition of on-grid PV on the load side may provide an undesirable...

As a kind of high efficient cooling mode, the evaporative cooling technology has been successfully applied to a lot of engineering fields. This paper introduces a kind of evaporative coolant, for the first time, used to the ECR ion source. Firstly, we compared the basic physical and chemical characteristics...

Accurate determination of blood urea concentration has gained a great clinical interest, especially for diagnosing kidney failure or lever malfunctioning. The biosensor can provide a fast response and accurate measurement about blood urea concentration. In this research, a method for fabrication of a...

A water thrust from the nozzle is the main factor for the optimizing of the pico-hydropower system. The previous study indicated that the optimal water trust resulting from the balance between the forebay tank and penstock pipe. The study of the balances has been conducted by governing of Bernoulli equation...

Two chiral poly(N-(tert-butoxycarbonyl)-Lphenylalayl (3,4-ethylenedioxythiophene-2'-yl)methylamide) (PEDOT-Boc-L-Phe) and poly(L-phenylalayl (3,4- ethylenedioxythiophene-2'-yl)methylamide) (PEDOT-L-Phe) were synthesized by electrochemical polymerization, and their properties as an immobilization platform...

With static position feature of target, existing positioning algorithms can not track target trajectory well when the target is mobile. To solve this problem, a target trajectory tracking algorithm based on hidden Markov model is proposed in this paper. Firstly, a hidden Markov model is established according...

Applying a favorite semi-efficient method, the influences of a typical silane coupling agent, named aminopropyltriethoxy Silane (APTES), on morphology, hardness, and tensile strength behaviors of the natural rubber/silica composite were examined. As a natural-based rubber, the natural rubber (NR) was...

A non wovenpolycarbosilane (PCS) fibers was successfully produced by electrospinning and processed by a thermal curing and electron beam curing. PCS solution composition was 1.2 g/ml PCS with 30% N,N-dimethylformamide (DMF)/70%toluene and the applied voltage at 10 kV in spinning process. The PCS fibers...

This paper analyzed volatile organic compounds (VOCs) in the ambient air of a secondary fiber paper mill. The compositions and quantities of VOCs were determined by the gas chromatography-mass spectrometry (GC-MS) method and the photo-ionisation detector (PID), respectively. The total concentrations...

Power outages that sometimes still occur cause disruption of economic activity around the area, especially the city of Bau-bau, it is necessary to forecast the electrical load in order to determine the characteristics of the electrical load in the area. Short-term electrical load forecasting is used...

Earthquake phenomena can be observed and monitored using the presence of vibration. In order to monitor the vibration, fluxgate sensor can be applied based on magnetic flux change. In this research, a vibration measurement instrument based on the fluxgate sensor for an earthquake monitoring application...

A simple solution to solving the problem of alternating current circuit materials. Alternating current circuit material is a material that has many mathematical equations and depends on the type of circuit combination. The combination of circuits on alternating current material is RC, RL, LC, and RLC...

An earthquake swarm in January 2021 triggered research related to adjacent geological structures, mainly inferred Menanga fault having predicted in the previous studies. This study is focused on investigating the fault and volcanic -related activity in terms of magnetic field anomalies due to sensitivity...

Objective to established a gas chromatography mass spectrometry method for the determination of the 8 phosphorus and carbamates pesticide residues in organic vegetables. The vegetable sample was homogenate, after the extraction of acetonitrile. The detection of the GC/MS was carried out by solid phase...

The steel collar is an important part of textile machine, which not only requires good abrasion resistance, but also have more stringent requirements for ovality and irregularities, as shown in Figure 1. Generally low carbon steel collar is carburized (or carbonitrided) after quenching to increase its...

In the application of a semi-efficient method for the rubber compounding and vulcanization, the study on the effects of oleamide addition, as a rubber additive, on the strength and reinforcement behaviors of styrene butadiene rubber (SBR)-silica compound was carried out. The oleamide was synthesized...

Low Temperature Detection System on cow cement flask base on RTD-coil coupled by transducer 4-WCB has been made. Four kinds of sensor was prepared, that’s are coils from copper material with diameter 1 mm and set number of winding from 200 up to 500. Four-WCB circuit was chosen as transducer to facilitate...

Hydrochloric acid solution of TiCl3 was synthesized by reacting of Ti powders and hydrochloric acid in highpressure reactor at 145 . After vacuum drying TiCl3·6H2O crystalline were obtained. TiCl3·6H2O crystalline and urea, being as nitrogen source, were put into the vacuum slowly vapor deposition reactor....

With the traditional casting Penetration technology, high chromium cast iron composite layer has been formed on the surface of low carbon steel. The microstructure and Properties of cast Penetrating layer has been also studied. The test result has shown that the average microhardness of cast penetrating...

Initial studies have been conducted to study the properties of calcium carbonate (CaCO3) from a wide range of poultry such as domestic chicken eggshell, Chicken Broiler egg shell, duck egg shell and quail egg shell. This initial study was conducted to determine whether the initial identification of a...

In order to better understand land application of sewage sludge, the nutrient properties and heavy metal concentrations in sewage sludge were investigated from two different wastewater treatment plants in China. The results show that the OM contents were significantly different between Shenyang domestic...

Photosupercapacitor (PSC) is integrated harvesting (DSSC) and storing energy (supercapacitor) simultaneously. The increase in DSSC performance is studied through an effect of TiO2 film immersion duration on the N719 dye, which has not been investigated so far. Furthermore, the effect of stacking configuration...

Multispectral imaging has many applications in agriculture, such as the prediction of the internal qualities of fruit and vegetables. Multispectral is preferable to Hyperspectral imaging for fast in-line sorting and grading machine vision due to fewer wavelength bands applied. Oil palm fresh fruit bunches...

1, 1, 3, 3-tetramethylguanidinium lactate (TMGL) has been studied for SO2 removal. However, before using industrial scale application, several problems need to be solved, for example, the influence on SO2 absorption at high temperature. This work investigates the SO2 sorption of the 1, 1, 3, 3-tetramethylguanidinium...

A new kind of photosensitive polyester based on the hyperbranched aliphatic polyesters has been investigated. The hyperbranched aliphatic polyesters (polymer A) with 0.69 of the degrees of branching (DB) was prepared from 2,2-dihydroxymethyl butyric acid. Followed by end-modified with maleic anhydride...

Pure and Y-doped BiFeO3 have been synthesized by sol–gel method. the gel have been heated at 150°C for 3 h, the low-temperature heating treatment was given to obtain uniform, homogenous, and smaller size. The crystal BiFeO3 have been found after dried and grounded followed by calcination at 750°C for...

Electronic devices that are made from semiconductors have made a lot of progress in the size of basic components that are more practical and effective, meaning that the size is getting smaller with greater data storage. The progress of these electronic devices cannot be separated from the tunneling effect...

Hydrophilic poly (vinyl butyral) (PVB) hollow fiber membranes prepared via thermally induced phase separation(TIPS) were used for the filtration of bovine serum albumin (BSA)suspension, and the effect of filtration type on the BSA fouling of the membrane was studied. The results show that compared inside-out...

Effect of nitrogen dissolution characteristics of pond sediment by the immobilized EM technology was studied by the indoor simulation experiments in this paper. The results showed that ammonia nitrogen was the main forms of inorganic nitrogen dissolved from the sediment. The release of ammonia nitrogen...

The effect of temperature and relative humidity on the d-spacing of montmorillonite (MMT) clay in Poly(ethylene glycol) Mw 600 (PEG600) nanocomposites prepared by solution casting has been investigated, since it can be significantly affected by any associated water. X-ray diffraction (XRD) traces were...

The rules of ozone generation produced by yellow phosphorus and oxygen were carried out by single-factor experiments in this article. The results showed that with fixed yellow phosphorus concentration (2 g L-1) and oxygen volume percentage (10 %), the rate of ozone net generation reaches a maximum of...

This article presents a new technique to detect a premature atrial contraction (PAC). The technique employs a hybrid of particle swarm optimization (PSO) and fuzzy inference system (FIS), and is called PSO-FIS. In the detection electrocardiographic features are used for the inputs of PSO-FIS. In PSO-FIS,...

In this paper, Cu2+ and Fe3+co-doped titanium dioxide nanocomposite was prepared by iron nitrate, copper nitrate and titanium sulfate as raw materials and sodium dodecyl sulfate as surfactant under microwave irradiation. The x-ray diffraction (XRD) results show that as-prepared sample of direct adding...

With population growth which increases every year, it will also be accompanied by a reduction in natural resources and energy. These natural resources are in the form of food needs. With the increasing demand for food and energy needs, there must also be the development of technology in the field of...

For any graph G = ( V , E ) , the vertex set V and the edge set E, and let w be the edge weight of graph G, with ...

Supercapacitors are gaining much attention as electrochemical energy storage for their fast charging rates, high power density, good cycle performance, quicker charge-discharge, longer device life, and abundant materials. According to the storage mechanism, supercapacitors are divided into 3 types; EDLC...

Active component -SO3H of activated carbon loaded catalyst is prepared by carbide sulfonation reaction between concentrated sulfuric acid and glycerol. And effects of different reaction conditions were studied on the basis of the reduce ratio of acid value after the esterification reaction occurred in...

The aim of this research is study of Electrohydrodynamic (EHD) flow by discharge corona generator with electrodes configuration of Pin- Dual Ring Concentric. We measured the velocity of EHD flow with electrodes configuration of Pin- Dual Ring Concentric and compare the result to Pin-Single Ring electrodes....

According to the high precision testing requirements on aiming at the baseline variation of infrared sight, a measuring method of infrared sight zero momentum based on camera pose adaptive mathematical model is proposed. A new adaptive algorithm of camera pose is designed. A camera pose correction model...

The oil-gas exploitation techniques of super-deep formations in West China are facing a great challenge. Due to the super-high temperature, high pressure, salt formation, it brings enormous challenge to drilling engineering. To meet the need of drilling operation in the super-deep formations, a new kind...