Advances in Engineering Research

East Indonesia has abundant natural resources, one of which is sea cucumber. This organism has anticancer activity but it has not been explored further. Based on the database of Traditional Chinese Pharmacology System, it has 586 compounds. Thirty-seven of these compounds have molecular weight similar...

The skeleton plays an important role in sex determination in forensic anthropology. The skull bone is considered as the second best after the pelvic bone in sex determination due to its better retention of morphological features. Different populations have varying skeletal characteristics, making population...

This paper proposed one kind of improved design of pressure relay based on optical switch aiming at the problem with pressure relay, for example as large switching value, large deviation of set point, low repeatability, etc. Firstly, the structure and principium of pressure relay was analyzed, also the...

Single factor test was applied to study on the engineering properties of modified raw soil, by which the reasonable range of grass, cement, quick lime, and fly ash were determined. The effects of various factors on the bending strength of modified raw soil were studied by orthogonal test method, and...

Pattern Recognition is a very urgent research area in intelligent information processing and computer intelligent perception, such as computer vision, content-based retrieval, image-processing, etc. In general, the research on pattern recognition is carried out partial separately as feature extraction,...

Under the promotion of relevant policies in the country, China's agricultural land transfer appears to accelerating development situation. Along with the rural information infrastructure gradually improved with increasingly using of big data, cloud computing technology in the field of agriculture, the...

This research aims to analyze the influence of market attractiveness and resource capabilities against the primacy of the airlines in Indonesia. The unit of analysis in this research is the national airline company in Indonesia with the unit of observation is the leadership of the national aviation company....

The theme of World Water Day in 2015 is water and sustainable development, which arouse our great attention to clean water scarcity. There are two models in this paper. Model one is the application of system dynamics in water resources. Aimed at the dynamic nature, the main factors of level, rate and...

The article discusses the current problems of the territorial development of the rural settlement of the region. The authors considered the main approaches formed at the federal level to solve the problems of socio-economic development of the country and regions. The formation of strategic planning of...

Many buildings were built using zinc roofs in North Sulawesi province, Indonesia, there is more than 92 percent of buildings with zinc roofs. Buildings in humid tropical climates often face the problem of excessive heat due to the solar radiation accumulates, especially on roofs that can propagate into...

Nowadays, not all traditional buildings are still standing firmly on. Many of them have disappeared by nature disruption or by cultural distillation. This study aims to promote Baruk spaces meaning as a traditional house of Bidayuh, who settled in the western part of Borneo Island. Through its structures...

Based on real market research, the impact of online evaluation of cross-border e-commerce on online purchase intention was analyzed. Twelve questions are listed from four aspects, namely, basic problems, consumers’ purchase status on cross-border e-commerce platforms, the importance attached to online...

Tanamori, West Manggarai, East Nusa Tenggara, as a tourism destination area development in Indonesia needs to be supported by the existence of roads as the main means of its development. The road plan is in an area with heavy terrain so it takes a long transportation time. The limited time for completion...

The wideband microstrip antenna is a development of the purpose of this study is to design a wideband antenna at a frequency of 1030 MHz–1090 MHz which will be applied to the Monopulse Secondary Surveillance Radar (MSSR) antenna. The study uses a single microstrip antenna using the DGS (Defected Ground...

Biomass co-firing is one of alternative way for Coal-Fired Power Plant (CFPP) to achieve green energy. Indonesia as the world’s largest producer of palm oil, has the chance to convert palm oil waste into a relatively sustainable biomass for use as co-firing fuel in CFPP. Biomass combustion, on the other...

The goal of this research is to analyze the vegetative development and yield of cassava in diverse populations, as well as the Land Equivalent Ratio (LER). This research was carried out from June 2022 to March 2023 at the field of the “Vegetable Seed Production Unit” (“UPBS”), Sekincau Subdistrict, West...

Based on the basic properties of the green material itself, environmental adaptability and feeling of comfort, analyzes that green materials should follow the basic principles, that are the use of good workability, good processing manufacturability, best economy, good aesthetics, non-toxic harmless and...

The article, taking neural network (NN) as the tool and electric actuator as study object, proposes a diagnosis method for electric actuator based on self-organization competitive neural network, by which state diagnosis is realized with discrimination capacity of nonlinear dynamic system of neural network...

A supramolecular guest copolymer (PNAP-co-PAM) based on naphthol-containing monomer (NAP) and acrylamide was synthesized via Atom Transfer Radical Polymerization. The structure of supramolecular guest copolymer was characterized by NMR and GPC. And the self-assembly behavior of supramolecular guest copolymer...

To study the effect of total CFO airflow on ventilation determination and confirm the effect of airflow rate at filter end on measurement of actual degree of ventilation, this Paper first established 3D simulation model of standards flow field for degree of ventilation, by setting the initial condition...

Secure Socket Layer (SSL) technology is widely used to provide a safe and secure environment for network communications. But the Secure sockets layer cryptographic library OpenSSL-which includes cryptographic algorithm, cipher code, certificate encapsulation, SSL protocol implementation-is not absolutely...

Aims at the lacking of our research information management in the sports, we design the system of research information management in order to solve this problem. This article first analyzes the system, describes the evaluation of system process and requirement. Then, we can find the detailed analysis...

In this paper, Rare earth (La, Eu, Sm) hydroxide nanorods have been prepared by facile hydrothermal treatment of the corresponding bulk oxide powders. The obtained samples were characterized in detail by scanning electron microscopy (SEM), X-ray powder diffraction (XRD) and transmission electron microscopy...

To enhance the defense capability of information security in smart grid and protect the data exchange between intranet and external information network, a kind of safety device has been produced that achieved effective control of information network data access. On the basis of the company 's multi-channel...

Machine spiral bevel gear tooth surface will be associated with the machine error in the event of a failure, the mathematical model with the use of the new method of calculation error based on better understanding of spiral bevel gears, the error theory and the law of error flank tooth surfaces calculated....

We present an example of deterministic network models in an iterative fashion. The network has small-world effect, scale-free topology and high degree of tolerance against random failure. We propose some new parameters for this model in order to further discuss the damage rate, such as collapse-rank,...

In this paper, different proportion of activated carbon was added to the Rehmannia glutinosa continuous cropping soils including first and second stubble to adjust the phenolic acids content and microbial biomass and improve the soil environment after continuous cropping. Results showed that vanillic...

The problems of rock outcrop self-sustainability maintenance in mine construction are considered. The basic requirements to the applied types of supports are formulated. The new design solutions for some kinds of supports are proposed.

LiFePO4/C microspheres were synthesized by a rheological phase method using nanoplates assembled quasi-microspheres of FePO4·2H2O as raw materials, and the FePO4·2H2O precusors were synthesized via a hydrothermal process. The FePO4·2H2O precursors were characterized by XRD and SEM, and the LiFePO4/C...

Hangjin 2# clay (HJ) was used as the supporter for nanoscale zero-valent iron (nZVI) to fullfil an affordable and efficient decontamination material HJ-nZVI. In comparison with the kaolinite (K) and montmorillonite (M) supported nZVI materials (K-nZVI and M-nZVI), HJ-nZVI exhibited the best performance....

The treble-circuit transmission lines are widely used to increasing energy transportation efficiency and saving land. Because of symmetrical electric structure, the treble-circuit transmission lines suffer from lightning trip-out for more than one circuit in a lightning strike. In this paper, an analysis...

The rational use of limited land resources is of great importance to the division of land space and the coordination of man land relationship, strictly implement the ecological function orientation of Karst mountain area, on the basis of scientifically defining three kinds of space: Town, agriculture...

The optical current transformer play an important role on the security and stability of the power system especially HVDC. The HVDC control and protection system cannot be field verified without field simulation for the optical current transformer secondary signal. But the existing method for field simulation...

Multi-level inverter is now becoming an efficient and promising technology in sorts of applications, especially in high level voltage inverters. However, the unbalanced voltages between two DC-link capacitors while operating the Neutral Point Clamped (NPC) three-level inverters is an inherent problem,...

In view of the backward lighting control methods in many domestic railway stations,an automatic lighting control scheme using industrial PC as control core and wireless sensor network to collect illuminance information for feedback control is proposed.The wireless sensor network is designed to achieve...

Currently, there is the practical reliability of roads in terms of safety, durability, maintainability, operability and other important consumer properties of the groups of providing of significant speed, continuity, convenience and traffic safety. These include throughput and traffic load, permissible...

Integrated Pest Management (LIPM) is an innovation of Integrated Pest Management program to achieve effective sustainable agriculture in a wide area. This program has been implemented in some regions as the Indonesia's food storages including Central Java, East Java and West Java. Research on the application...

Over the past few decades, nano-sized semiconductor powders for use as photocatalytic degradation of organic pollutants have attracted attention due to many advantages. In this research, a new composite material WO3-ZnO/molecular sieves (MS) was synthesized by precipitation method and hydrothermal method....

At present, with the development of social economy and science and technology, the application of computer network technology in social life is more and more extensive. As an important part of network communication technology, transmission technology has become the main research direction and people...

Compared with the traditional domain ontology construction method and the lifecycle thinking of software engineering, the main steps of constructing the domain ontology are to construct purpose, overall design, detailed design, ontology consistency test and ontology evaluation. Using "Thesaurus for Geographic...

According to the basic idea of autonomous decentralized system, this paper divides the various units of off-grid DC micro-grid into different roles , and each roles are given specific control objectives and control strategy. In order to verify the effectiveness of the proposed off-grid DC micro-grid...

The assignment problem of the unmanned aerial vehicle (UAV) cluster to target group is analyzed based on the Holon theory. The formation process of the air fleet Holon alliance is the process of the unordered UAV cluster form into columns satisfying the tasks demand. The total task of the target group...

This paper introduces a design scheme of handwriting touch screen. In this scheme, the LED display is used as the display device, in addition special light pen, no additional parts required to achieve click, drag, handwritten Chinese character input and other operations in LED screen. The display uses...

The Bohai Strait cross-sea channel, an undersea tunnel, is proposed to connect Dalian, Liaoning province and Penglai, Shandong province. The construction of the Bohai Strait cross-sea channel project can restrict the important project of national development from a certain angle, and it is helpful to...

Phthalates, which were widely used as plasticizer and additives in various consumer products, were found to be associated with reproductive disorders in both men and women through their interaction with endocrine glands. These synthetic compounds, which could interfere or disrupt the normal synthesis,...

In this paper, we focuse that the existing k-anonymity does not fully consider the privacy protection degree issues of sensitive attribute, proposing a (p, )-sensitive k-anonymity privacy protection model based on privacy protection degree grouping of sensitive attribute. The solution can not only effectively...

The purpose of this study was to assess the financial performance of the Jambi City Government using the Brown analysis method. The data used in this study is quantitative data sourced from the BPK RI Audit Result Report Jambi representatives for the period 2016 to 2019. Measurement of the financial...

Several studies related to water quality assessment using the water quality index uses several water quality indices, including the water quality index (WQI), water pollution index (WPI), and river habitat Survey (RHS). Water pollution control is needed to achieve an ideal level of environmental health....

Ultrafiltration (UF) membrane has become an alternative technology in water and wastewater treatment due to its low energy requirement. However, the application of conventional UF membrane is limited by its low rejection to soluble compounds, such as dyes in textile wastewater. In this work, a UF membrane...

Since its break out in 2019, the Covid - 19 pandemic has affected many aspects of life. The viral disease even endangers human civilization due to the highly virulent and fatality of its effect. The virus has been known to disturb human pulmonary system through cytokine storm occurrence. The pulmonary...

This study examines the application of non-destructive techniques, particularly ultrasonic pulse velocity (UPV), for evaluating the structural soundness and deterioration patterns of limestone. Comprehending the mechanical and physical features of limestone is crucial for maximizing its utilization,...

In situ 4.9wt.%TiB2/2024 composite has been successfully prepared by displacement reaction and spray deposition technique, and its microstructure and wear behavior were investigated. Experimental results have shown that in situ TiB2 particles uniformly distributed in the matrix, and the grain size of...

By means of 3 d laser scanning technology has rapidity, non-contact, high density, high precision features, such as the mining subsidence area on the station point cloud data registration, denoising, model building, such as pretreatment, can get real and effective information and visualization expression...

The hybrid energy storage is used to stabilize the wind fluctuations for intermittent generation and random of distributed generation system in DC micro network. The power of wind farm is analyzed by Fast Fourier transform (FFT) while the minimum hybrid energy storage compensation capacity is obtained...

In this paper, we investigate the low-rank tensor completion problem, in which we wish to estimate missing values of tensors from incomplete samples its entries. In real world, the low-rank tensor can be seen everywhere and the exact rank of it is often known. Based on the fact that singular values before...

Rogowski coil induction voltage is very small, and sometimes only a little or less. After the back of the circuit and other parts of the signal, the signal will almost decay to close to zero, and become very susceptible to external interference and distortion, which resulting in the back of the measurement...

This article, based on linearized equation of movement, considers an aerodynamical stability of bundled phase of overhead lines, covered with ice in wind flow. The Hurwitz criterion is used for determining critical speed of wind flow, when appears loss of stability of bundled phase. It is analyzed relationship...

With the social economic development, the construction of urban rail transit project in time, more and more attention at home and abroad industry total FBI urban rail transit engineering systems. Urban rail system construction process is the most important mechanical and electrical systems, from systems...

In view of the complexity of background and the variety of text in natural scene images, a multi-channel FASText based text detection method for natural scene images is proposed. To detect more texts as much as possible, the character candidates are extracted by proposed multi-channel FASText algorithm...

Air drag can affect the cruising ability of pure electric vehicles, especially in the case of high-speed driving. In this project, using 3D laser scanner, we can acquire the point cloud data of the Model S vehicle of Tesla, and the STAR-CCM+ software of Siemens is used to analyse the aerodynamic performance[1]...

Environmental issues have become increasingly prominent in China. Studying on the relationship between carbon emissions and energy consumption can help us to realize the target of reducing carbon emissions in 2020. The article studies the dynamic relationship between carbon emissions and energy consumption....

Dynamic analysis of nonlocal-gradient elastic nano-beams resting on an elastic foundation is investigated in this paper. The nonlocal-gradient elastic beam model, which has two independent gradient coefficients, based on the classical nonlocal elasticity theory and strain gradient theory, can be interpreted...

The hydrophobic properties of lotus have won support among the people. It can not only resistant to the condensation of water, but also has the function of self-cleaning and anti-pollution. Super-hydrophobic coating has a great practical value in real life.The super-hydrophobic coating materials were...

To take full advantages of high-strength concrete (HSC) and steel fiber reinforced full-lightweight concrete (SFRFLC), a new type of composite beams was suggested, which was cast by HSC superposed on SFRFLC in certain relative depths. Based on the tests of 13 reinforced HSC (in strength grades of C60...

The influence of ball milling on the structure and the electrochemical properties of La0.7(Mg0.25Ti0.05)(Ni0.85Co0.15)3.5 hydrogen storage alloy was investigated systematically. The XRD results show that the main phases of the alloy are a (LaMg)Ni3 phase with the PuNi3-type rhombohedral structure and...

The State Administration of Grain has released the Suggestions of Popularizing the Utilization of High-Tech in “Eleventh Five-Year” In Grain Industry and the Comments And Suggestions of Mid-Long Term (By 2020) Scientific and Technological Development Plan of China’s Grain and Oil, and has vigorously...

Crowd people segmentation algorithm in complex environments is proposed based on Bayesian formula. In this method solved the case of the occlusion of crowd pedestrian which are difficult to detect one pedestrian from each other. This algorithm uses the Bayesian formula to convert the problem that how...

Material mode of existence, inevitably determines its color, texture, feel, and other physical properties and chemical properties, a good designer should also be a fantastic material user. He can produce emotional communicate with material, will put the material in one of the most appropriate location....

This paper developed a denoising method termed f-x empirical-mode decomposition (EMD) predictive filtering. In this new method, we first applied EMD to each frequency slice in the f-x domain and obtained several intrinsic mode functions (IMFs). Then, an autoregressive model was applied to the sum of...

Terrace houses are the typical housing typology in Malaysia. Thus, study on thermal comfort is always associated with terrace houses. Installing roof thermal insulation is important in energy saving, however, due to the availability of air conditioning it has not been a regular practice. To reduce air...

This research aims to determine the optimum rotational speed of homogenizers in the production of VCO emulsion using soy lecithin as the emulsifier. This research began with determination of the rotational speed, where water and VCO were added into a measuring cup according to the predetermined volume,...

Aiming at the problem of accurately and efficiently segmenting the ground from the 3D Lidar point cloud, a ground segmentation algorithm based on the features of the scanning line segment is proposed. The algorithm performs denoising and pose correction on the 3D point cloud and divides the scan line...

This paper presented a method of fault-tolerance for secondary-system information in smart substations. It was to solve the problem of information redundancy. This article drew on a method of state estimation on the primary-system and used the calculation of measurement-equation residuals to identify...

Since 2011, Government of Semarang City has planned the construction of a rail-based Mass Public Transportation System. This discourse is getting closer to realization in mid-2018, where the Semarang government sets Light Rail Transit (LRT) as the rail-based Mass Public Transportation System that will...

Indonesia is a country that has the largest coconut plantation in the world, with its main copra products. The quality of copra produced from rural areas is low and complained by the international market because it is thought to contain aflatoxin. This paper describes the fast-drying machine to produce...

To reduce the toxicity of oiled land plants-accumulators were used. Para-aminobenzoic acid and the biological preparation Baikal EM-1 were used with biologics and zeolite-containing clays. It was found that seeding accumulating plants treated with the Baikal EM-1 biological product, repeated watering...

Modern requirements for resource saving seriously raise the issues of secondary use of basic raw materials and auxiliary materials in the production cycle. Food production, in addition, uses water in significant quantities and as an auxiliary material. Unconditional superiority in such processes is occupied...

The narrow particle size distribution of poly (vinyl silicone) microspheres were prepared by the hydrolysis-polycondensation method with vinyl silane (VTMS) as raw materials. And the influences of pH value, oil/water ratio on the morphology, particle size and distribution of the microspheres were studied....

As a reliable technology for connecting a new steel element to the existing concrete structures, the post-installed anchorage is widely used in the field of structural retrofit and strengthening. In order to analyze the mechanical behavior of post-installed anchorage between steel and concrete under...

For mode I surface-cracks detected from structures, a method to evaluate stress intensity factors Kest was suggested by measuring the opening displacement distributions along the crack and calculating stress distributions around it. The stress intensity factors of surface-cracks with different lengths...

The stable isotopic labeling reference materials play an indispensable role in the verification and calibration measuring instruments, evaluation analysis methods, determining the material characteristic and the quality control in the process of production. Therefore, it has great economic and social...

Alternative fuel oil that is renewable and environmentally friendly because it is made from vegetable oil, one of which is biodiesel. Biodiesel has a biodiesel composition produced from unsaturated fatty acids that cause oxidative degradation of biodiesel. The hygroscopic nature of biodiesel is susceptible...

Currently, in Indonesia, lower limb amputees were utilizing a static cosmetic foot prosthesis which is not efficient. The development of a cutting-edge foot prosthesis which can store energy is need to be conducted. The Energy Storage and Return (ESAR) foot prosthesis is designed to store energy during...

Driven by global warming, permafrost degradation has significant implications for the global climate system, especially in its potential to alter the carbon budget and biodiversity of terrestrial ecosystems. This study seeks to clarify the nexus between permafrost degradation and carbon budget dynamics...

The maritime world is very rapidly developing today and requires human resources who are very skilled in their fields, also the maritime world is not a business without risks, one of which often occurs is ship accidents, both caused by external factors and internal factors such as bad weather, high waves...

This study involves the preparation of epoxy-based pervious surface materials by mixing snow-white sand with epoxy resin in the range of 10~20 mesh. During the research process, it was observed that the self-made permeability agent T20 significantly reduced the contact angle of the adhesive material....

In order to enhance the sheave buffer damping efficiency of the carrier-based aircraft arresting system, and improve the damping characteristics of the buffer and the suitability of the load, the multi-hole hydraulic buffer is brought to substitute the conventional hydraulic buffer, the two type hydraulic...

In this study,grafting modification silicon carbide powders were manufactured successfully by KH-550 and acrylamide monomer in nitrogen atmosphere, and the modified silicon carbide epoxy foam resin grinding wheels were prepared by mixing epoxy resin with silicon carbides. The structure of the modified...

he distribution characteristics of the in-situ stress for the mining area of Liuhuanggou mine field was tested by using the stress relief method.The value of the in-situ stress of the non-exploited region was predicted by using the theoretic analysis method and the advice of roadway layout was put forward.

The monolithic cylindrical fused silica resonator is the critical component of a cylindrical resonator gyroscope, and the Q factor is the key parameter to evaluate the performance of a cylindrical resonator. In this paper, a non-contact measurement system based on acoustic excitation and laser Doppler...

High heat removal efficiency is an important requirement for the W/Cu divertor monoblocks in the design of future fusion reactors. In this study the stationary surface temperature distribution and the effects of armour thickness and coolant flow velocity on the thermal behavior of W/Cu monoblocks under...

A generalized variable-coefficient coupled Hirota-Maxwell-Bloch system is investigated, which can describe the ultrashort optical pulse propagation in a variablecoefficient nonlinear, dispersive fiber doped with two-level resonant atoms. Based on the obtained Lax pair, N-fold Darboux transformation (DT)...

Grounding grid is an important device guaranteeing the operation of the people, electrical equipments and power grid. However, the corrosion of grounding grid affects the security of the power grid system, what's worse, it makes huge economic losses and serious social impact. We found from the research...

The magnesium alloys with rare earth element Gd were prepared by induction melting furnace. Influences of Gd on the microstructure and mechanical properties of AZ91D were investigated. The results showed that addition of Gd to AZ91D alloy could refine the microstructure including primary -Mg phase and...

We study a pure iron billet placed in an induction furnace. The magnetic reluctivity of pure iron varies strongly according to the temperature. The volumic power and total current in the billet increase linearly with temperature. But, before and near the Curie point, those parameters increase very strongly....

With the progress of science and technology, the computer experiment teaching model has been promoted, verifying test has been decreasing, and computer teaching experiment plays an important role in teaching. Currently, for the shortcomings and limitations in the computer experiment teaching, a reasonable...

The Taiwan Photon Source at National Synchrotron Radiation Research Center selects the KEK-B type superconducting radio-frequency (SRF) module to deliver RF energy to the 3-GeV electrons circulated in the storage ring. Each SRF module has its own control valve box to adjust the flow rate of transferring...

Future satellites require higher and higher payload’s pointing precision and attitude stability, it is urgent to suppress micro vibration efficiently. This article designs a low thrust, high precision flat electromagnetism actuator. Firstly, the article designs the configuration of the actuator .Secondly,...

In order to extract looseness fault feature for a generator set, the paper introduces a new time-frequency analysis method, called frequency slice wavelet transform (FSWT). The time-frequency distribution of signal is firstly processed by the FSWT. Then some interesting regions on the FSWT time-frequency...

With the development of the times and social progress, 3D printing technology of our country gradually began to rise, is a kind of rapid prototyping technology in the present stage of our country, has gradually entered people's life, aroused people's interest and attention, and has been in a number of...