bluuebunny/crossref_metadata_2025 huggingface dataset:
Initial Results on Landuse/Landcover Classification Using Pixel-Based Random Forest Algorithm on Sentinel-2 Imagery over Enrekang Region
Authors: Nurfadila J S , Baja S , Neswati R , Rukmana D , Zylshal Z
Published: August 2019

Land use classification is the basis for making further policy in many fields including agriculture. Effective methods in landuse/landcover (LULC) classification are essential for later application in policy making. The development of remote sensing technology has been increasing rapidly. The use of Earth Observing (EO) Sentinel-2 imagery can greatly help LULC mapping over large area. As the basic input on the assessment of land availability and suitability, it is important to perform LULC in such way that it is objective, replicable, and accurate. This study aim to performed state-of-the-art Random Forest algorithm on multitemporal Sentinle-2 imagery on LULC extraction over Enrekang Region. With its 10 m spatial resolution as well as multitemporal information, acquired on December as a representation of the rainy season and in July as a representation of the dry season, it is expected to produce a more optimal LULC maps. Confusion matrix were then performed using visually interpreted Pan-sharpened and orthorectified SPOT-6/7 imagery to calculate the accuracy. The output of LULC classification based were expected to reach 95% overall accuracy.
Carbon stock estimation of seagrass species thalassia hempricii using planet imagery with band ratio transformation in nirwana beach, padang city
Authors: Isnaen Zulfikri , Pratama Abimanyu Putra , Utami Adriati Annisa , Prananda Aldo Restu Agi , Purnama Andes Dias , Zhafarina Zhafirah , Wicaksono Pramaditya
Published: August 2019

Coastal ecosystems such as seagrass beds can store large amounts of carbon over a relatively long period of time, so a special study is needed for the seagrass ecosystem. Nirwana Beach located in Padang City presents an overview of extensive seagrass ecosystem. The carbon stock is estimated by utilizing Planet imagery with spatial resolution 3m with band ratio transformation method. Band ratio used are band ratio Green / Blue, Green / Red, and Blue / Red. Data processing is done based on correlation analysis and regression analysis between band ratio pixel value on image with value of carbon stock in field. The results show that band ratio of Green / Red has the highest r2 indicating a strong correlation relationship. The carbon stock in Nirwana Beach with total carbon 3,776,42 gC / m2 or or 3,78 kgC / m2. Accuracy test is done with standard estimate error where the highest accuracy value is obtained through the Green / Red band ratio with accuracy percent 59.98%. This research shows that the carbon stock estimation in Nirwana Beach is underestimate.
Adhesion and heat build-up of rubber for energy-saved tyre
Authors: Suethao S , Smitthipong W
Published: August 2019

The objective of this study was to investigate the effect of crosslinking systems (conventional and efficient systems) on the contact mechanics and heat build-up of natural rubber (NR) tyre mimicking samples. The JKR (Johnson, Kendall and Roberts) experiment has been established to measure the contact mechanics in NR samples at different vulcanization systems. Work of adhesion obtained from JKR model is in good agreement with that calculated from contact angle measurement. From the contact mechanics point of view, the adsorption of the rubber to the glass slide surface plays a major role in the strain energy release rate. Higher rubber free chain samples (unvulcanized rubber) represent higher adhesion hysteresis and higher heat build-up compared to vulcanized rubbers whichever was the vulcanization system. Finally, rubber sample obtained using efficient vulcanization has the lowest adhesion hysteresis and heat build-up. These results suggest that the rubber with efficient vulcanization is preferable for the application of energy-saving tyres.
Research to Develop International Standards for Rubber Household Glove and Rubber Thread
Authors: Wirasate S , Pinprayoon O , Sunintaboon P , Nimsuwan C
Published: August 2019

The international standards for rubber household glove and rubber thread were firstly initiated as New Work Item Proposal (NWIP) standard drafts. In order to obtain the ISO international standard, several levels of the standard drafts (NWIP, CD, DIS and FDIS) have to be achieved accordingly. To develop the standard drafts, the existing national standards ((TIS 2476-2552 for rubber household glove specification and TIS 2556-2554 for rubber thread specification) and information gathering from the meetings among the involved parties, e.g., producers, users and academic experts, visiting the companies, and product sampling test results were analyzed and standard drafts were prepared. For each level of the standard drafts, the drafts were submitted to the ISO representative for circulation to the authorized ISO members for comment and voting. Then, in the ISO meeting all comments were answered, rebutted and discussed. After the discussion in the ISO meeting, the conclusion related to the standard draft was given. The international standards for rubber household gloves (ISO 20057 Rubber household gloves – General requirements and test methods) and rubber thread (ISO 20058 General purpose rubber thread – Specification) have been published and used since 2017.
Identification of bacteria caused bad odors in the rubber plants
Authors: Choowongkomon K , Pumloifa S , Hansupalak N , Insuan W
Published: August 2019

The problem of odor from the rubber latex industry is a major problem in the rubber industry. Due to complaints about odors from the people in the industry areas. One cause of odor may be associated with the biodegradation process by bacteria such as carbohydrates, proteins, etc., which are present in the serum. And gas generation. At present, industrial plants use water-absorbing odor to reduce the intensity of odor, but it is not very good. Therefore, if you can eliminate the microorganisms that cause odors. It may help reduce the intensity of the smell. This research was conducted to isolate microorganisms from rubber plantations and rubber plant for odor analyzed use in GC-MS technique. Comparing the gas composition with the gas data obtained from the actual air sampling. Odor composition analysis It found that the rubber and lump rubber composed with Acetic acid, propanoic acid, 2-methyl-propanoic acid, butanoic acid, 3-methyl-butanoic acid, pentanoic acid.
Microwave Irradiation Synthesized Cobalt-Loaded Nitrogen-Doped Active Carbon as an Efficient Catalyst for Selective Oxidation of Ethylbenzene
Authors: Zhan H J , Yang W H , An M Q , Zeng N , Hu Y R , Ma X T , Zhao L
Published: August 2019

Microwave irradiation technology was used to dope nitrogen on the active carbon using dicyanodiamide as nitrogen source. The obtained nitrogen-doped active carbon was then modified by an ion impregnation method to load cobalt ions. The as-prepared cobalt-loaded nitrogen-doped active carbon (Co–N–AC) was characterized by techniques such as XRD, SEM, XPS, EA and AAS and the catalytic performance was evaluated via the selective oxidation of ethylbenzene under solvent-free condition using molecular oxygen as oxygen source. The results showed that 23.2 mol% conversion of ethylbenzene and 95.7% selectivity to acetophenone was obtained over 3%Co–N–AC, in which the excellent catalytic performance of the catalysts may be attributed to the stable doped N, the highly dispersed Co on the surface of AC and the structure of Co-N bond.
Effect of Hybrid Alumina/Aluminium Foil Dome Diaphragms on Sound Performance of Loudspeaker
Authors: Zung Christian , Cai Ran , Levitsky Igor , Nie Xueyuan
Published: August 2019

Plasma electrolytic oxidation (PEO) technology enables to fabricate a nanostructured ceramic top layer on an aluminium foil, called hybrid alumina/aluminium material, which has the enhanced properties like hardness, stiffness, wear resistance and corrosion resistance. In this work, PEO nanostructured coatings were applied to aluminium speaker domes to study what effects PEO coatings could offer. A set of treated domes were processed to have a thin coating and the other processed to have a thicker coating. Afterwards, the speaker domes were conducted with several tests and measurements. From the frequency range of a low frequency (200 Hz to 5 kHz) there was very little downside to adding the coating, only at middle frequencies (5 kHz to 12 kHz) a slight decrease in sensitivity can be found. In high range frequencies (12 kHz to 14 kHz) the sensitivity in dampening and sound distortion resistance was increased. In general, these qualities should lead to a better, cleaner sound quality reproduction.
From the ReRu-rich δ Phase to the Intergrowth of the P and the σ Phases in Ru-bearing Ni-base Superalloys
Authors: Wang Chunhui , Chen Yanhui , Chen Jingyang , Xue Fei , Li Wei , Yang Luyan
Published: August 2019

The morphology, composition, structure and formation mechanisms of precipitates in three Ni-base single crystal superalloys containing 3.2 at. % Ru by adding Cr (0 to 6.5 at. %) were investigated. The precipitation speed in the Low-Cr alloy was low at a temperature of 1100 °C. The ReRu-rich δ phase, with a hexagonal structure, was the primary phase. A high quantity of precipitates appeared in the high Cr alloy after 50 h of heat treatment. The quantity increased rapidly from that time. The σ phases dominated the precipitate after a short period of heating at 1100 °C, with the orientation relationship corresponding to [111]
γ/γ′ // [111]
σ
and (110)
γ/γ′ // (110)
σ
. The σ phase transformed into the intergrowth of the σ and the P phases discontinuously through the σ needle as the exposure time increased. The large elemental γ/γ′ partitioning ratio of Re in 6.5 at. % Cr was the key factor that promoted nucleation in the σ phase.
Preparation and Characterization of Monodisperse Magnetic Carbon Microspheres with Controllable Shell Thickness and High Water Solubility
Authors: Liang Shengji , Chen Kui , Han Jinling , Wu Bin
Published: August 2019

Core-shell magnetic carbon microspheres with good monodispersity and uniformity were obtained. Good monodispersity was achieved by adding a dispersant in the solvothermal synthesis of magnetic core, as the criterion for good dispersibility was set up through dynamic light scattering (DLS). The excellent dispersing agent (Poly (4-styrenesulfonic acid-co-maleic acid, SS: MA = 3:1) sodium salt, PSSMA) has been selected among three dispersants, which greatly improves the dispersibility of the magnetic core in the coating environment, thereby obtaining a core-shell structure with uniform coating and monodispersity. Carbon shell was gained by deposit coating process of resorcinol formaldehyde resin (RF) onto the magnetic core and then subsequent carbonization under N2 atmosphere. At the same time, the carbon shell thickness can be adjusted up to 70 nm by adjusting the RF shell thickness which is tunable ranging from 30 to120 nm.
Influence of Casting Temperature of Low Carbon Steel on the Interface Layer of Composite Protective Plate
Authors: Gao Hui , Zhang Wenbing , Chen Shumei , Lyu Kuilong
Published: August 2019

Based on the liquid/semi-solid bimetal composite casting technology, the low carbon steel/the high chromium casting iron wear-resistant plate was prepared, and the casting temperature of the low carbon steel was investigated on the microstructure and the mechanical properties of the bimetal composite plate. The action of the reasonable casting temperature can make the two kinds of metals play to their excellent properties, and not only has the high wear resistance, but only guarantee to achieve strong match between two kinds of metals. The results showed that the low carbon steel at different casting temperature was poured into the mold, and its upper surface was in the semi-solid state. The semi-solid contact areas between the low carbon steel and the high chromium casting iron have evolved into into the interface layer, and there is no porosity and inclusion in the interface layer . The metallurgical bonding quality is good, and the Rockwell hardness is about 50∼52HRC, and tensile strength of is about 550∼610MPa.
Influence of the Mechanical Properties of B4C/Al Composite with Graphene Nanosheet Dopping
Authors: Zhang Liu , Wang Zhi , Shi Guopu , Li Qinggang , Wu Junyan
Published: August 2019

Graphene nanosheet has been brought to the B4C/Al composites to investigate the microstructure and mechanical properties of the materials which were prepared via vacuum hot press sintering at 680 °C, with sintering pressure of 30 MPa and soaking time of 90 min. XRD analysis illustrated that there was only one new phase AlB2 detected out in the composite after sintering. The composite without GN addition was endowed better density than the GN addition one. Nevertheless, the mechanical properties of GN addition composite exhibited more superior than that of non GN addition composite, Vickers hardness, bending strength and fracture toughness were achieved respectively 54.13 ± 4.57 Hv, 238.36±10.24 MPa and 4.23±0.12 MPam1/2. In summary, GN has played a satisfactory character in promoting the mechanical property of B4C/Al composites in the present experiment.
Research on Application of New Types of Fiber Reinforced Composites in Safety Technology
Authors: Wei Huazhen , Wang Danyong , Liu Juncong , Zhang Haiyun , Li Shuhu , Liu Yadong
Published: August 2019

Application and key manufacturing technologies of new types of fiber reinforced composites in safety ranges were reviewed in this paper. To make full use of high-property kinds of fibers and develop more better-property fiber reinforced composites, the corresponding goodness and weakness and manufacturing key technologies are given so as to find appropriate and innovative new-technological cases and provide suggestions support for deeper researches.
Simulation Analysis of Flow Field in Engine Compartment of a Rear-Mounted Exhaust
Authors: Xie Y Y , Zhang L Q , Yan Y L , Qiu S W , Tan C Z
Published: August 2019

The numerical simulation of the flow field in the engine compartment of a car is the basis for the evaluation and research of the air flow characteristics in the engine compartment. In this paper, the computational fluid simulation software STAR-CCM+ was applied to simplify the vehicle model of a rear-mounted exhaust. The surface wrapper and surface remesher were used to obtain the whole vehicle surface mesh. Combining with the vehicle wind tunnel model was generated the volume mesh based on Trim mesh sub-regional method. Then, the finite element model of the car engine compartment was established. Three-dimensional flow field in engine compartment was analyzed under reasonable boundary conditions, and found the reflow at climbing is more apparent as compared with that at high constant speed. Then the flow rate experiment of the whole vehicle was obtained wind speed value of the windward surface of the radiator. The error between the simulated value and the experimental value is within 10%, indicating that the simulation model established in this paper is reliable and possesses high simulating accuracy.
Effects of Three-Step Aging on Microstructure and Stress Corrosion Cracking of 7N01 Aluminum Alloys
Authors: Wang Shuai , Luo Binghui , Zheng Yaya , Tan Sizhi , Jiang Gen , Cai Guochao
Published: August 2019

The precipitation of 7N01 alloy after three-step ageing treatment at 65°C, 100°C and 150°C has been investigated. The SAED results show that at 65°Cpre-aging the GPI zones were precipitated from the quenched solid solution and aging at 150°C results in evolution of the GPI zones formed during under ageing into the η’ phase. It was found that compared with the two-stage aging(T74) and T6 aging, pre-aging at 65°C significantly increased number density of η’ phase. The modified microstructure results in tensile properties comparable to that of the T6 temper, but with significantly improved the resistance of stress corrosion cracking performance.
Experimental Study on Splitting Strength of AC-25 Emulsified Asphalt Cold Recycled Mixture
Authors: Sun Zhaohui , Song Zhiqi , Cheng Hanyag , Sun Weidong
Published: August 2019

In the asphalt pavement design, determining reasonable structural parameters plays an important role in reducing early damage to the pavement and increasing use time of the pavement. Based on the optimized design, the dry-wet splitting strength and freeze-thaw splitting strength of AC-25 cold recycled emulsified asphalt mixture were studied. The results indicate that the dry-wet splitting strength of AC-25 cold recycled emulsified asphalt mixture is much higher than the technical requirements of the specification. The ratio of dry-wet splitting strength and the ratio of freezing-thawing cycle strength meet the indicators of the specification. Engineering application can refer to grading results of design.
A Facile Synthesis of TiO2 with Enhanced Photocatalytic Performance for Removal of Methylene Blue
Authors: Xie Hu , Wang XinRan , Chen Jianjun
Published: August 2019

Titanium dioxide (TiO2) is the most representative and widely used photocatalyst. To further enhance the photocatalytic efficiency of titanium oxide, in this study, we developed a facile hydrothermal method to synthesize iron-doped TiO2. Iron-doped TiO2 was synthesized by hydrothermal method with titanium monoxide as raw material and iron sulfate as the dopant. The color of the TiO2 powder was light yellow andthe powders were characterized using scanning elecrron microscope,X-ray diffraction, and We demonstrated enhanced absorption of TiO2 towards visible-light and enhanced photocatalytic efficiency through iron-doping method.
Agricultural Sustainable Development and Economic Stability in Northeast China under Climate Change
Authors: Chen Yilin , Wu Nan
Published: August 2019

At present, a sustainable agricultural development is extremely important for economic backwardness in the northeast of China to stabilize local economy and prevent economic disaster. The paper is constructing an economic climate model of northeast region, the inspection result of this model represents: climate warming, drought, and extreme climate bring significant negative effect towards cereal output in northeast region; and this paper also represents the analysis results that the price, labor force, capital and technology inputs have a positive effect on cereal output. Recognizing these impacts correctly and taking active measures will be favorable to ensure a sustainable development and regional economic stability of the northeast region.
Effect of CaO on Phase Separation and Properties in Na2O-CaO-SiO2-P2O5 Opaque Glass
Authors: Luo Lida , Li Zihao , Wang Qingwei , Lan Kaidong , Jiang Weizhong
Published: August 2019

In the Na2O-CaO-SiO2-P2O5 opaque glass system, the effects of CaO on the phase separation and properties were investigated by means of SEM, XRD, UV-VIS Spectro Photometer, Thermal dilatometer, etc. The results showed the size of the second phases enriched with phosphate became smaller from 200nm to 80nm with the increase of CaO concentration. CaO had clear influence on the transmittance of opal glass, and the glass was changed into semi opaque when the amount of CaO was 12%. It also affected the crystallization of the glass samples, especially in crystal peak intensity of the Na3Ca6(PO4)5 and Zn2P2O7. the coefficient of thermal expansion of sample was reduced but the density increased with the increase of CaO concentration. Results showed that Calcium ions in Na2O-CaO-SiO2-P2O5 system was good to bind with the P ions and boost the separation of the second phase and the crystallization.
Clinical Application of Intelligent System of Weaning from Mechanical Ventilation
Authors: Wang Na , Han Wei , Wang Zaitang , Li Qun
Published: August 2019

Long-term mechanical ventilation is associated with many complications. Intelligent weaning from mechanical ventilation system benefits patients with mechanical ventilation, especially those who have difficulty in weaning from ventilation. It is another great progress in the application of artificial intelligence in medical practice.
Research on Residual Stress of Cr12 Surface Layer after Rolling Processing
Authors: Qi Kaihua , Guo Peiquan , Zhang Haiquan , Qiao Yang
Published: August 2019

In normal temperature, the effect of rolling motion and extrusion stress will lead to the occurrence of subgrain size refinement, changes of the dislocations and phase transition caused by plasticity, which will change the mechanical properties of the workpiece’s material on the surface layer and directly affect the fatigue strength and service life of the workpiece. In this paper, the residual stress of Cr12 after rolling processing by different rolling pass and contact stress are studied through experiments. Through the analysis of the test results, it is shown that: with the increase of rolling pass, the residual stress on the workpiece surface layer increase continuously, after rolling 3 passes, the residual stress will no longer continue to increase and remain stable. When the contact stress is less than 717 MPa, the residual stress increase obviously, and when it reaches 717 MPa, the residual stress keep relatively stable state with the increase of contact stress. In the depth direction, the residual stress decreases with the depth, and the maximum residual stress may appear at a certain depth from the surface.
Application of Alginate Oligosaccharides and Sodium Alginate in Breast Abscess Incision and Drainage
Authors: Miao Yayun , Sun Tong , Sun Guang
Published: August 2019

Objective: To evaluate the efficacy of alginate oligosaccharides and sodium alginate (seaweed biological glue) after incision drainage for breast abscess. Methods: randomly selected 80 patients with breast abscess, observation group and control group 40 cases, observation group using alginate oligosaccharides, sodium alginate (seaweed biological glue) for postoperative patients with breast abscess incision drainage treatment disposal, the control group with saline treatment disposal, using t test to compare two groups of patients with postoperative incision healing time, switching frequency, the satisfaction degree of the patients of postoperative scar, using chi-square test to compare the postoperative recurrence rate. Results: the incisions of the two groups were completely healed, and the observation group had shorter healing time, fewer drug changes, lower recurrence rate and higher satisfaction to postoperative scars than the control group. Conclusion: the treatment of patients with breast abscess after open and drainage with algal oligosaccharide and sodium alginate (alginate biogel) after operation can significantly shorten the wound healing time of patients, reduce The Times of dressing changes, and improve patients’ satisfaction with scars and reduce recurrence.
Analysis of Ultrasonic Vibration Belt Grinding Processing Method
Authors: Wu Qingling , Wang Cui , Cui Mingming , Liu Qiang
Published: August 2019

The sand belt abrasive distribution is relatively uniform, the grinding property is good, it is not easy to burn the workpiece. The sand belt grinding process has great flexibility and adaptability, it can be used for grinding of inner and outer circles, plane and complex curved surfaces. Compared with the closed belt, the open belt is continuously feed slowly. During the grinding process, new abrasive grain continuously enters into the grinding area. The surface quality is good, and one workpiece can be processed in one installation, reducing the assembly error caused by replacing the belt and shortening the processing time.For ultrasonic assisted machining technology, the two-dimensional ultrasonic assisted grinding have better processing results in reducing the grinding heat, the wear of the abrasive tool and the grinding force. By referring to the above processing techniques, this paper proposes a two-dimensional ultrasonic vibration open belt grinding processing method.
Research on Scheduling of Furnace Loading Quality Maximization in Forging Heat Treatment Process
Authors: He Fei , Wang Zeyu , Shen Kang , Jia Rongjing
Published: August 2019

In this paper, the optimal scheduling problem of batch furnace charging is carried out for the furnace of the heat treatment process system in the forging industry. The scheduling research aims at maximizing the quality. Firstly, according to the production capacity of each heating furnace in the system, the maximum capacity and the minimum energy consumption of the system are solved and the loading capacity of each furnace under the optimal production is given. Then through the continuous batching of the forging batch furnace charging, and regress to the discrete problem research. finally, the optimization research of the furnace quality is realized, which provides a new scheme for the research of the forging furnace charging scheduling problem.
Research and Application of Underwater Wet Welding Technology
Authors: Shen Chao , Li Zhizun , Ma Yunhe , Sun Liming
Published: August 2019

Underwater wet welding has the characteristics of simple equipment and flexible operation. This paper introduces the basic principle of underwater wet welding, focusing on wet welding by welding materials, welding methods and the influence of water environment.
Virtual Reality Simulation of Equipment Training Based on Unity3D
Authors: Su Xiangyong , Zhang Zhujun , Zhou Zelong , Yu Xin
Published: August 2019

All along, the combination of virtual and real equipment training is an effective means, which can improve training efficiency and solve training contradictions. In this paper, the equipment training virtual reality system is designed by using Unity3D virtual reality design software. This provides an effective solution for equipment training. This paper mainly studies and discusses the structure, key technologies and implementation methods of virtual system.
Analysis of Periodic Solutions for Composite Laminated Circular Cylindrical Shell with 1:2 Internal Resonance
Authors: Tian Yuanyuan , Li Jing , He Bin
Published: August 2019

In this paper, we are concerned with periodic motions of composite laminated circular cylindrical shell with 1:2 internal resonance. The existence condition and number estimation of periodic solutions of the governing system are studied by discussing the Poincaré map and the displacement function. To illustrate the effectiveness of our results, the method of numerical simulations is performed to detect the phase portraits of the periodic solutions under a set of parameter condition.
Solution of the Developed Homogenous &Non-Homogenous Wave Equation Using Mathematica
Authors: Hussain Ahmed Hadi , Al-daem Mohamad Abd , Al-Khfaji Saba Nazar , Abbas Sameer Annon
Published: August 2019

The purpose of this research is to develop the wave equation by replacing the constant with a quadratic function based on the two variables (x, t). Some elementary and boundary conditions using MATHEMATICA.
Soft(1, 2)-Strongly Open Maps in Bi-Topological Spaces
Authors: Jawad Hasan al Musawi Abu Firas Muhamad , Khalil Al Salim Shuker Mahmood , Ulrazaq Mayadah Abd
Published: August 2019

In this paper the concepts of soft (1, 2)-strongly open maps and soft (1, 2)-generality open maps are introduced and their relations with soft (1, 2)-open maps and soft (1, 2)-continuous maps are stated. We show that every soft (1, 2)-strongly open map is soft (1, 2)-generality open map and our work in this paper are examined. Furthermore, these our concepts are used to discuss the notion of soft (1, 2)-semi Hausdorff spaces in this work.
Type-2 fuzzy Continuous Function Between the General type-2 fuzzy Topological spaces
Authors: Mahdy Hussan Mohammed Salih , Khalik Al-Khafaji Munir Abdul
Published: August 2019

The main pillar provided by these papers type-2 fuzzy continuous function between the general type-2 fuzzy topological spaces and when will it be realized after the presented of definition the type-2 fuzzy set with some properties and definition the general type-2 Fuzzy topological space.
The Martingle as an Orthogonal Projection
Authors: Jumaa Suha , Ebrahim H.H.
Published: August 2019

This paper studies martingale as an orthogonal projection. It is proved that martingale achieves infimum relation if and only if it satisfies orthogonality relation. It is also proved that orthogonal martingale in Hilbert space achieves minimum relation. It is observed that martingale differences are orthogonal in Hilbert space and martingale can be represented as the sum of orthogonal difference.
Some Common Random Fixed Points Theorems Of Generalized ϕ – Weakly Contractive Random Operators in Metric Spaces and Random Well-Posed
Authors: Ajeel Yusra Jarallah
Published: August 2019

In this paper, firstly, we prove the existence of random coincidence points for general ϕ – weakly contraction condition under two pairs of random operators in metric spaces X, where ϕ is continuous monotone real function. As applications related common random fixed point results are proved and the well-posed random fixed point problem is studied.
Moduli Space of the Category of Fuzzy Topographic Topological Mappings
Authors: Kadhem Hiyam Hassan , Ahmad Tahir
Published: August 2019

The moduli space has concept emerged to classify objects of certain categories by carrying out their parameterization. In fact, the theory of moduli space has been widely appreciated from a distant time in diverse fields not only of mathematics, but also of physics. This paper is devoted to establish the moduli space of the category of the mathematical model fuzzy topographic topological mappings, which is adopted in solving neuromagnetic inverse problem during a seizure. In this study, the moduli functor of fuzzy topographic topological mapping was constructed. The applicability of the theory of moduli space is uniquely revealed with specifying its sort.
Comparison of four methods to estimate the scale parameter for Extended Poisson Exponential distribution
Authors: Kalt Hazim Ghdhaib , Abd Al-Rahem Mushtaq Kareem
Published: August 2019

In this paper, it was obtained estimators of the scale parameter of Extended Poisson Exponential distribution by four methods using complete data, these methods are the Maximum Likelihood Estimator (MLE), the Least Squares Estimator (LSE), Plotting Position Estimator (PPE) and White Estimator (WE), these four methods have been compared by the criteria of Mean Square Error (MSE) using Monte Carlo simulation, and from the results on the samples in the simulation, the comparison in this study showed that Maximum Likelihood Estimator method is best from other methods followed by the White Estimator method then the Least Squares Estimator method.
Essential-small submodules relative to an arbitrary submodule
Authors: Abbas M. S.
Published: August 2019

Let R be an arbitrary ring and T a submodule of an R-module M. A submodule N is said to be Te-small in M, if for each essential submodule X of M, T ⊆ N + X implies that T ⊆ X. In this work we study this mentioned notion which is a generalization of the essential-small submodules as well as the T-small submodule. We use this notion to investigate T-essential radical of module, also to introduce generalized T-essential Hopfian modules.
Asymptotic behavior criteria for solutions of nonlinear n-th order neutral differential equations
Authors: Mohamad H A , Ketab S N
Published: August 2019

In this paper some necessary and sufficient conditions of n – th order neutral differential equations are obtained to insure the convergence of all nonoscillatory solutions to zero or tends to infinity as t → ∞. Some examples are given to illustrate the main results.
Essentially Small Quasi-Dedekind modules and Anti-hopfian modules
Authors: Hussain Mukdad Qaess , Dahash Angham Abbas , AbdulKareem Darya Jabar
Published: August 2019

In this paper we study the relationship between Essentially Small Quasi-Dedekind modules and anti-hopfian modules. Also, we give some examples which illustrate these relations.
Characteristic Zero Resolution of Weyl Module in the Case of the Partition (8,7,3)
Authors: Hassan Haytham R. , Jasim Niran S.
Published: August 2019

In this paper, we studied the resolution of Weyl module for characteristic zero in the case of partition (8,7,3) by using mapping Cone which enables us to get the results without depended on the resolution of Weyl module for characteristic free for the same partition.
Application of Nanotechnology For Cleaning of Teeth And Shining It
Authors: al Hussein Hassanain jwad abid , Mohammed Hamed Ibrahim
Published: August 2019

This research includes the using of Powder Of Snail Shell’s
Rostellaria
species for cleaning, and remove Staining of Teeth as well as shining it.As an alternative of a Conventional pumice when dentists and technicians’ in dental laboratories. It was powder processing on two types : first, it provides as a small size particles, with added of some rate of florid.it used by dentists, to clean the natural teeth. Second, it provides as a large size particles, it used by owners of dental laboratories, to clean the fixed and mobile sets of teeth. And making it easier for the possibility of the application of this powder as anano powder. they contain of a three-layer cover, resistant to external conditions. That’s making constant hardness powder, it range between (4 – 3), Unlike other types of pumice Available in the market. In addition to the containment of this crust of the fixed elements and chemical compositions such as : ( Cao, Sio2, AL2o3, Fe2o3, Mgo, So3 ), In the proportions : (52.70, 20.40, 0.68, 0.44, 1.5, 0.28 ) respectively.
Study the Effects of Pit-1 polymorphism on some blood Parameters in dairy cow in Karbala governorate
Authors: Zabeel Afrah Kamil , Mohammed Al-Bazil Wefak G. , Muhammed Hayder Ali
Published: August 2019

the aim of this study was to investigate the effect of Pit-1 polymorphism on the some blood parameters in dairy local Iraqi cattle, blood samples were collected from (120) healthy dairy cow breeds aged between (4-6 years), in peak stage (40-120) days of lactation, during period of time beginning from September 2017 till January 2018, in the northeast of rural areas in Karbala province. Amplification Refractory Mutation System (ARMS-PCR) techniques was used to detect Pit-1 polymorphism and to classified the genotyping in to three groups; wild group AA, recessive group BB and heterozygosity group AB.The frequencies of genotypes were recorded as 0.06 for AA, 0.70 for AB and 0.24 for BB on the other handthe frequencies of allele were recorded as 0.41 for Pit-1(A) and 0.59 – Pit-1(B).The current study showed no significant decrease (p, >0.05) in the RBC, Hb&MCHC in AB&BB genotype groups compare with AAgenotype group, also the PCV % was no significant difference in all groups. The conclusion our study showed that not found effects of pit 1 polymorphism on the some blood parameter in dairy cow.
Comparative study of some haematological and biochemical characterizes of camels (Camelus dromedarius) in south region of Iraq
Authors: Alzubaidi Nameer A.K. , AL Hassan Amer K. , Mustafa Fatima k.
Published: August 2019

This study aimed to establishment database and baseline of hemato-biochemicals values of male and female camels in three governorate south Iraq (Basrah, Dhi qar, and Muthana). Forty eight adult male and female dromedary camels (6 males and 10 females for each governorate) aged over 3 years old were used. Peripheral blood samples were collected from the jugular vein during February – April 2018 and then as soon as transported to the laboratory for haematology ( RBC, Hgb, HCT, MCV, MCH, MCHC, ESR, PLT,and total and differential WBC) and biochemical analysis(ALT, AST, Glucose, Creatinine, Urea, and total protein). The results of haematological and biochemical parameters appeared compatible with the previous studies on normal hemato-biochemical values and found significant effect of sex on some haematological parameters of camel especially for RBCs count, Hgb, PCV, MCV, and PLT, and also among the camels of different governorate in south of Iraq for both sexes regarding to haematological parameters especially in Basrah governorate compared with Dhi qar and Muthana. Whereas, no effect were recorded for sex of camels on total and differential leukocytes in all location studied. Rather than significant differences (p<0.05) showed among the governorates in values of total and differential leukocytes for both sexes compared with their counterparts in the other governorates. The serum biochemical study of camels’ revealed no effect for sex on most of biochemical parameters except in some situation for AST activity level and glucose concentration. In contrast, the results revealed significant variation for both sexes compared with their counterparts in other studied governorates especially in AST, ALT, and glucose values. Therefore, the present study concluded that the results compatible with the previous studies and the sex had effect on some blood indices and the hemato-biochemical parameters different in their value depend on location in south region of Iraq.
Histological Effects of Sesamum Indicum Seeds on Mammary Gland tissue in Female white Rats
Authors: Al-Bazii S J , Al-Masoudi F J , Obeid A K
Published: August 2019

This study was conducted to investigate the effects of sesame seed on the growth and development of mammary glands in white females rats during the stages of (virginity, pregnancy and lactating), where the effect of 30% sesame seed on the growth and development of mammary glands was studied for 20 days. Sixty-three female Albino rats were randomly divided into three groups (virgins, pregnant and lactating) 12 rats / for each group, the three main groups were subdivided into secondary groups (control and treatment) with 6 rats / for each group. Then toe parameters were conducted including: Histological and histochemical studies for each group and through these studies the following results were obtained:

Histological specimens stain with hematoxylin and eosin stains revealed that the virgins treated with sesame seeds showed an increase in the number of the lobules filled with large numbers of expansive alveoli compared to the control group. In the pregnant groups, the lobules filled with alveoli were observed in larger numbers and diameters. In the lactation groups, the lobules are more numerous and the alveolus were more expansive and numerous in comparison with the control group.

The histochemical studies of the Periodic Acid Schiff (PAS) stain showed a positive intra-alveolar reaction in the mammary glands tissue for each animal of treated and control groups, except the virginity control group which showed a negative reaction to the stain. Whereas the Trichrome stain, which characterized only the control group of virgins with more density of collagen fibers compared to the rest of the groups which were characterized by a deficiency in the density collagen fiber groups for all stages compared to the control groups.

From the current study it can be concluded that the sesame seeds have an effective effect on the growth and development of mammary gland tissue
Comparative study between silk suture and metallic Staplers in skin wound closure in Rabbits
Authors: Abdulkareem Zainab B. , Naeem Luay A. , Jassim Mohammed M.
Published: August 2019

This research aimed to compared between natural non-absorbable suture (silk) and metallic clips in skin wound closure, the result appeared that the use natural non-absorbable suture (silk) get the best result when closed the wound compared with staples. In view of this prospective study has been undertaken to highlight the outcomes of closure by clips and sutures with respect to speed of closure, cost effectiveness and postoperative wound dehiscence, acceptance of scar. It has been found that the use of silk in surgical wound closure gives faster speed of closure and better results.
Effect of Molecular Interaction Towards Homogenous Diameters for Synthesized MWCNTs from Methanol/Butanol mixture by CVDs
Authors: Nasser Intessar , Tareq Ziad , Habeb Firas
Published: August 2019

Carbon nanotubes with multi-wall (MWCNT’s) with homogenousdiameters were successfully synthesized from (1:1) Methanol/Butanol bychemical vapor deposition (CVD) at 700°C using Fe as a catalyst. Themixture of alcohol includes low ratios of amorphous carbon with high ratiosof carbon atoms which are able to covert for MWCNTs. The product wascharacterized by XRD, Raman spectroscopy, SEM and EDX analysisshows the formation of carbon nanotubes MWCNT’s. The diameter oftubes shows semi-equal value when arrange between 90-105nm and thehomogeneous length reached to more than 8μm. The molecular interactionfor the mixture of C1\C4 alcohol plays an important role towards thereduction and changing the skeleton of the agglomerations for themolecules at vapor phase.
Corrosion Protection of Pure Titanium Implant by Electrochemical Deposition of Hydroxyapatite Post-Anodizing.
Authors: AlMashhadani Haider Abdulkareem , saleh Khulood Abed
Published: August 2019

In this study, a Hydroxyapatite (HA) coating was prepared on a titanium implant by an electrochemical deposition process. The titanium pre-treatment by anodizing in 1.65 mol/L sulfuric acid with (10V) at room temperature. The deposition was all conducted at a constant voltage of 6.0 V, for 1 h at room temperature. The coatings thus prepared were characterized with Fourier transform infrared spectroscopy (FTIR) and thickness of the coated layer.

The electrochemical deposition of HA occurred on the titanium as a cathode. Coated titanium by HA after anodizing revealed a good corrosion protection efficiency even at a temperature ranged (293-323) K in artificial saliva. Activation energy and pre-exponential factor (kinetic parameters) were calculated and discussed. Also, thermodynamic values ΔG and ΔH were calculated and it shows that corrosion reaction was non-spontaneous and exothermic in nature before treatment but after anodizing the corrosion reaction become endothermic.
Kinetic and mechanistic study of alanine oxidation by N-chlorosuccinimide using Mn2+ as catalyst.
Authors: Salman Noori Y. , Ibrahim Al-niami Kisma H.
Published: August 2019

Kinetic studies of oxidation of alanine by N-chlorosuccinimide (NCIS) have been investigated at different pH’s. The reaction shows consecutive first order reaction with respect to both oxidant and substrate. Fractional order were observed in hydrogen ion and manganeseion. Slight effect of addition of reaction product (succinimide) on the rate of oxidation reaction have been noticed. Changing the ionic strength had no effect on the rate of oxidation reaction. Cl+ or NClS and NClS protonated were suggested to be the reactive species of N-chlorosuccinimide. An intermediates compounds have been found and proved by using michaelis menton equation. A reaction mechanism for the oxidation reaction was suggested.
Spectrophotometric Estamation of Meloxicam Using Charge Transfer Complex
Authors: Mahood Abdulbari Mahdi , Najm Nahawnd H.
Published: August 2019

In this study we developed cheap and precise analytic method to measure Meloxicam concentration in bulk and pharmaceutical formula. The method based on the reaction between ferric ion and Meloxicam to yield ferrous ion. Then the former ion Fe2+ reacted coupled with potassium ferric cyanide to forming colored compound has a maximum absorbance at 708 nm. The method was validated by calculating the precision and accuracy. The method follows Beer-Lamber law at a range of (0.1-11) μg/mL with correlation coefficient is 0.9978. Accuracy and precision of the proposed method were estimated and shown average of recoveries between (98.7-99.5 %) with precision represented by RSD% equal to 0.56. We also calculated the detection limit (LOD) and quantitative of limit (LOQ) were 0.0092 μg/mL 0.030 μg/mL respectively The modified suggested method was used to measure Meloxicam in pharmaceutical preparation without additives interference and shows a good agreement with the standard method. Therefore, it can be used for routine works for quality control for estimation of the Meloxicam in bulk and pharmaceutical preparation as tablets.
Preparation of dried children food mixes from locally vegetable sources and estimation of their amino and fatty acids content
Authors: Ali Riyadh Shamki , Hmood Wael chassab , Alsirrag Manal Abdal-wahed
Published: August 2019

The study aims to prepare a complementary infants foods to meet their nutritional needs in this age period, based on local plant crops (rice, cowpea, Mung bean) and the exploitation of the abundance of these raw materials and the cost of producing dried products in the form of powders that can be retrieved with water or milk The local community in terms of providing the provision of food for the child is rich in proteins of high biological value, which contains the child’s essential amino acids as well as contain those foods on the fatty acids of the child at this stage, The results showed, oleic acid content in rice, cowpea and Mung bean was ( 0.220, 0.271,2.567) % respectively while content of linoleic acid in rice, cowpea and Mung bean was( 0.225, 1.651 and 0.894) %, and results showed (0.224, 0.490 and 1.584) %, respectively content of linolenic acid in rice, cowpea and Mung bean, The 10 and 11 mixtures selected after cooking and addings Food fortifiers were higher than the percentage of oleic, linoleic, linolenic acid 10.38%, 7.39% and 7.68%, 1.67%, 2.01% and 2.29%, respectively.
Evaluation of oxidative stress in cigarette smoking peoples before and after the treatment with vitamin c in Holley Kerbala
Authors: Habeeb Zeyad Tareq , Abbas Mohammed Talat , Manhy AlKhaleeli Abdulmutalp. Badr.
Published: August 2019

The purpose of this study was to estimate some biochemical parameters in smoker peoples before and after the treatment with vitamin C. The study carried out in kerbala province from October 2018 to January 2019. Fifty male volunteers participated in this study, the volunteers was smoked twenty cigarrete daily for twenty years. The blood was drawn from smokers before the treatment and after the treatment (two months) with vitamin c. All chemical analysis is measured by medical chemo analyzer instruments. There was a significant increase in Malondialdehyde ( MDA), Aspartate aminotransferase( AST), Alanine aminotransferase (ALT), Alkaline phosphatase (ALP), Total Bilirubin, urea and creatinine and in smoking peoples as compared to non smoker groups, at the same time there was significant decrease in superoxide dismutase (SOD),catalase (CAT) activities in smoking groups as compared to control group, however after treatment the smokers with vitamin C the biochemical changes return near to normal values. We concluded the Cigar rete has adverse effects on liver and kidney and increase the oxidative stress in humans, vitamin c decrease the oxidative stress in smoker persons due to have the potent antioxidant effect.
The effect of Al doping on the sensitivity of SnO2 films prepared by chemical spray pyrolysis
Authors: Resne Adeebh L. , Tariq Zaynab
Published: August 2019

In this paper discussed the optical properties of undoped Al (each 3, 5 and 7%) doped SnO2 thin films were synthesized by spray pyrolysis on glass substrate. The samples characterized using X-ray diffraction (XRD) and gas sensitivity. The XRD analysis reveals that the Al dopants substituted into rutile SnO2 nanostructure without forming any secondary phase. The average particle size of the samples was increasing with increasing Al concentration. From XRD and AFM micrograph it was confirmed, the crystallite size in the range of 22.4-34.4 nm. The study reveals polycrystalline structure with prominent peaks. In particular, 7% Al-SnO2 films have a higher sensitivity (30%).