Potential of 10 types of eucalyptus clones in the concession area PT TPL TBK Simalungun Indonesia by Benteng H Sihombing

“…The main objective of the study was to determine the relationship between the number of trees and the average diameter, average branch-free height and average volume of 10 IND clones currently cultivated. in the plantation forest area of PT Toba Pulp Lestari Tbk and compared the volume of wood from 10 IND clones and determined the 3 candidate species recommended for cultivation in the next period. …”
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Precast-Monolithic Reinforced Concrete Large-Span Shells of Unique Buildings from Enlarged Elements by N. S. Razzakov

“…The studies were carried out on full-scale composite shells 48x48 m and diameter 96m, its enlarged elements 3x18m and 3x24m as well as on the shell model on a scale of 1:10 and 1: 4. …”
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Research of the Linkage Point Trajectory Curvature and Design of the Related Mechanism by Wang Yundi, Wang Shuai, Wang Liangwen, Zhang Hao

“…The undecided parameters method and auxiliary vertical line method for determining diameter and direction of the inflection circle in the four bar mechanism are elaborating out. …”
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Development of Biodegradable Delivery Systems Containing Novel 1,2,4-Trioxolane Based on Bacterial Polyhydroxyalkanoates by Sergei Y. Lipaikin, Ivan A. Yaremenko, Alexander O. Terent’ev, Tatiana G. Volova, Ekaterina I. Shishatskaya

“…Main systems’ characteristics were investigated: the particle yield, average diameter, zeta potential, surface morphology, loading capacity, and drug release profile of microparticles, as well as surface morphology and release profiles of OZ-containing films. …”
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Synthesis and Characterization of CeGdZn-Ferrite Nanoparticles as Magnetic Hyperthermia Application Agents by Saleh S. Hayek

“…It was then fitted by a Gaussian distribution with mean diameter dm ±1.0 nm. The investigation of magnetic properties showed that adjusting, Gd and Zn contributes to the nanoparticles added to the adjustment of all magnetic properties of CeGdZnFe.…”
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An Investigation of Palladium Oxygen Reduction Catalysts for the Direct Methanol Fuel Cell by G. F. Álvarez, M. Mamlouk, K. Scott

“…The resulting catalyst, Pd/C, with metal nanoparticles of approximately 6 nm diameter, was tested as a cathode catalyst in DMFC. …”
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Bandwidth Behavior of Closely Spaced Aperture-Coupled Reflectarrays by F. Venneri, S. Costanzo, G. Di Massa

“…A 20 GHz aperture-coupled element is synthesized for the design of a 12𝜆 diameter reflectarray, showing a simulated 1 dB gain bandwidth of 23%.…”
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Study on Soil Spring Model for Pipe and Silty Clay Interaction Based on Physical Model Test by Liyun Li, Junyan Han, Xiangjian Wang

“…The effects of soil properties, pipe diameter, and embedment depth on the horizontal resistance of soil are studied. …”
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Experimental Study on Mechanical Properties of Fiber Recycled Concrete by GUAN Xiaodi, MA Di, WEI Huanhuan, KANG Jiawei, LEI Tianqi

“…In this paper,the influence of fiber types on the mechanical properties of recycled concrete materials is analyzed by controlling the fiber types in recycled concrete materials.Then,the influence of the diameter,length,and mass ratio of polypropylene fibers on the properties of recycled concrete materials is investigated by the design method of orthogonal tests.The results reveal that both plant fibers and straight polypropylene fibers could inhibit the damage to recycled concrete,while curved polypropylene fibers could not.The peak strength and deformation modulus of recycled concrete can be enhanced by plant fibers and straight polypropylene fibers,but with the increase in curing time,the strengthening effect of plant fibers decreases.At the same time,the mass ratio of polypropylene fibers has a significant impact on compressive strength and tensile strength,and the length of polypropylene fibers greatly affects tensile strength,which indicates that the mass ratio and length of fibers are important factors affecting the strength of recycled concrete materials.…”
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Research and Practice of Surveying and Mapping for Failed Large Modulus Cylindrical Gear by Ben Daochun

“…According to tooth root diameter,modulus,tooth number and helix angle,the modification coefficient is calculated finally. …”
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STIMULASI HASIL MELON ( Cucumis melo, L) DENGAN MENGGUNAKAN BIOTO GROW GOLD (BGG) by SAHINDAH ARITONANG, SURTINAH SURTINAH

“…The results showed that BGG treatment had the significant effect on leaf length, leaf width, stem diameter, flowering age, fruit circumference, fruit weight, a thickness of flesh and sugar content of melon fruit. …”
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Conservative Medical Management of a Tracheal Perforation after Blunt Trauma in a Patient with SARS-CoV-2 by Mateo Zuluaga-Gómez, Daniel González-Arroyave, Carlos M. Ardila

“…The tomography revealed an anterior and proximal tracheal lesion, a 2-mm solution of continuity of the anterior infraglottic airway in the proximal third with subcutaneous emphysema and a decrease in the diameter of the airway at the level of the glottis. …”
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OPTIMIZATION DESIGN OF TOWER STRUCTURE OF LARGE WIND TURBINE by SHI Hong, XIA ZhiPing, FENG MeiLong, LIU XiaoHong

“…The 2 MW wind turbine tower structure optimization was researched,with the tower quality was taken as the optimization objective,the natural frequency,stress and height was taken as the constraint conditions,and the diameter,wall thickness,pitch length was taken as control variables. …”
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FATIGUE TEST AND CRACK PROPAGATION SIMULATION OF THE SMALL WELDED PIPE by CHEN MingYa, ZHOU Shuai, WANG Jun, LIN Lei, ZUO DunGui, GAO HongBo, LIU YinLi, YU WeiWei

“…In the engineering of aerospace and nuclear power engineering, the safety and reliability of small pipe（Outer diameter less than 2-inch, about 50 mm） has become one of the main factors restricting the safe operation. …”
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RESEARCH ON RADIAL FAILURE CRITERION AND LIMIT SPEED FOR CIRCLIPS by WANG ShengBin, WANG ChunXian, WU Zhe, YE JunHui, LI HaiJiu

“…By analyzing the centrifugal force distribution of unequal diameter circlips, simulating and testing the initial contact between circlip and shaft, the results show that the maximum centrifugal force occurs in the thickest position of the circlip, the contact state can be simplified to be three point contact, then proposing the detaching point assumption and the radial failure criterion. …”
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Growth and Switching of Ferroelectric Nanocrystals from Ultrathin Film of Copolymer of Vinylidene Fluoride and Trifluoroethylene by R. Gaynutdinov, V. Fridkin, H. Kliem

“…The self-assembly leads to the growth of nanocrystals of ferroelectric copolymer 15–25 nm thick and 100–200 nm in diameter. The nanocrystals presumably belong to orthorhombic space group, where axis 2 is the direction of spontaneous polarization (and normal to substrate). …”
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RESEARCH AND VERIFICATION OF CONTACT STRESS CALCULATION METHOD FOR FIVE-BALL FATIGUE TESTING MACHINE by JIAO Yan, YU QingJie, HAN Song, LIU JinLing, ZHAO SiYang

“…For the actual size of the 9. 525 mm diameter steel ball tooling,the contact stress comparative analysis is calculated by the numerical algorithm and finite element method respectively. …”
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Calculation and Optimal Design of Rotor Shaft Torsional Vibration of a Helicopter Transmission System by De Ni, Tuanjie Zhong, Jing Wei, Miaofei Cao, Bin Peng

“…In order to improve the safety margin of torsional vibration of the rotor shaft system of a coaxial counter-rotating double-rotor transmission system，under the premise of considering the lightweight design，by changing the shaft section diameter size or changing the excitation frequency makes the natural frequency of torsional vibration stagger with the excitation frequency，so as to avoid resonance and realize the optimized design of shafting torsional vibration frequency modulation. …”
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A New 3D Coordination Polymer of Bismuth with Nicotinic Acid N-Oxide by Farzin Marandi, Ingo Pantenburg, Gerd Meyer

“…The crystal structure consists of a rectangular-shaped grid constructed with NNO linkers. Cavities of a diameter of 7.9–8.3 Å2 are filled with disordered water molecules. …”
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Numerical Prediction of Flow and Heat Transfer in a Two-pass Square Channel with 90° Ribs by Yong-Jun Jang, Hamn-Ching Chen, Je-Chin Han

“…The rib height-to-hydraulic diameter ratio (e/Dh) is 0.125 and the rib pitch-to-height ratio (P/e) is 10. …”
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