Gear Surface Design and Contact Analysis of Cycloid Bevel Gear based on Deviation Tooth Surface by Yang Jianjun, Chen Penghui, Nie Shaowu, Zhang Hua, Xu Kai

“…The simulation results show that bias correction is better than the others considering the flank contact stress,root tensile stress and contact pattern. The proposed modification method provides design reference for precision forging of the cycloid bevel gear.…”
Get full text

Application of Machine Learning to Statistical Evaluation of Artificial Rainfall Enhancement by Li Dan, Lin Wen, Liu Qun, Feng Hongfang, Hu Shuping, Wang Zhihai

“…Each statistical model is greatly improved after six root square transformations of rainfall data. The performance of the model established by CNN method is relatively optimal, with determination coefficient R2 up to 0.658 and RMSE only 0.2 mm1/2, followed by SVM statistical model based on sixth-order root square transform data, with R2 being 0.41 and RMSE being 0.203 mm1/2. …”
Get full text

Cloning and expression analysis of sugar transporter protein gene MeSWEET17b in cassava by XUE Jingjing1,2, WEI Zhuowen1, LUO Xiuqin1, AN Feifei1,2*

“…The relative expressions of MeSWEET17b in leaf and fibrous root changed most significantly under salt stress; under oxidation and cold stress, the relative expressions of MeSWEET17b in fibrous root and petiole increased significantly with the extention of treating time. …”
Get full text

Validation of an instrument to measure the perception of occupational safety and health among Peruvian dentists by Marysela Ladera-Castañeda, José Escobedo-Dios, Alberto Cornejo-Pinto, Jenny Cieza-Becerra, Miriam Castro-Rojas, Carlos López-Gurreonero, César Cayo-Rojas

“…Regarding the AFC, adequate fit indices were evidenced: Chi-square (χ2) = 321.071, degrees of freedom (df) = 206, χ2/df = 1.559 (p < 0.001), standardized root mean square residual (SRMR) = 0.047, comparative fit index (CFI) = 0.974, Tucker and Lewis index (TLI) = 0.963, weighted root mean square residual (WRMR) = 0.045 and root mean square error of approximation (RMSEA) = 0.038. …”
Get full text

Screening of powdery mildew resistant barley accessions from Ethiopia for tolerance to abiotic stressors by R. A. Abdullaev, O. V. Yakovleva, I. A. Kosareva, E. E. Radchenko, B. A. Batasheva

“…In the study of salt tolerance, a ‘roll-based’ assessment technique was used, which takes into account the inhibition of root growth under salt (NaCl) stress conditions, compared with the reference conditions without salinization. …”
Get full text

Effects of karst environmental stresses on seed germination and seedling growth of alfalfa (Medicago sativa L.) by Zijun Zhou, Junqin Li, Yuting Yang, Yang Gao, Xiangtao Wang, Haiyan Huang, Rui Wang, Puchang Wang, Lili Zhao

“…This study provides a theoretical reference for selecting plants suitable for cultivation in karst environments.…”
Get full text

Rapid Identification of <i>Vicatia thibetica</i> de Boiss and Quantitative Analysis of the Content of Six Chemical Components Based on Near-Infrared Spectroscopy by Yunta Zhang, Jian Li, Jin Sun, Tian Xia, Yonglin Hai, Jian Li, Yongcheng Yang, Conglong Xia

“…The correlation coefficients of the final quantitative model for the contents of the six components in <i>V. thibetica</i> were between 0.7852 and 0.9538, the root mean square error of calibration (RMSEC) was between 0.0027 and 0.2530, and the root mean square error of prediction (RMSEP) was between 0.0031 and 0.4240. …”
Get full text

Design and experiment of light angle adjustable device for measuring sugar content of citrus by near infrared spectroscopy by ZENG Xianming, HAN Longbo, WEN Tao, DAI Xingyong

“…At this time, the correlation coefficient of the prediction set, the root mean square error of the prediction set, the correlation coefficient of the correction set, and the root mean square error of the correction set were 0.887 6, 0.897 5, 0.456 0, 0.430 9 °Brix, respectively. …”
Get full text

Finite element study of the efficacy of three different loops for bodily protraction of the mandibular molar by Aditi Mehta, Alap Shah, Anisha Prasad, Bharvi Jani, Kinnari Shah, Anirudh Kulkarni, Nattapon Chantarapanich, Samroeng Inglam, Mohammad Fareed, Anand Marya

“…Displacement of the molar was measured at four reference points: the mesio-buccal cusp, distobuccal cusp, mesial root, and the distal root of the first molar. …”
Get full text

Research on the Electric Field Distribution and Structure Optimizing  of Integral Prefabricated Joint and Taped Joint by CHEN Zhen-xin, YU En-ke, WANG Yang, ZHOU Ze-wei, DUAN Ran, QUE Shan-ting, LE Yan-jie, CHEN Guo-zhi

“…Integral prefabricated joint and taped joint are two kinds of widely used cable joint.Because of the different structure and conductivity of insulation, there is great difference in the electric field distribution between the two kinds of joints .In this paper, 50.kV crosslinked polyethylene high voltage dc cable joint is selected as the research object, models of Integral Prefabricated Joint (silicone rubber insulated) and taped joint (oil impregnated paper insulated) was established and the electric field distribution in the joints was analyzed by comsol software.It is found that the electric field at the root of stress cone reached 45.kV/mm for Integral Prefabricated Joint‎The electric field at the root of stress cone was nearly 0.kV/mm for taped joint but the electric field at the top of reversed stress cone reached 30.kV/mm.By optimizing the structure of the taped joint, the maximum electric field is reduced to 7.kV/mm.By using Teflon as the taped insulation which can reduce the maximum electric field to 3.kV/mm.The research is a reference in the HVDC cable joints design…”
Get full text

Low-Cost Air Quality Sensors: Biases, Corrections and Challenges in Their Comparability by Idris Hayward, Nicholas A. Martin, Valerio Ferracci, Mohsen Kazemimanesh, Prashant Kumar

“…Low-cost air quality sensors are a promising supplement to current reference methods for air quality monitoring but can suffer from issues that affect their measurement quality. …”
Get full text

The Path of Systematic Improvement of the Rules for Ships Under Construction in Maritime Law of the People's Republic of China by CAO Xingguo, SUN Ninglu

“…Through the analysis of the theoretical basis, comparative reference and demarcation standards, the phased application approach can be deployed to solve the disputes concerning ships under construction. …”
Get full text

Will decarbonising buildings be enough? Constrain and redistribute growth in floor area by David Ness

“…Shifting our frame of reference enables us to view this as the root cause of not only climate change, but also the destruction of biodiversity and increased global inequity. …”
Get full text

An Interpolated Flying-Adder-Based Frequency Synthesizer by Pao-Lung Chen, Chun-Chien Tsai

“…The architecture of an interpolated FA, which uses an interpolated multiplexer (MUX) to replace the multiplexer in conventional flying adder, improves the cycle-to-cycle jitter and root-mean-square (RMS) jitter performance. A multiphase all-digital phase-locked loop (ADPLL) provides steady reference signals for the interpolated flying adder. …”
Get full text

Bearing remaining useful life prediction based on optimized VMD and BiLSTM-CBAM. by Wei Liu, Sen Liu

“…This study not only ensures the safe operation of rotating machinery but also provides a valuable reference for RUL prediction of other types of equipment.…”
Get full text

Engagements islamiques en Jordanie. La part du politique, la part féministe by Stéphanie Latte Abdallah

“…In the 1980s an Islamic feminist movement took root in the shadow of Jordanian women's institutions linked to the State. …”
Get full text

Structure design and field test of vibration swing type seedling lifting and soil cleaning machine by HUO Peng, LI Jianping, YANG Xin, XU Shucai, FAN Xiaowen

“…The results showed that the main root length of the seedlings was between 120 mm and 150 mm, and the injury rate of the seedlings was low, which met the requirements of agronomy. …”
Get full text

Influence of the print orientation and cast thickness on the accuracy of DLP master casts for fixed dental prostheses by Ignacio García-Gil, Verónica Rodríguez Alonso, Carlos López Suárez, Seyed Ali Mosaddad, Jesús Peláez, María J Suárez

“…Discrepancies between the reference STL and the experimental STL of the printed cast were measured by using the root mean square (RMS) error. …”
Get full text

Spatial Interpolation Methods of Temperature Data Based on Geographic Information System—Taking Jiangxi Province as an Example by Zihao Feng, Runjie Wang, Xianglei Liu, Ming Huang, Liang Huo

“…In conclusion, this study provides a reference for the study of temperature comfort in Jiangxi Province.…”
Get full text

Improved Estimation Procedure of Cage-Induction-Motor-Equivalent Circuit Parameters Based on Two-Stage PSO Algorithm by Jovan Vukašinović, Saša Štatkić, Nebojša Arsić, Nebojša Mitrović, Bojan Perović, Andrijana Jovanović

“…The proposed method accounts for variations in rotor parameters based on both linear and square root speed approximations, as well as two different approaches for the stator and rotor leakage reactance ratios. …”
Get full text