A Predicting Method of the Strong Cooling Process during Winter with Numerical Model Prediction and its Operational Application by Bomin CHEN, Kun ZHOU, Fei XIN, jun MA, Limei JIN

“…At first this paper quantitatively evaluated the low-frequency wave performance of NCEP-CF Sv2 model over the eight key areas on 700 hPa from January to March and from October to December of 2017， and then made operationally the fifteen extended-range operational predictions of strong cooling process for January to April of 2018 and for November to January 2019 with the 1~30 days prediction given by CFSv2 model as well as the low-frequency wave conceptual predicting model.The results show that the phase and evolution trend of the low-frequency wave in the key area predicted by CFSv2 model are highly consistent with the reality， with the correlation coefficients of 0.839 of the predicted low-frequency waves with the observed for the extended-range （11~30 days）， the accuracy of low frequency wave trend by the model over 3~6 pentad up to percent of 83.3 on average， and the percentage of 100-percent accuracy of the trend even up to 45.8.The average accuracy， Cs and Zs scores of 15 strong cooling process operational predicting are 61.2%， 0.149 and 0.158 respectively， and at the same time the occurrence of the two strongest cooling processes at the beginning and the end of 2018 were accurately given with the lead-time of 18 and 16 days in turn， which are significantly higher than those of the operation predicting for the same period of 2015 to 2017 without CFSv2 results.…”
Get full text

Time series analysis of ex-vivo ischemia-reperfused heart using Q-space imaging by Genki Ichihara, Junichi Hata, Daisuke Nakashima, Kyohei Daigo, Kazuhisa Sugai, Yuji Iwasawa, Motoaki Sano, Masaya Nakamura, Hideyuki Okano, Kazuki Sato, Yoshinori Katsumata

“…QSI was performed with gadolinium-enhanced T1-weighted imaging (T1WI) for comparative assessment. Correlation coefficients among images were computed at each level of the left ventricular short-axis cross-section to juxtapose the infarct dimensions and morphology. …”
Get full text

The effectiveness of schema-based education (the area of ​​selfmanagement and impaired or damaged performance) on academic self-efficacy and achievement motivation female students... by zohreh fotuhi, Hasan Asadzadeh, Ismail Sadipour, Fariborz Dortaj, Soghra Ebrahimighavam

“…The training package, based on schema, was developed by the researcher and had content and face validity, qualitatively and quantitatively determined by a panel of 10 experts with two validity coefficients: Content Validity Ratio (CVR) and Content Validity Index (CVI). …”
Get full text

Interlayer engineering of lattice dynamics and elastic constants of 2D layered nanomaterials under pressure by Guoshuai Du, Lili Zhao, Shuchang Li, Jing Huang, Susu Fang, Wuxiao Han, Jiayin Li, Yubing Du, Jiaxin Ming, Tiansong Zhang, Jun Zhang, Jun Kang, Xiaoyan Li, Weigao Xu, Yabin Chen

“…The diatomic chain model is combined with Raman data to analyze the intralayer and interlayer shear force constants and their pressure coefficients, revealing a strong dependence on the number of layers. …”
Get full text

Evaluation of Ecological Carrying Capacity in Qinghai Province Based on DPSIR-TOPSIS Model by Li Xiaoyong, Jia Haifa, Zhao Wanmei

“…[Objective] The ecological carrying capacity of Qinghai Province and its cities and prefectures were quantitatively measured to reveal its spatial and temporal evolution characteristics, in order to provide a reference for the sustainable development of Qinghai Province. …”
Get full text

Determination of Multiple Free Nucleotides in Meat Products by High Performance Liquid Chromatography by JI Xiaomeng, WANG Zhen, REN Nan, LIU Mengyao, KONG Weiheng, ZHAO Wentao, WANG Jiangyue, LIU Xinyi, GUO Wenping

“…The results showed that the five nucleosides had a good linear relationship within the concentration range of 0.5–80 μg/mL, with correlation coefficients greater than 0.999. The limit of detection (LOD) was 5.0 mg/kg, the limit of quantitation (LOQ) was 15.0 mg/kg. …”
Get full text

A Financial Stability Model for Iraqi Companies by Narjis Abdlkareem Ibrahim, Mahdi Salehi, Hussen Amran Naji Al-Refiay, Mahmoud Lari Dashtbayaz

“…Therefore, the present research is one of the first studies in this respect, which presents a model both qualitatively (by designing a questionnaire and conceptual model) and quantitatively (through a mathematical model) to measure financial stability that can help the development of science and knowledge in this field.…”
Get full text

Exact theory of the finite-temperature spectral function of Fermi polarons with multiple particle-hole excitations: diagrammatic theory versus Chevy ansatz by Hui Hu, Jia Wang, Xia-Ji Liu

“…We show that the inclusion of two-particle-hole excitations quantitatively improve the predictions on the polaron spectral function. …”
Get full text

Method Validation and Measurement Uncertainty Estimation for Determination of Multiclass Pesticide Residues in Tomato by Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS) by Suraj Shrestha, Bandana Lamichhane, Nibedita Chaudhary

“…This study aimed to optimize and validate a fast, reliable, and accurate method for quantitatively determining pesticide residues of diverse chemical classes in the tomato matrix. …”
Get full text

Gravitational Lensing of Acoustic Charged Black Holes by Niyaz Uddin Molla, Ujjal Debnath

“…For this purpose, we first numerically obtain the deflection limit coefficients and deflection angle in the strong field limit. …”
Get full text

Random shear resistance of a headed-stud connector in composite steel-concrete beam by Tomasz Domański, Mariusz Maślak

“…The dependence of such value on the mutual relationship between the coefficients determining the statistical variability of the strength of the connector steel as well as the strength of the concrete from which the floor slab was made is also demonstrated. …”
Get full text

Econometric Analysis of the Effectiveness of Government Incentive Measures for the Development of the Region by I. V. Tregub, M. Iaco

“…The article developed an econometric model in the form of a system of interconnected econometric equations, the coefficients of which were estimated in the Gretl package of applied econometric programs. …”
Get full text

Determination, Mobility and Risk Assessment of Pesticides in Ginseng Wine Using Dispersive Liquid–Liquid Micro Extraction Combined with GC-MS/MS and LC-MS/MS by Xuanwei Xu, Dan Zhao, Min Zhang, Xinxin Meng, Ying Chen, Xu Leng, Shuang Liang, Yueru Li

“…The limits of detection (LOD) and limits of quantitation (LOQ) were within the ranges of 0.14–140 and 0.5–470 ng L⁻¹, respectively. …”
Get full text

Greens assessment of RP-UPLC method for estimating Triamcinolone Acetonide and its degraded products compared to Box-Behnken and Six Sigma designs by Hossam M. Nassef, Hoda A. Ahmed, Mohamed A. El-Atawy, Tahani Y. A. Alanazi, Mahmoud A. Mohamed

“…A newly validated RP-UPLC method was then employed quantitatively to detect Triamcinolone Acetonide (TRA) in a creamy pharmaceutical formulation using UPLC BEH C18 (50 × 2.1 mm, 1.7μm) column for analysis, with a detection wavelength set at 240 nm. …”
Get full text

Determination of Multiple Fluorescent Brighteners in Human Plasma Using Captiva EMR-Lipid Clean-Up and LC-MS/MS Analysis by Yubing Yan, Bowen Liang, Jiawen Yang, Qing Deng, Xiaoying Liang, Hui Chen, Bibai Du, Lixi Zeng

“…The results showed that all 13 FBs exhibited good linearity within their respective ranges, with correlation coefficients (R²) greater than 0.992. The method quantitation limits (MQLs) of the FBs ranged from 0.012 to 0.348 ng/mL, and the spiked recovery rates ranged from 61% to 98%. …”
Get full text

Efficient Concurrent Analysis of Mesotrione, Atrazine, Benoxacor and S-Metolachlor in Herbicide Formulate: Developing and Validating a Reversed-Phased HPLC Method by Anum Hafeez, Sajid Iqbal, Iffat Abdul Tawab Khan, Qurrat-ul-Ain

“…The regression coefficients from calibration curves were ˃ 0.998 for all studied pesticides. …”
Get full text

Rapid Screening of 300 Pesticide Residues in Commercially Available Vegetable-, Fruit-, and Cereal-Based Baby Foods by Using Amino-Functionalized Multiwalled Carbon Nanotubes with... by Zhijuan Meng, Sufang Fan, Tongtong Ding, Xiaoxuan Yuan, Limin Zhao, Qiang Li, Yan Zhang

“…Qualitative analysis was carried out by retention time and accurate mass measurements in full scan mode, and external standard method for quantitation was performed using matrix-matched standard calibration, which could effectively eliminate matrix interference. …”
Get full text

Simultaneous determination of 7 pyrrolizidine alkaloids and their nitrogen oxides in herbal tea by SPE-UPLC-MS/MS by WU Zhongling, HE Zhongqiang, HUANG Zhining, SU Ruifen, CHEN Liting, ZHONG Junwei

“…The limits of detection (LOD) and limits of quantitation (LOQ) were 0.3 μg/kg and 1.0 μg/kg, respectively. …”
Get full text

Water Body Extraction Methods for SAR Images Fusing Sentinel-1 Dual-Polarized Water Index and Random Forest by Min Zhai, Huayu Shen, Qihang Cao, Xuanhao Ding, Mingzhen Xin

“…Taking the normalized difference water body index extraction results obtained via Sentinel-2 optical images as a reference, the accuracy of different water body extraction methods when used with SAR images was quantitatively evaluated. The experimental results show that, compared with the dual-polarized water body index and the random forest method, the fusion method, on average, increased overall water body extraction accuracy and Kappa coefficients by 3.9% and 8.2%, respectively, in the Dalu Lake experimental area; by 1.8% and 3.5%, respectively, in the Yinfu Reservoir experimental area; and by 4.1% and 8.1%, respectively, in the Huashan Reservoir experimental area. …”
Get full text

Exploring lake ecological water levels via the Lake Ecological Comprehensive Evaluation Index (LECEI) approach in conjunction with terrestrial and aquatic environments by Weifeng Yue, Changming Cao, Qingqing Fang, Guoqiang Wang, Ziyi Zan, Kun Wang, Tingxi Liu

“…This study revealed correlation coefficients between the LECEI and water levels ranging from 0.77 to 0.79 for Wuliangsuhai Lake from 1990 to 2017. …”
Get full text