Stability Analysis of a Breathing Cracked Rotor with Imposed Mass Eccentricity by Huichun Peng, Qing He, Yaxin Zhen

“…The investigation of the effects of mass eccentricity on stability of a gravity dominated cracked Jeffcott rotor would generally provide practical applicability to crack detection and instability control of the heavy loading turbo-machinery system. …”
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Maintaining Specific Natural Frequency of Damped System despite Mass Modification by Rui Zhu, Qingguo Fei, Dong Jiang, Zhifu Cao

“…The methods are both implemented by installing a spring on the system and can eliminate the effect of the additional mass on the specific frequency. The proposed methods were verified to be effective and accurate through numerical simulations. …”
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Marsh Sedimentation Controls Delta Top Morphology, Slope, and Mass Balance by K. M. Sanks, S. M. Zapp, J. R. Silvestre, J. B. Shaw, R. Dutt, K. M. Straub

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Mass gatherings in Italy: a study from the 2015 Milan Expo by Pietro Marino, Enzo Albergoni, Aida Andreassi, Gianluca Chiodini, Lucia Colombi, Cristina Corbetta, Gabriella Nucera, Marco Salmoiraghi, Alberto Zoli

Subjects: “…public health; mass gatherings; 2015 World Exposition; disaster planning; health care systems.…”
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Emerging antihelminthic drug resistance: Implications for mass drug administration program by Agarwal Harshita, Rajkumari Nonika

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Analysis of Collective Behavior and the Psychology of the Masses. Case: October–2019, Ecuador by M. Espín, L. Vallejo, M. Gavilanez

“… In this research, an analysis was performed of collective behavior and its relationship with the psychology of the masses. The objective was to explain the collective behavior of the masses following the events of October 2, 2019 in Ecuador. …”
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Mass Estimation-Based Path Tracking Control for Autonomous Commercial Vehicles by Zhihong Wang, Jiefeng Zhong, Jie Hu, Zhiling Zhang, Wenlong Zhao

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Intraoperative Tracheal Obstruction Management among Patients with Anterior Mediastinal Masses by H. Kafrouni, Joelle Saroufim, Myriam Abdel Massih

“…This report discusses a 30-year-old asymptomatic Caucasian female who faced recurrent distal airway collapse during mediastinoscopy for biopsy of an anterior mediastinal mass, which led to the inability to extubate her. …”
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Factors Leading To Early Versus Late Presentation In Patients With Neck Masses by Ansa Umara Akram, Sadia Chaudhry, Nighat Qamar, Amna Kausar, Amna Javaid, Adia Bushra Piracha

Subjects: “…Neck masses…”
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Planetary Sciences, Geodynamics, Impacts, Mass Extinctions, and Evolution: Developments and Interconnections by Jaime Urrutia-Fucugauchi, Ligia Pérez-Cruz

“…Here we review the emerging interconnections resulting from advances in planetary sciences, geodynamics, high pressure-temperature physics, meteorite impacts, and mass extinctions.…”
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A Urachal Cyst Case with Painful Mass Locates at Ileal Mesentery by Selahattin Koray Okur, Hüseyin Pülat, Oktay Karaköse, Ismail Zihni, Kazım Çağlar Özçelik, Hasan Erol Eroğlu

“…In this paper, we report a case of a 17-year-old female presenting with painful abdominal mass. At the first evaluation, the case was diagnosed as a mesenteric cyst because the mass located in the mesentery, and final histopathological report revealed the urachal cyst.…”
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Analysis of Mining Crack Evolution in Deep Floor Rock Mass with Fault by Juntao Chen, Yi Zhang, Kai Ma, Daozeng Tang, Hao Li, Chengxiang Zhang

“…To further explore the crack evolution of floor rock mass, the mechanism of fault activation, and water inrush, this paper analyzes the crack initiation and propagation mechanism of floor rock mass and obtains the initiation criteria of shear cracks, layered cracks, and vertical tension cracks. …”
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Lidar estimates of birch pollen number, mass, and CCN-related concentrations by M. Filioglou, P. Tiitta, P. Tiitta, X. Shang, A. Leskinen, P. Ahola, S. Pätsi, A. Saarto, V. Vakkari, V. Vakkari, U. Isopahkala, M. Komppula

“…<p>The accurate representation of microphysical properties of atmospheric aerosol particles – such as the number, mass, and cloud condensation nuclei (CCN) concentration – is key to constraining climate forcing estimations and improving weather and air quality forecasts. …”
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SOME PECULIAR FEATURES IN SHRINKAGE OF CLAY MASS DURING DRYING PROCESS by I. K. Ivanovsky, S. N. Osipov, L. V. Rafeenkova

“…The paper contains results of correlation and stochastic analysis for regularities in shrinkage of the Lukoml clay and molding mass prepared on its base, and also the Gloukhov and Gloukhovetsky kaolin and their mixtures.It has been revealed that an exponent is the most convenient approximation form of the shrinkage characteristic for the Lukoml clay and molding mass prepared on its base within significant range of moisture changes.After products’ molding in a vacuum press a linear dependence is considered as the most convenient type of approximation within the range of moisture changes and with the main shrinkage.…”
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Non-holomorphic modular A 5 symmetry for lepton masses and mixing by Cai-Chang Li, Jun-Nan Lu, Gui-Jun Ding

“…Abstract We perform a comprehensive bottom-up study of all the simplest lepton models based on non-holomorphic A 5 modular flavor symmetry, in which neutrinos are assumed to be Majorana particles and their masses are generated by the Weinberg operator or the type I seesaw mechanism. …”
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Mechanical Properties of the Shear Failure of Rock Masses with Prefabricated Sinusoidal Fractures by Limei Tian, Hongzhou Zhang, Wei Hong, Yunxia Zhang, Jinghua Zhang, Wenhui Tan

“…Before peak strength, the sinusoidal prefabricated-fracture rock masses with different undulated heights have the precursory characteristics of decreased stress, which can provide an early warning for the instability and failure of rock masses. …”
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Damping Effects Induced by a Mass Moving along a Pendulum by E. Gandino, S. Marchesiello, A. Bellino, A. Fasana, L. Garibaldi

“…Time-varying inertia due to the relative motion of the mass is associated with the Coriolis-type effects appearing in the system, which can reduce and also amplify the oscillations. …”
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Galactocele in the Axillary Accessory Breast Mimicking Suspicious Solid Mass on Ultrasound by Donya Farrokh, Ali Alamdaran, Farhad Yousefi, Bita Abbasi

“…Ultrasound examination revealed a hypoechoic mass with heterogeneous echogenicity and irregular shape and margins. …”
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πe3 Form Factor f- Near the Mass Shell by M. I. Krivoruchenko

“…We calculate the near-mass-shell f- using the gWTI and dispersion techniques. …”
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Mass Laplacian Discriminant Analysis and Its Application in Gear Fault Diagnosis by Guangbin Wang, Ying Lv, Tengqiang Wang, Xiaohui Wang, Huanke Cheng

“…Firstly, it is assumed that each data point in the space is a point with mass, and the mass is defined as the number of data points in a certain area. …”
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