ANALYSIS OF SHEARER VERTICAL DIRECTION VIBRATION CHARACTERISTICS UNDER DIFFERENT HAULAGE SPEED by MAO Jun, YANG XinWei, CHEN HongYue, SONG QiuShuang

“…According to shearer vibration problems in the practical work,using multi-body dynamics theory,considering the connection characteristics between walking unit of shearer and scraper conveyor,the support characteristics of adjustment height oil vat,the stiffness of rocker arm of shearer,the connection characteristics between the parts of shearer,vibration angle of shearer,6 degrees of freedom dynamic model in the vertical direction of shearer was established.The vertical direction of shearer drum load was used as an external excitation,and the effect of different haulage speed on vertical direction vibration characteristics of shearer were solved by using numerical analysis method.The results show that the haulage speed has great influence on vibration displacement of front and rear cutting unit when the range is 2 m/min～5 m/min,the displacement range of front and rear drum is 12.3325 mm～38.9104 mm、7.5240 mm～23.7396 mm,and the displacement range of front and rear rocker arm is 4.8826 mm～15.4052 mm、3.0548 mm～9.6384 mm.Finally,the results of model is verified by experiment.…”
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Direct Numerical Simulations of Sedimentation and Lift- off of Rigid Particles in Viscous Flows by WAN De-cheng

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Maternal mortality burden study from direct causes. Cuba, 2005-2018 by Lisbeth Fernández González, José Luis Peñalvo, Armando Humberto Seuc Jo, Delia María Gálvez Medina, Armando Rodríguez Salvá, Alain Francisco Morejón Giraldoni

“…The group of complications related to the puerperium (6790) was the direct cause that generated more years of life lost.…”
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A probational experiment on directing citizens of Vilnius to libraries and its preliminary results by Vytautas Rimša

“… A series of experiments on directing town people to libraries was carried out under the program of sociological-psychological research on the theme "The role of libraries in developing and satisfying professional and spiritual interests of young workers." …”
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Impact of mineral dust on the global nitrate aerosol direct and indirect radiative effect by A. Milousis, K. Klingmüller, A. P. Tsimpidi, J. F. Kok, M. Kanakidou, M. Kanakidou, M. Kanakidou, A. Nenes, A. Nenes, V. A. Karydis

“…Overall, the NO<span class="inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" id="M14" display="inline" overflow="scroll" dspmath="mathml"><mrow><msubsup><mi/><mn mathvariant="normal">3</mn><mo>-</mo></msubsup></mrow></math><span><svg:svg xmlns:svg="http://www.w3.org/2000/svg" width="9pt" height="16pt" class="svg-formula" dspmath="mathimg" md5hash="ad57fe4a8dcf7ebabf2d1e48d90b5292"><svg:image xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="acp-25-1333-2025-ie00005.svg" width="9pt" height="16pt" src="acp-25-1333-2025-ie00005.png"/></svg:svg></span></span> aerosol direct effect contributes a global cooling of <span class="inline-formula">−</span>0.11 W m<span class="inline-formula">⁻²</span>, driven by fine-mode particle cooling at short wavelengths. …”
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To Measure or Not to Measure: Direct Oral Anticoagulant Laboratory Assay Monitoring in Clinical Practice by Tania Ahuja, Veronica Raco, Sharonlin Bhardwaj, David Green

“…The need for therapeutic drug monitoring of direct oral anticoagulants (DOACs) remains an area of clinical equipoise. …”
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Efficient direct asymmetric aldol reactions in water using chiral diamide as organocatalysts by Benrzeil Hajar, Tazi Bouchra, Guenoun Farhate

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Wind speed and direction on predicting wind energy availability for a sustainable ecosystem by B. Baranitharan, D. Sivakumar, M. Perarul Selvan

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Reappraisal of ANK2 Variants in Cardiovascular Diseases: Uncovering Mechanisms and Future Directions by Linjuan Guo, Dexi Wu, Wengen Zhu

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Directional solidification of Zn-Al-Cu eutectic alloy by the vertical Bridgman method by Büyük U., Engin S., Maraşlı N.

“…Then, the alloys were directionally solidified upward with different growth rates (V=11.62-230.77 mm/s) at a constant temperature gradient (G=7.17 K/mm) and with different temperature gradients (G=7.17-11.04 K/mm) at a constant growth rate (V=11.62 mm/s) by a Bridgman furnace. …”
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The Role of the IL-12 Cytokine Family in Directing T-Cell Responses in Oral Candidosis by Xiao-Qing Wei, Helen Rogers, Michael A. O. Lewis, David W. Williams

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In‐Situ Rheology Measurements via Machine‐Learning Enhanced Direct‐Ink‐Writing by Robert D. Weeks, Jennifer M. Ruddock, J. Daniel Berrigan, Jennifer A. Lewis, James. O. Hardin

“…Direct ink writing, an extrusion‐based 3D printing method, is well suited for high‐mix low‐volume manufacturing. …”
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Direct current electrical fields inhibit cancer cell motility in microchannel confinements by Benjamin Karem Naggay, Saeed Khomeijani Farahani, Xu Gao, Andrew Holle, Ralf Kemkemer

“…Here we report on the combined impact of micro-confinements and direct current electrical fields (dcEFs) on the motility of MDA-MB-231 human breast cancer cells using a self-developed, easy-to-use platform with microchannels ranging from 3  $$\upmu$$ μ m to 11  $$\upmu$$ μ m in width and 11  $$\upmu$$ μ m height. …”
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Anisotropy and amplification of terahertz electromagnetic response enabled by direct electric current in graphene by Моисеенко , Илья Михайлович, Fateev, Denis Васильевич, Popov, Vyacheslav Valentinovich

“…The purpose of this study is to investigate the polarization conversion and amplification of electromagnetic terahertz (THz) wave incident normally upon graphene monolayer with direct electric current flowing at arbitrary angle to the elecric vector of incident wave. …”
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A Bibliometric Study on the Literature of Critical Pedagogy: Trends, Themes, and Future Directions by Ayhan Ural, Atilla Özdemir

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R&D IN FUNCTION OF DIRECT PUBLIC SUPPORTS TO SMEs: AN EXPLORATORY STUDY IN TURKEY by Filiz Giray, Mehmet Çına, Simla Güzel

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JUSTIFICATION OF THE DIRECTIONS OF DEVELOPMENT OF THE ORGANIZATIONAL AND ECONOMIC MECHANISM OF BUSINESS MANAGEMENT OF MECHANICAL ENGINEERING by V. Kolosova, M. Kostin, M. Sazonova

“…The concept and the main directions of methodology of development of the organizational and economic mechanism of business management of mechanical engineering on the basis of reserve and factorial approach is proved. …”
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Direction convergence analysis of weighted rule for minor component extraction information criteria by Boyang DU, Xiangyu KONG, Xiaowei FENG

“…The extraction of parallel minor components algorithm in directional convergence in signal feature extraction was studied.By comparing the unweighted projection approximation subspace tracking (PAST) algorithm with the weighted PAST parallel minor component extraction algorithm,the evolution method of the minor component extraction algorithm was analyzed.Theorical analysis illustrated that the weighted rule was able to guide the angle evolution between the vectors of the state matrix and minor components.Finally,Matlab simulation verifies the validity of the proposed theory.…”
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DIRECTIVE SPEECH ACTS OF 'BASO PALEMBANG SARI-SARI' : REVIEW OF LANGUAGE POLITENESS by Ummi Nur Atika, Hastari Mayrita

“…The results of this study indicate that there are six types of directive speech acts in the speeches of 'Baso Palembang Sari-Sari', namely invitations, requests, orders, advice, criticisms and prohibitions. …”
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Key experimental technologies and their development directions for the exploration and production of deep coalbed methane by Xia YAN, Fengyin XU, Xianyue XIONG, Feng WANG, Chunhu LI, Jiyuan ZHANG, Borui XU, Qianhui CHENG, Xiong HU, Xueguang ZHU, Wei LIANG, Pu YUAN, Yanqing FENG, Zhenji WEI

“…ProspectsThis study posits seven development directions for deep CBM production and in-situ coal conversion experiments: (1) Clear, direct observation techniques for micropores (< 2 nm) in deep coal seams with ultra-low porosity and permeability, full-scale pore size splicing technology for multiscale pore structure characterized by abundant micropores, a few mesopores, and many macropores, and assessment techniques for pore-fracture connectivity. (2) Isothermal adsorption test technologies for raw coals considering the effects of deep coal seam wettability, fracturing fluid invasion, and high total dissolved solids (TDS) under high-temperature, high-pressure in-situ conditions; (3) Sealed coring devices and in-situ pressure-retaining coring technologies featuring high pressure retaining success rates, heat preservation rates, and traceable gas volume. (4) Nanoscience-based assessment technologies for gas and water occurrence in micropores in deep coal seams under high-temperature and high-pressure multi-field coupling, and experimental technologies for desorption, diffusion, and seepage across nano-micro-millimeter scales. (5) Techniques for developing and testing multifunctional mechanical experiment equipment applicable to in-situ conditions of deep coal seams featuring high stress, low modulus of elasticity, and high Poisson's ratio. (6) Experimental techniques for the purpose of enhancing CBM recovery of deep coal seams, including reservoir stimulation (microwaves, laser, and electric heating), stimulation for permeability enhancement (electromagnetic pulses, pulsed ultrasonic waves, and controlled shockwaves), displacement via CO2 injection, and mechanical pulsation with supercritical CO2. (7) Experimental techniques for in-situ coal conversion and utilization, including pyrolysis, underground coal gasification (UCG), geothermal utilization, and CO2 geological storage. …”
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