Results 141 to 150 of about 9,186,870 (338)

Measurement and Analysis of Stick-Slip and High-Frequency Torsional Coupled Oscillations of Drill String

Shiyou jixie
The self-excited torsional oscillation of the drilling system can reduce the contact force between the bit and the formation or the relative velocity of the cutting force.To mitigate the impact of this mechanism,the torsional oscillation of the drill ...
Li Yumei, Deng Yanglin, Zhang Tao, Yu Liwei, Liu Ming   +4 more
doaj  

Decoupling the Transparency‐Efficiency Trade‐Off in Semi‐Transparent Organic Solar Cells via Optimized Dual‐Channel Photoelectric Conversion

Advanced Science, EarlyView.
The respective roles of the heterojunction (HJ) and spontaneously formed photo‐charge (SP) channels in low‐donor‐content devices have been decoupled and subjected to a targeted optimization strategy. A breakthrough of light utilization efficiency (LUE) in semi‐transparent organic solar cells (ST‐OSCs) is achieved.
Yuyan Li, Shibo Wang, Heng Liu, Bonan Shi, Zhuoqiong Zhang, Yabing Tang, Yuting Song, Shu Kong So, Dongbin Dang, Han Yan, Xinhui Lu, Guilong Cai, Suojiang Zhang   +12 more
wiley   +1 more source

Bioinspired Adaptive Leg‐Claw Enables Robust Perching and Grasping for UAVs

Advanced Science, EarlyView.
Inspired by owl limb morphology and bat roosting behavior, this study presents a bioinspired adaptive leg‐claw mechanism that enables UAVs to perform robust and versatile perching and grasping. The design integrates a four‐link tibial structure, tension‐driven deformable feet, and active control, enabling stable perching on various branches and ...
Tianyu Cheng, Shaokun Wang, Jiehan Zou, Guiwen Shi, Zhongxue Gan, I‐Ming Chen, Guo‐Niu Zhu   +6 more
wiley   +1 more source

Automated Force Field Developer and Optimizer Platform: Torsion Reparameterization. [PDF]

J Chem Inf Model
Blanco-Gonzalez A, Betancourt W, Snyder RM, Zhang S, Giese TJ, Piskulich ZA, Götz AW, Merz KM, York DM, Aktulga HM, Manathunga M.   +10 more
europepmc   +1 more source

Design of Optical Transducer for Recognition of Biomolecular Interactions between Bacterial Lipopolysaccharides and Amino Acids

Advanced Science, EarlyView.
A deep comprehension of biomolecular phenomena at interfaces is significant with their fundamental and practical importance. Our experimental and theoretical investigations reveal that specific amino acids (glutamic acid and aspartic acid) exhibit an orientational coupling with liquid crystals, which can recognize and optically report the interfacial ...
Yena Choi, Sangmin Lee, Jin‐Kang Choi, Hyunsoo Han, Yeongseon Choi, Jun‐Hyung Im, Hyein Kim, Sangmin Jeon, Minjae Lee, Chang Yun Son, Young‐Ki Kim   +10 more
wiley   +1 more source

Numerical investigation on the torsional improvement of reinforced concrete beams strengthened with various techniques. [PDF]

Sci Rep
Yusuf MA, Zahran MS, Osman A, Nagy NM.
europepmc   +1 more source

Impact of NiO2 Nanoparticles and Curcumin on Testis Torsion/Detorsion Injury: Role of miR-34 and circRNA 0001518

, 2021
Shabnam Moradi, Seyed Abdolhamid Angaji, Mitra Salehi, Mehrdad Hashemi   +3 more
openalex   +1 more source

Mechanically Robust Biodegradable Stents With Theragenerative Vascular Responses via Combined 3D Printing and Janus Nanoengineering

Advanced Science, EarlyView.
This work introduces a theragenerative 3D‐printed biodegradable stent with Janus nanoarchitecture for spatially controlled vascular healing. A luminal tantalum ion–implanted surface accelerates endothelialization and hemocompatibility, while an abluminal sirolimus/poly‐L‐lactic acid–tantalum layer provides sustained drug release and suppresses smooth ...
Jong Hwa Seo, Dong‐Sung Won, Hyun Lee, Seojoon Bang, Hyeong Seok Kang, Ju Yeong Gwon, Chan Ho Moon, Ji Won Kim, Yubeen Park, Minho Kang, Dong Yun Lee, Donghyun Lim, Kisuk Yang, Gi Doo Cha, Soo‐Hong Lee, Tae‐Sik Jang, Seokbeom Kim, Jun‐Kyu Park, Jung‐Hoon Park, Hyun‐Do Jung   +19 more
wiley   +1 more source

Combined Burst Mode versus Torsional Mode Phacoemulsification for Patients with Hard Nuclear Cataracts: A Prospective Comparative Cohort Study. [PDF]

Clin Ophthalmol
Ainiwaer M, Hong Y, Xiao B, Sun Y, Zhang S, Ning L, Liu H, Zhu X, Ji Y.   +8 more
europepmc   +1 more source

Molecularly Engineered Phenoxazinone‐Skeleton Cascade‐Activated NIR Probes for Monitoring Fe2+/Viscosity in Ferroptosis‐Mediated Parkinson's Disease

Advanced Science, EarlyView.
A series of Fe2+/viscosity cascade‐activated NIR fluorescence probes (NP1–5) are synthesized, and NP3 is selected for its optimal properties. To verify application of NP3 in ferroptosis intervention in PD, PQR NPs, is constructed by NP3 and quercetin self‐assembling.
Lixia Guo, Tao Liu, Hongfei Wang, Qi Gao, Zhaobo Yang, Zumeng Wang, Chenlong Li, Yubing Kang, Kahleong Lim, Wen Liu, Li Lu, Chengwu Zhang   +11 more
wiley   +1 more source