Results 61 to 70 of about 5,319 (223)
Stabbing Pairwise Intersecting Disks by Four Points [PDF]
arXiv, 2018 In their seminal work, Danzer (1956, 1986) and Stach\'{o} (1981) established that every set of pairwise intersecting disks in the plane can be stabbed by four points. However, both these proofs are non-constructive, at least in the sense that they do not seem to imply an efficient algorithm for finding the stabbing points, given such a set of disks $D$.
arxiv
Multi‐Scaled Cellulosic Nanonetworks from Tunicates
Advanced Functional Materials, EarlyView.Microbial and plant nanonetworks of cellulose have enabled a wide range of high‐performance yet sustainable materials. Herein, a third class of cellulosic nanonetworks is showcased by exploiting the only animal tissue‐producing cellulose nanofibers, i.e., ascidians. An ultrastructure including spherical cells and a microvasculature with diameters of 50–
Mano Govindharaj +10 more
wiley +1 more source
Traumatic Left Anterior Descending Coronary Artery-Right Ventricle Fistula: A Case Report
Journal of Tehran University Heart Center, 2011 Traumatic coronary artery-cameral fistulas (TCAF) are rare and may present secondary to penetrating injuries (80%) or iatrogenic traumas. Early operative intervention remains the recommended treatment modality for accidental traumatic coronary artery ...
Mohammad Ali Sheikhi +4 more
doaj
Journal of Materials Research and Technology, 2021 In order to prepare a new high-performance and flexibility stab-resistant composite material, one type of high-toughness and high-strength hydrogel is combined with aramid fabric.
Xiayun Zhang +6 more
doaj
Journal of Emergencies, Trauma and Shock, 2012 Background: Suicide by means of self-inflicted stab wounds is relatively uncommon and little is known about this population and their management. Materials and Methods: Retrospective review of adult trauma patients admitted to our Level-1 trauma center ...
James M Badger +2 more
doaj +1 more source
Biofilm Control by Active Topography with Mucin Coating
Advanced Functional Materials, EarlyView.This study reports a new antifouling strategy based on a bioinspired design. Mucin coating enhances biofilm control by active topography with beating micron‐sized pillars. Besides the mechanical force of beating pillars, the antibiofilm activities also involve biological factors since mucin coating inhibits swarming motility and c‐di‐GMP synthesis in ...
Zehui Han +4 more
wiley +1 more source
Materials & Design, 2021 This paper presents the influence of fabric structures and stab angles on single-pass stab impact and the repeated and multi-angle stabbings of 3-dimensional (3D) warp interlock structural fabrics based on the high-molecular-weight polyethylene (HMWPE ...
Mengru Li +3 more
doaj
Advanced Functional Materials, EarlyView.The separation of Helium gas from natural gas is challenging but highly important. MIL‐116(Ga), a “non‐porous” metal–organic framework is used as a molecular sieve to separate He from CH4. Druse‐like MIL‐116(Ga) particles are integrated into polysulfone mixed matrix membranes.
Ayisha Komal +10 more
wiley +1 more source
Counterexample for the 2-approximation of finding partitions of rectilinear polygons with minimum stabbing number [PDF]
arXiv, 2015 This paper presents a counterexample for the approximation algorithm proposed by Durocher and Mehrabi [1] for the general problem of finding a rectangular partition of a rectilinear polygon with minimum stabbing number.
arxiv
Advanced Functional Materials, EarlyView.Simultaneous utilization of calix[4]pyrrole‐ and crown ether‐based molecular recognition allows the construction of a high molecular weight alternating supramolecular polymer. This heat processible polymer can be used as a durable and reusable adhesive on glass and steel with temperature‐enhanced adhesion strength without the need for a solvent ...
Deniz Memis, Abdullah Aydogan
wiley +1 more source