A strong and room-temperature self-healing DCNC/50PEDA vitrimer is created;The room-temperature self-healing efficiency of DCNC/50PEDA reaches 96.0%;The tensile strength of DCNC/50PEDA is up to 36.0MPa;DCNC/50PEDA shows desired closed-loop recyclability;DCNC/50PEDA features exceptional ...
严谨的判断左右两端是否相等 2、它会优先对比数据的类型是否一致 3、不一致则进行隐式转换,一致则判断值的大小,得出结果 4、继续判断两个类型是否为null与undefined,如果是则返回true 5、接着判断是否为string与number,如果是把string转换为number再对比大小 6、判断其中一方是否为boolean,如果是就转为number再进一步...
In the single networks, homopolymers of P(MEA) have a Tg=−34∘C, whereas the copolymers of the P(MEA-co-IBA) elastomers have a much higher Tg=−5∘C54; thus, the homopolymer P (MEA) is quite elastic, soft, and brittle, allowing for the easier transport of ions, while the...
We further used a 2-point buckling test to investigate the flexibility of the laminated aerogel under complex compressive and tensile stress states. As shown in Fig.3hand its insets as well as Supplementary Movie4, the aerogel can deform to 80% buckling strain and recover to almost its origin...
After a long intermixed sequence of random insertion and deletion, the expected height of the tree approaches square root of the number of keys, √n, which grows much faster than log n. While O(√n) is much larger than O(log n), it is still much smaller than O(n). And it will ...
I'm trying to sign the assembly for my Windows Form C# project using VS 2015 Professional project properties' signing tab. After filling out the "Create Strong Name Key" dialog, I get this error:"The operation could not be completed. Access is denied."...
Intended function:What do you want this app to do? Number of licenses:How many people need access to this tool, and what level of permissions do they need? Budget:How much is your company willing to spend on a tool? Existing tools:How should the new tool properly integrate with or suppo...
Therefore you have to declare an SPI class object with appropriate SPI port number (1..2 for F1, 1..3 for F4) SPIClass mSpi(1); // you can use 1..2 for F1, 1..3 for F4) Then you need to call the following function in setup() before Ethernet.begin(): Ethernet.init(mSpi,...
x="a";putsx;putsxx="b";putsxx="c"x="d";putsx We already have anintuitivemodel of this program’s correctness: it should print “aabd”. Why? Because each of the statementshappen in order. First wewrite the value a, thenread the value a, thenread the value a, thenwrite the va...
Weak control dependence assumes that the program always terminates, in particular, that the loop overdcannot iterate forever. As a result,eis reached by all executions and thus it is not weakly control dependent on any node. However,eis strongly control dependent onbandd. Indeed, if we assume ...