【摘 要】
:
随着5G、AI以及云计算等数字信息技术的迭代推新,互联网与线下实物深度结合演变转化形成"物联网",物联网的诞生推动了中国实体经济向更深层次发展。而随着发展步伐不断地加
【基金项目】
:
巢湖学院校级科研课题(项目编号:XWY-202002)。
论文部分内容阅读
随着5G、AI以及云计算等数字信息技术的迭代推新,互联网与线下实物深度结合演变转化形成\"物联网\",物联网的诞生推动了中国实体经济向更深层次发展。而随着发展步伐不断地加快,对软件和信息技术行业又提出了新的要求。软件和信息技术业对研发的投入程度不仅关乎企业自身的竞争优势更会较为深远的影响国家经济稳快发展。为此,本文以163家软件和信息技术上市公司为研究对象,依据其2017-2019年的财务信息,通过描述性统计、相关性检验以及回归分析对软件和信息技术公司R&D投入对企业绩效的影响进行实证分析,研究发
其他文献
Enteric campylobacteriosis caused by <i>Campylobacter</i> is a real public health problem. It is a typical zoonosis that can be transmitted through direct conta
Fishes are cheap sources of protein and are commonly reared in artificial pond in Nigeria. Bacterial infested fishes have been a serious public health concern.
<i>Toxoplasma gondii</i> is a zoonotic protozoan that can infect any warm-blooded mammal. <i>T. gondii</i> infects about one-third of the human population on th
目的探讨改良内镜下热活检钳电灼术治疗直径<10 mm结直肠微小息肉的效果。方法选取2018年2月至2019年7月焦作市第二人民医院收治的63例结直肠微小息肉患者(直径<10 mm结直肠
<span lang="EN-US" style="font-family:;" "="">The domestic cat has been used as a model to carry out comparative research in assisted reproduction, to be
<b>Background:</b> Approximately 11% of cancer cases are diagnosed in people of childbearing age. Borderline ovarian tumors (BOTs) make up 10%-15% of all ovaria
目的:分析麦默通微创旋切术对直径<1cm良性乳腺肿块患者术后美观效果及血清T淋巴细胞亚群的影响。方法:选取我院2018年6月—2020年5月接收的104例直径<1cm良性乳腺肿块患者作
Constructed Wetlands (CWs) are an adequate wastewater treatment system with possibility to generate income, in particular by the use of plants of economic inter
Plant matter constitutes an important source for producing carbonaceous materials. This work deals with the preparation of active carbons from shells of<em> Par
The Cu<sub>2</sub>O thin films were synthesized by using RF sputtering technique. Comparisons were made with films created by deposition at room temperature fol