简介:摘要:本文针对互联网中"拍照赚钱"任务如何定价问题建立了基于多元回归模型以及系统聚类的数学模型.考虑到实际情况下,多个任务位置比较集中,因此将距离相近的任务打包发布.本文在建立多元回归模型时,将任务坐标,会员坐标,会员数量以及会员预定任务限额作
简介:摘要:随着信息技术与智能移动终端的飞速发展和普及,“互联网+”时代飞速到来,人们开始新的生活方式。同时也为软件开发模式带来了革新的机遇,本文中提到的是一款通过拍照赚钱来完成任务赚取酬金的自助服务模式,平台的运行核心为APP, 不同于传统的市场调查方式,APP中的核心要素是任务定价。当此任务的任务定价相对较高时,会员会更倾向于进行该任务的调查,因此,我们对定价因素与会员完成情况进行了分析,从而更加节约总任务成本,又使不同地区会员倾向于接取发布的任务。
简介:摘要:作为中华人民共和国成立以来的第一部民法典,民法典从制定到颁布,具有划时代的里程碑意义。这不仅是我国民法的一大创新,更是更深层次的人文关怀,聚焦于人的精神境界和精神追求,印证了民法的以人为本价值。《中华人民共和国民法典》不仅尊重与保护人格权主体的精神利益,也充分保护人格权主体就姓名、名称、肖像、个人信息等人格权要素所享有的经济利益。具体体现在:首先,《中华人民共和国民法典》在对一些具体人格权权能的界定中,明确允许自然人等民事主体依法自行使用和许可他人使用其姓名、名称、肖像等;其次,《中华人民共和国民法典》在第993条一般性地确立人格权的商业化利用规则的同时,还特别对肖像许可使用合同作出了详细的规定;最后,《中华人民共和国民法典》第1082条就侵害生命权、身体权和健康权之外的人身权益的财产损害赔偿责任作出了详细规定,通过侵权责任实现了对人格权中经济利益更好的保护。
简介:AbstractPlacenta percreta with bladder bleeding can occur during gestation or postpartum, posing a great threat to both mother and fetus. But it is rare and lacks standard management strategies. We reported four cases suffering from bladder bleeding caused by placenta percreta even with hemorrhagic shock admitted between January 1st, 2011 and December 31th, 2020 in The First Affiliated Hospital of Zhengzhou University. Clinical information, including age, gravidity and parity, ultrasound and magnetic resonance imaging manifestations, onset gestational age, bladder bleeding volume, clinical manifestations under bleeding, diagnosis, hemostatic methods, hospital stay, treatment cost, and prognosis, are presented. Two cases had bladder bleeding during the second trimester, respectively on the 22+3 and 23+5 weeks. Pregnancy was terminated timely. The other two cases had bladder bleeding on the 2nd day post near-term cesarean section when activity. All the four cases achieved successful hemostasis following angiography and concomitant embolization for iliac vessels, and one of them received electrocoagulation hemostasis under cystoscopy, but failed. They all had favorable clinical outcomes and had no long-term complications. The neonatal outcome in the two cases that bladder hemorrhage occurred after near-term c-section was good. The newborns did not survive in two cases in which bladder hemorrhage occurred at the second trimester of pregnancy. Timely termination of pregnancy is recommended when such a condition develops during gestation. Diagnosis of bladder bleeding is relatively easy, for it is characterized by fast speed and large volume, with concomitant distension of the lower abdomen, blood discharge from the urethral orifice, or the indwelling catheter. Interventional embolization is an effective means to treat bladder bleeding caused by placenta percreta, while electrocoagulation hemostasis under cystoscopy must be applied with great caution. For the pregnant women with a high risk of placenta percreta, timely and accurate diagnosis should be achieved during the gestational age, and bladder bleeding should be concerned when placenta penetrates through the anterior wall of uterus.
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简介:摘要:随着游戏产业的发展,游戏平台定价策略对平台长期发展越发重要。目前国内平台存在盈利不足、利润偏低的问题,平台定价受平台服务能力和市场用户特征两方面影响,需要平台依据市场变化灵活调整定价,因此本文通过分析Steam的定价策略,对国内平台的定价策略进行优化并提出发展建议。
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简介:摘 要:自1978年我国改革开放以来,随着社会经济的不断地发展和供给侧改革,我国面临着如何在经济新常态之下地方政府的招商管理转型的问题。通过研究经济新常态下的招商形势的变化,结合地方政府招商管理模式中存在的政府职能错位、监督管理强度低、招商方式方法不明确等问题,分析政府如何对招商管模式进行升级和优化,为我国的招商管理转型提供一定的借鉴经验。