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人龙传说

房子“会呼吸” 节能超九成_我的网站

天国的阶梯

一 | 在涿鹿经济开发区，有一家公司造的房子“会呼吸”。

二 | Beverages marketed as toddler "formula" are unnecessary and some have questionable marketing practices, according to a new report from the American Academy of Pediatrics.In recent years, the popularity of these formulas — referred to as Older Infant and Young Child Formulas (OIYCFs) — has risen significantly, according to research published in the journal Public Health Nutrition. The study found sales went up by 158% between 2006 and 2015. However, experts say there are several concerns surrounding their usage."Many parents mistakenly believe that OIYCFs offer something more, something unique that cow milk together with a varied diet with fortified foods can't provide," Dr. George Fuchs, professor of pediatrics and epidemiology at the University of Kentucky and lead author on the new AAP report, told ABC News. "This misconception can be largely attributed to the advertising and branding of these products."The AAP recommends babies drink infant formula or breastmilk until they are 12 months old and then transition to cow's milk in addition to solid foods, which are typically introduced at about 6 months.Toddler "formula" is sometimes marketed as a "transitional" or "weaning" formula for infants who are 0 -12 months old, according to the new report. But unlike infant formula, which must meet certain FDA guidelines for nutritional content, there are no standard nutritional requirements for toddler "formula," the report says."Toddler formula is unnecessary for the vast majority of toddlers and its nutritional value is inferior to that of whole cow's milk, especially when accounting for the additional sugar content of toddler formula," Dr. Keyana Washington, a pediatrician with Gwinnett Pediatrics & Adolescent Medicine in Georgia, who was not involved with the report, told ABC News.There are misconceptions about the drinks, according to Dr. Nagela Sainté-Thomas, a pediatric emergency medicine specialist from El Paso, Texas."One reason for their popularity is parents and caregivers believe these drinks provide nutrients similar to solid foods and if they have significant challenges integrating solids into their toddler's diet, they can easily utilize this 'nutritional' substitution," Sainté-Thomas, who was not involved in the AAP report, told ABC News.In 1986, The World Health Assembly had already identified special formulas for older infants as unnecessary. Many global health organizations -- including the U.S. Centers for Disease Control and Prevention and UNICEF, in addition to WHO -- emphasize that a combination of breast milk, whole cow's milk, water, and appropriate solid foods is nutritionally sufficient for most toddlers.Toddler "formulas" are not necessarily dangerous or bad for children, the AAP said in its report. They can be part of a balanced diet for babies 12 months and older, but are not better than cow's milk, the report said.But some companies making OIYCFs imply that their products add an important part of a toddler diet, even though that's not the case, according to the new AAP report.OIYCFs often appear very similar to infant formulas, according to the AAP report, which may cause confusion among parents and caregivers. Some companies use similar names, colors, designs, and even slogans for their OIYCFs and infant formulas, the report found.The pediatricians ABC News spoke with say parents and caregivers should make sure toddlers have a varied diet that includes fruits, vegetables, whole grains, proteins, dairy, water, and either breast milk, infant formula, or whole cow's milk.Parents and caregivers should talk to their pediatricians about the role OIYCFs might play in their child's diet."The decision to deviate from the recommendation to give whole cow's milk starting at age 12 months is one that parents should make in consultation with their pediatrician," Washington said.Daniel A. Carnegie, MD, MPH, MBA is a preventive medicine resident at The University of North Carolina at Chapel Hill and a member of the ABC News Medical Unit.。“为啥说这房子‘会呼吸’呢？因为它是被动式超低能耗建筑，即使不开窗通风，室内空气也能与室外循环，温度、湿度会自动调节，就像有了自然顺畅的呼吸。”8月14日，在中规低碳（张家口）建筑技术有限公司的样板房内，该公司市场部部长李宏利向客商介绍超低能耗建筑的优势。

8月14日，在中规低碳（张家口）建筑技术有限公司的样板房外，工作人员向客商介绍被动式超低能耗建筑的优势。

三 | 日报记者郭晓通摄窗外是交通主干道，样板房门窗紧闭，记者在室内听不到车辆驶过的声音，也感觉不到憋闷。从外表看，样板房与一般建筑差别不大，特别之处在于不依赖空调和暖气，室内温度可常年稳定在20至26摄氏度。“被动式超低能耗建筑就像保温瓶，夏天隔热、冬天保温，比传统建筑节能90%以上。”该公司副总经理杨冬明介绍，“会呼吸”的房子应用了10余项专利，采用了许多节能环保“黑科技”。在公司展厅，李宏利向记者展示了绿色建筑材料的神奇之处。她拿着便携喷火枪，烧灼一块薄薄的白色板材，板材竟无变化、不燃烧。记者用手触摸其背面，也感觉不到发烫。“这是用来制作墙体的轻骨料，防火、保温。”李宏利说，超低能耗建筑还搭配了高性能门窗系统，有效解决房屋夏天不隔热、冬天不隔冷的问题。针对超低能耗建筑气密性高的特点，该公司研发了新风系统，室外空气进入多功能一体机过滤，净化后的新鲜空气被输送到每个房间中。北方地区冬季寒冷，新风系统排出室内空气的同时，能将78%的热量进行回收利用，使房子达到恒温状态，避免了频繁开窗换气、冷风灌入的困扰。时间久了，超低能耗建筑内的空气会不会变差？在密闭样板房内，李宏利拿着手中的空气负氧离子检测仪给出了答案，检测仪上显示负氧离子数为2700个/cm3。“除了新风系统，我们还应用新型室内装修材料，常年缓慢释放负氧离子，使室内空气保持清新。”李宏利说。据介绍，装配式建筑作业像搭积木一样，采用系统化设计、模块化拆分、工厂制造、现场装配的方式建造，缩短建筑工期，节约建筑成本。