The reaction of Ca with HN3 has been investigated theoretically by an ah initio MO methodwith electron correlation being taken into account by second-order MLLER-PLESSET(MP2)perturbation theory Two possible product ch...The reaction of Ca with HN3 has been investigated theoretically by an ah initio MO methodwith electron correlation being taken into account by second-order MLLER-PLESSET(MP2)perturbation theory Two possible product channels. CaN3+H. CaNH+N2, on the potential energysurfaces(PESs) have been examined and the reaction mechanism discussed. Values of tile HN-NZ,HN3, Ca-N3 and Ca-AH bond dissociation energy are also calculated, which are in good agreement withexperiment展开更多
National healthy city establishment is an urban construction activity with Chinese characteristics.As an essential part of establishing national healthy cities,environmental sanitation covers many environmental hygien...National healthy city establishment is an urban construction activity with Chinese characteristics.As an essential part of establishing national healthy cities,environmental sanitation covers many environmental hygiene-related issues.Among them,public place sanitation has been the focus and difficulty in China for many years,especially in key public places(small restaurants,small“internet cafes,”small hairdressers,small dance halls,small hotels,and small bathrooms),which are ubiquitous.展开更多
Pangdonglai,a Chinese supermarket chain with multiple outlets across Xuchang and Xinxiang in Henan Province,is often celebrated for its exceptional service.This reputation stems from the company's widely reported ...Pangdonglai,a Chinese supermarket chain with multiple outlets across Xuchang and Xinxiang in Henan Province,is often celebrated for its exceptional service.This reputation stems from the company's widely reported commitment to prioritizing employee wellbeing.Related initiatives include a"grievance award,"which compensates employees for mistreatment by customers.展开更多
文摘The reaction of Ca with HN3 has been investigated theoretically by an ah initio MO methodwith electron correlation being taken into account by second-order MLLER-PLESSET(MP2)perturbation theory Two possible product channels. CaN3+H. CaNH+N2, on the potential energysurfaces(PESs) have been examined and the reaction mechanism discussed. Values of tile HN-NZ,HN3, Ca-N3 and Ca-AH bond dissociation energy are also calculated, which are in good agreement withexperiment
基金Performance and operation project of the Chinese Preventive Medicine Association(2022)Operation of public health emergency response mechanism of China CDC(131031001000210001).
文摘National healthy city establishment is an urban construction activity with Chinese characteristics.As an essential part of establishing national healthy cities,environmental sanitation covers many environmental hygiene-related issues.Among them,public place sanitation has been the focus and difficulty in China for many years,especially in key public places(small restaurants,small“internet cafes,”small hairdressers,small dance halls,small hotels,and small bathrooms),which are ubiquitous.
文摘Pangdonglai,a Chinese supermarket chain with multiple outlets across Xuchang and Xinxiang in Henan Province,is often celebrated for its exceptional service.This reputation stems from the company's widely reported commitment to prioritizing employee wellbeing.Related initiatives include a"grievance award,"which compensates employees for mistreatment by customers.
