Results 161 to 170 of about 4,023,489 (307)

Annual report of the Health Officer, District of Columbia, 1928

open access: yes, 1928
Report of the Health Officer to the Board of Commissioners of the District of Columbia about Public health.
District of Columbia. Board of Healthet al
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Engineering Local Polar Frustration in Lead‐Free Dielectric Ceramics for Ultrahigh Normalized Energy Storage Performance

open access: yesAdvanced Functional Materials, EarlyView.
Local polar frustration is engineered to stabilize an ergodic relaxer through nanoscale multiphase coexistence, suppressing long‐range ferroelectric order while preserving high polarization. This strategy delivers ultrahigh low‐field normalized energy density (Wa >0.020 mC cm−2), exceptional thermal stability, and a transferable design principle for ...
Hareem Zubairi   +9 more
wiley   +1 more source

Tri-District Parents Council records

open access: yes, 1985
This collection contains records of the Tri-District Parents Council, an association of African-American parents living in Pulaski County, Arkansas, who wanted to improve academic achievement of African-American students in the three school districts of ...
Tri-District Parents Council
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Freeze‐Thaw Engineered Dual Conductivity Polymeric Binder Stabilizes Large‐Volume‐Change Lithium–Ion Battery Anodes

open access: yesAdvanced Functional Materials, EarlyView.
This work developed an all‐aqueous freeze‐thaw strategy to create a dual‐conductive PVA/P3KBT binder for high volume‐change lithium–ion battery anodes. The resulting binder system strengthens the electrode structure, supports ion and electron transport, and accommodates repeated volume changes, reducing cracking and improving long‐term cycling ...
Haoze Ren   +17 more
wiley   +1 more source

District of Columbia, report of the Board of Education., 1928

open access: yes, 1928
Report of the Board of Education.
District of Columbia. Board of Educationet al
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Electrochemical Pathways for Nitrate Conversion to Ammonia: From Environmental Challenges to Ammonia Economy

open access: yesAdvanced Functional Materials, EarlyView.
This perspective presents recent advances in electrocatalytic nitrate reduction, focusing on reaction mechanisms, catalyst design, and electrolyzer configurations. Key challenges in selectivity, stability, and practical wastewater treatment are highlighted, while future directions for advancing sustainable ammonia synthesis and nitrate remediation are ...
Xintong Li   +9 more
wiley   +1 more source

13th annual report of the Department of Playgrounds, District of Columbia, 1924

open access: yes, 1924
Report of the Department of Playgrounds to the Board of Commissioners of the District of Columbia, during the fiscal year ending June 30 ...
District of Columbia. Department of Playgroundset al
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Advancing SafeWax, A Bio‐Inspired Superhydrophobic Coating, Toward Sustainable and Climate‐Resilient Crop Protection

open access: yesAdvanced Functional Materials, EarlyView.
This study advances SafeWax, a bio‐inspired, fatty‐acids‐based superhydrophobic coating, by identifying an agriculturally compliant solvent and revealing how solvent‐controlled Fatty acid crystallization governs the coating's microscopic structure and performance.
Niv Ben‐Arie   +13 more
wiley   +1 more source

Report of the Chief Engineer of the Fire Department of the District of Columbia, 1924

open access: yes, 1924
Report by the Chief Engineer of the Fire Department to the Board of Commissioners of the District of Columbia for the fiscal year ending June 30 ...
District of Columbia. Fire Departmentet al
core  

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